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Cathy Waterman Aquamarine Diamond Bracelet 7 Strand Platinum Estate
Cathy Waterman Aquamarine Diamond Bracelet 7 Strand Platinum Estate

Cathy Waterman Aquamarine Diamond Bracelet 7 Strand Platinum Estate

By Cathy Waterman

Located in Torrance, CA

Finely detailed pre-owned Cathy Waterman 7 strand aquamarine & diamond bracelet crafted in 900 platinum. Seven strands of faceted aquamarine measure (average) 3mm.

Category

21st Century and Contemporary American Contemporary Beaded Bracelets

Materials

Aquamarine, Diamond, White Diamond, Platinum

Art Nouveau Platinum 18K Gold 1.77ctw Pearl Sapphire Diamond Navette Ring
Art Nouveau Platinum 18K Gold 1.77ctw Pearl Sapphire Diamond Navette Ring

Art Nouveau Platinum 18K Gold 1.77ctw Pearl Sapphire Diamond Navette Ring

Located in Houston, TX

Gender: Ladies Metal Type: 18K Yellow Gold & 900 Platinum Ring Size: 4.25 Width: 25.50 mm tapering to 13.70 mm Thick: 1.00 mm Weight: 5.10 grams Ladies 18K yellow gold and ...

Category

21st Century and Contemporary Cocktail Rings

Materials

Diamond, Pearl, Sapphire, Gold, 18k Gold, Yellow Gold, Platinum

Antique Art Deco Platinum Old European Diamond and Sapphire Stud Dangle Earrings
Antique Art Deco Platinum Old European Diamond and Sapphire Stud Dangle Earrings

Antique Art Deco Platinum Old European Diamond and Sapphire Stud Dangle Earrings

Located in Houston, TX

Gender: Ladies Metal Type: 900 Platinum Length: 2.50 inches Width: 15.30 mm Weight: 11.86 grams One pair of ladies ANTIQUE filigreed 900 platinum diamond, and sapphire art-deco ...

Category

21st Century and Contemporary Unknown Dangle Earrings

Materials

Diamond, Sapphire, Platinum

Antique French 14k Yellow Gold and Platinum Star Ruby Diamond Pendant Necklace
Antique French 14k Yellow Gold and Platinum Star Ruby Diamond Pendant Necklace

Antique French 14k Yellow Gold and Platinum Star Ruby Diamond Pendant Necklace

Located in New York, NY

Weight: 9.7 Grams Stone: 16.15ct Star Ruby Stone: 1.10ctw Diamond Measurements: 19.6 x 22.9 x 8.8mm Pendant Measurements: 19.6 x 22.9 x 8.8mm Length: 18" Hallmark: French 18k Eagle, ...

Category

20th Century Pendant Necklaces

Materials

Diamond, Star Ruby, Yellow Gold, Platinum

Wonderful Platinum 7.52ctw Fiery Jelly Opal w/ Diamond Halo Statement Ring
Wonderful Platinum 7.52ctw Fiery Jelly Opal w/ Diamond Halo Statement Ring

Wonderful Platinum 7.52ctw Fiery Jelly Opal w/ Diamond Halo Statement Ring

Located in Montclair, NJ

.) - 6.41ct (exact) Numerous Natural Genuine Diamonds - Princess & Round Brilliant Cut - Prong Set - Nice Brilliant White Diamonds - 1.11ctw (exact) Total Carat Weight: 7.52 (exact) ...

Category

21st Century and Contemporary Fashion Rings

Materials

Diamond, Opal, Platinum

Vintage Classy Platinum 5.92ct Exceptional Color Opal Diamond Halo Cocktail Ring
Vintage Classy Platinum 5.92ct Exceptional Color Opal Diamond Halo Cocktail Ring

Vintage Classy Platinum 5.92ct Exceptional Color Opal Diamond Halo Cocktail Ring

Located in Montclair, NJ

--Stone(s):-- (1) Natural Genuine Opal - Oval Cabochon Cut - Prong Set - White Color w/ Exceptional Play of Colors Red, Orange, Blue, Green & Everything in Between - 16.3x12.4mm / 5....

Category

20th Century Cocktail Rings

Materials

Diamond, Opal, Platinum

Jabel EGL Certified .30 Carat Round Diamond Platinum Engagement Ring
Jabel EGL Certified .30 Carat Round Diamond Platinum Engagement Ring

Jabel EGL Certified .30 Carat Round Diamond Platinum Engagement Ring

By Jabel

Located in Stamford, CT

Crafted with meticulous attention to detail, this ring is a stunning showcase of craftsmanship from the early 20th century. 1 transitional brilliant cut Diamond, approx. total weig...

Category

Early 20th Century Engagement Rings

Materials

Diamond, Platinum

Art Deco Diamond Platinum Ladies Wrist Watch Mined 1ct 1930's Custom Dial
Art Deco Diamond Platinum Ladies Wrist Watch Mined 1ct 1930's Custom Dial

Art Deco Diamond Platinum Ladies Wrist Watch Mined 1ct 1930's Custom Dial

Located in Dearborn, MI

Rowe" Platinum Case Offers Lasting Value, While the Mined Diamonds Deliver a Level of Sparkle and Sophistication that Stands the Test of Time Runs Great and Keeps Good Time Brand ...

Category

Vintage 1930s Wrist Watches

Materials

Diamond, Platinum

Classic MICHAEL BEAUDRY Platinum GIA Certified 1.02-ct Diamond Ring
Classic MICHAEL BEAUDRY Platinum GIA Certified 1.02-ct Diamond Ring

Classic MICHAEL BEAUDRY Platinum GIA Certified 1.02-ct Diamond Ring

By Michael Beaudry

Located in New York, NY

MICHAEL BEAUDRY 3-Diamond Ring with GIA Certified Center Diamond weighing 1.02 carats in H color & SI clarity. 2 side diamonds & 8 accent diamonds on the shoulders. Filigree ...

Category

1990s American Modern Engagement Rings

Materials

Diamond, Platinum

18k Yellow Gold & Platinum Fiery Brilliant Diamond Wavy Solid Band Ring
18k Yellow Gold & Platinum Fiery Brilliant Diamond Wavy Solid Band Ring

18k Yellow Gold & Platinum Fiery Brilliant Diamond Wavy Solid Band Ring

Located in Montclair, NJ

Material: Half Solid 18k Yellow Gold w/ Half .900+ Platinum Weight: 12.82 Grams Ring Size: 7.0 (Fitted on a finger.

Category

21st Century and Contemporary Band Rings

Materials

Diamond, Gold, 18k Gold, Yellow Gold, Platinum

Antique Edwardian Platinum 14K White Gold 1.09ct Diamond Filigree Cocktail Ring
Antique Edwardian Platinum 14K White Gold 1.09ct Diamond Filigree Cocktail Ring

Antique Edwardian Platinum 14K White Gold 1.09ct Diamond Filigree Cocktail Ring

Located in Houston, TX

Gender: Ladies Metal Type: 14K White Gold & 900 Platinum Ring Size: 5 Width: 1.55 mm Weight: 3.48 grams Ladies handmade filigreed, 900 Platinum and 14K white gold edwardian ...

Category

Early 20th Century Cocktail Rings

Materials

Diamond, Gold, 14k Gold, White Gold, Platinum

GIA Cat’s Eye Chrysoberyl & Diamond Cocktail Ring in Platinum- GIA 6237879480
GIA Cat’s Eye Chrysoberyl & Diamond Cocktail Ring in Platinum- GIA 6237879480

GIA Cat’s Eye Chrysoberyl & Diamond Cocktail Ring in Platinum- GIA 6237879480

Located in Bloomington, MN

GIA Cat’s Eye Chrysoberyl & Diamond Cocktail Ring in Platinum- GIA 6237879480 This cocktail ring is crafted in 900 platinum and features a 3.98-carat cat’s eye chrysoberyl as th...

Category

Mid-20th Century Retro Cocktail Rings

Materials

Chrysoberyl, Diamond, Cat’s Eye, Platinum

Solid Platinum 1.32ctw Oval Sapphire & Diamond Flared Beaded Textured Band Ring
Solid Platinum 1.32ctw Oval Sapphire & Diamond Flared Beaded Textured Band Ring

Solid Platinum 1.32ctw Oval Sapphire & Diamond Flared Beaded Textured Band Ring

Located in Montclair, NJ

--Stone(s):-- (1) Natural Genuine Sapphires - Oval Cut - Prong Set - Rich Blue Color - 7.1x5.6mm - 1.20ctw (exact) (6) Natural Genuine Diamonds - Round Brilliant Cut - Pavé Set - VS2...

Category

21st Century and Contemporary Band Rings

Materials

Diamond, Sapphire, Platinum

Platinum 2.41ct Marquise Ruby & Baguette Diamond Scalloped 13.9mm Wide Band Ring
Platinum 2.41ct Marquise Ruby & Baguette Diamond Scalloped 13.9mm Wide Band Ring

Platinum 2.41ct Marquise Ruby & Baguette Diamond Scalloped 13.9mm Wide Band Ring

Located in Montclair, NJ

–Stone(s): – (11) Natural Genuine Rubies- Marquise Cut - Prong Set - Clean Vibrant Slightly Pinkish Red Color - 1.52ctw (exact) Numerous Natural Genuine Diamond - Baguette Cut - Chan...

Category

21st Century and Contemporary Band Rings

Materials

Diamond, Ruby, Platinum

Vintage Platinum GIA 2.93ctw Old Emerald Cut & Baguette Diamond Engagement Ring
Vintage Platinum GIA 2.93ctw Old Emerald Cut & Baguette Diamond Engagement Ring

Vintage Platinum GIA 2.93ctw Old Emerald Cut & Baguette Diamond Engagement Ring

Located in Montclair, NJ

Total Carat Weight: 2.93 (approx.) Material: Solid .900+ Platinum Weight: 5.71 Grams Ring Size: 5.5 (Fitted on a finger.

Category

21st Century and Contemporary Engagement Rings

Materials

Diamond, Platinum

Platinum & Rose Gold GIA 1.1ctw Pink White Diamond Station Bezel Chain Necklace
Platinum & Rose Gold GIA 1.1ctw Pink White Diamond Station Bezel Chain Necklace

Platinum & Rose Gold GIA 1.1ctw Pink White Diamond Station Bezel Chain Necklace

Located in Montclair, NJ

Total Carat Weight: 1.1 (approx.) Material: Solid .900+ Platinum w/ Rose Gold Bezels Weight: 4.72 Grams Chain Type: 0.8mm Cable Link Chain Length: Adjustable to 17.5 or 18.5 Inches ...

Category

21st Century and Contemporary Link Necklaces

Materials

White Diamond, Pink Diamond, Rose Gold, Platinum

Classic Style Platinum 3.19ctw Oval Cabochon Opal w/ Diamond Halo Ring
Classic Style Platinum 3.19ctw Oval Cabochon Opal w/ Diamond Halo Ring

Classic Style Platinum 3.19ctw Oval Cabochon Opal w/ Diamond Halo Ring

Located in Montclair, NJ

--Stone(s):-- (1) Natural Genuine Opal - Oval Cabochon Cut - Prong Set - Lively Nice Color - White Base w/ Green, Blue & Orange Play Of Colors- 11.8x9.6mm / 2.86ct (exact) Numerous N...

Category

21st Century and Contemporary Neoclassical Solitaire Rings

Materials

Diamond, Opal, Platinum

Platinum High Quality 3.13ctw Opal Diamond Floral Ballerina Design Cocktail Ring
Platinum High Quality 3.13ctw Opal Diamond Floral Ballerina Design Cocktail Ring

Platinum High Quality 3.13ctw Opal Diamond Floral Ballerina Design Cocktail Ring

Located in Montclair, NJ

--Stone(s):-- (1) Natural Genuine Opal - Oval Cabochon Cut - Prong Set - Fiery Very Nice Color w/ Excellent Play of Colors - 10.6x8.4mm / 2.29ct (exact) Numerous Natural Genuine Diam...

Category

21st Century and Contemporary Cocktail Rings

Materials

Diamond, Fire Opal, Platinum

New Platinum GIA 2.58ctw Princess Diamond & Sapphire Solitaire Engagement Ring
New Platinum GIA 2.58ctw Princess Diamond & Sapphire Solitaire Engagement Ring

New Platinum GIA 2.58ctw Princess Diamond & Sapphire Solitaire Engagement Ring

Located in Montclair, NJ

--Stone(s):-- (1) Natural Genuine Diamond - Princess Cut - Prong Set - F Color - VS1 Clarity - 1.18ct (exact, certified) ** See Certification Details Below for Complete Info ** (20) ...

Category

2010s American Engagement Rings

Materials

Diamond, Sapphire, Platinum

Antique Art Deco Platinum 1.96ct Gia Royal Blue Sapphire Diamond Cocktail Ring
Antique Art Deco Platinum 1.96ct Gia Royal Blue Sapphire Diamond Cocktail Ring

Antique Art Deco Platinum 1.96ct Gia Royal Blue Sapphire Diamond Cocktail Ring

Located in Houston, TX

Gender: Ladies Metal Type: 900 Platinum Ring Size: 6.5  Width: 1.35 mm Weight: 3.27 grams Ladies handmade filigreed 900 platinum art deco (1920-1930), diamond and sapphire halo,...

Category

Early 20th Century Cocktail Rings

Materials

Diamond, Blue Sapphire, Platinum

7.74ct Fancy Fantasy Cut Light Blue Aquamarine Diamond Platinum Pendant Necklace
7.74ct Fancy Fantasy Cut Light Blue Aquamarine Diamond Platinum Pendant Necklace

7.74ct Fancy Fantasy Cut Light Blue Aquamarine Diamond Platinum Pendant Necklace

By Gems and Jewels UK

Located in Birmingham, GB

This unique aquamarine is set in a beautiful 900 platinum pendant with diamonds accents. Featuring 0.10 carat of natural round brilliant cut diamonds set into the bail.

Category

21st Century and Contemporary Pendant Necklaces

Materials

Aquamarine, Diamond, White Diamond, Platinum

Pink Tourmaline Diamond Ring Platinum Sz 6 Emerald Cut Square Cocktail Jewelry
Pink Tourmaline Diamond Ring Platinum Sz 6 Emerald Cut Square Cocktail Jewelry

Pink Tourmaline Diamond Ring Platinum Sz 6 Emerald Cut Square Cocktail Jewelry

Located in Torrance, CA

The mount measures 13.5 mm in diameter (0.53 inches) rising 10mm from the finger. Metal & Hallmark: 900 platinum. The ring is not hallmarked though it has tested positive for platinum.

Category

Late 20th Century American Modern Cocktail Rings

Materials

Diamond, White Diamond, Tourmaline, Platinum

David Webb 18k Gold & Platinum 5.5ctw Diamond Black Enamel Square Step Earrings
David Webb 18k Gold & Platinum 5.5ctw Diamond Black Enamel Square Step Earrings

David Webb 18k Gold & Platinum 5.5ctw Diamond Black Enamel Square Step Earrings

By David Webb

Located in Montclair, NJ

Black Enamel Work Material: Solid 18k Yellow Gold w/ .900+ Platinum Weight: 37.83 Grams Backing: Clip On Closures (Pierced ears are NOT required.)

Category

21st Century and Contemporary Clip-on Earrings

Materials

Diamond, Gold, 18k Gold, Yellow Gold, Platinum, Enamel

Antique 2.38 Carat Diamond and Platinum Solitaire Engagement Ring, Circa 1935
Antique 2.38 Carat Diamond and Platinum Solitaire Engagement Ring, Circa 1935

Antique 2.38 Carat Diamond and Platinum Solitaire Engagement Ring, Circa 1935

Located in Jesmond, Newcastle Upon Tyne

The shoulders integrate with the main setting and blend seamlessly with the plain hallmarked platinum shank. The interior of the shank is hallmarked with the platinum mark (100 IRID...

Category

Vintage 1930s Unknown Engagement Rings

Materials

Diamond, Platinum

Platinum 3.1ctw GIA No Heat Cushion Pure Pink Spinel Pave Diamond Shoulders Ring
Platinum 3.1ctw GIA No Heat Cushion Pure Pink Spinel Pave Diamond Shoulders Ring

Platinum 3.1ctw GIA No Heat Cushion Pure Pink Spinel Pave Diamond Shoulders Ring

Located in Montclair, NJ

Total Carat Weight: 3.1 (approx.) Material: Solid .900+ Platinum (tested) Weight: 5.62 Grams Ring Size: 4.5 (Fitted on a finger.

Category

21st Century and Contemporary Cocktail Rings

Materials

Diamond, Spinel, Platinum

GIA Certified 10.03 Carat Emerald Cut Diamond Platinum Ring
GIA Certified 10.03 Carat Emerald Cut Diamond Platinum Ring

GIA Certified 10.03 Carat Emerald Cut Diamond Platinum Ring

By Gad & Co.

Located in Miami, FL

Center Stone: Carat: 10.03 Carat Color: J Clarity: VS1 Cut: Emerald Certificate: GIA Measurement: 15.62 x 10.14 x 4.80 MM Certificate Number: #2155926250 Ring Details: Ring Type: ...

Category

21st Century and Contemporary Modern Engagement Rings

Materials

Diamond, White Diamond, Platinum

Vintage Platinum 1.54ctw Oval Cabochon Cut Star Ruby & Diamond Classy Ring
Vintage Platinum 1.54ctw Oval Cabochon Cut Star Ruby & Diamond Classy Ring

Vintage Platinum 1.54ctw Oval Cabochon Cut Star Ruby & Diamond Classy Ring

Located in Montclair, NJ

--Stone(s):-- (1) Natural Genuine Star Ruby - Oval Cabochon Cut - Prong Set - Vivid Red Color - 1.15ct (exact - stamped) Numerous Natural Genuine Diamonds - Round Brilliant Cut - Pro...

Category

20th Century Engagement Rings

Materials

Diamond, Ruby, Platinum

Platinum GIA Graded 5.93ctw Oval Royal Blue Sapphire & Diamond Target Ring
Platinum GIA Graded 5.93ctw Oval Royal Blue Sapphire & Diamond Target Ring

Platinum GIA Graded 5.93ctw Oval Royal Blue Sapphire & Diamond Target Ring

Located in Montclair, NJ

--Stone(s):-- (1) Natural Genuine Sapphire - Oval Brilliant Cut - Prong Set - True Royal Blue Color - Heated - Ceylon - 5.33ct (exact) ** See Certification Details Below for Complete...

Category

21st Century and Contemporary Engagement Rings

Materials

Diamond, Sapphire, Platinum

Art Deco Platinum 1.6ctw 4 Stone Large Old European Diamond Stack Band Ring
Art Deco Platinum 1.6ctw 4 Stone Large Old European Diamond Stack Band Ring

Art Deco Platinum 1.6ctw 4 Stone Large Old European Diamond Stack Band Ring

Located in Montclair, NJ

Total Carat Weight: 1.6 (approx.) Material: Solid .700-.900 Platinum - Stamped 10% Irid Plat Weight: 3.5 Grams Ring Size: 6.5 (Fitted on a finger, We can custom size this ring - ple...

Category

20th Century Art Deco Wedding Rings

Materials

Diamond, Platinum

1.63ct GIA Certified Fine Colombian Emerald & Diamond Platinum Seven Stone Ring
1.63ct GIA Certified Fine Colombian Emerald & Diamond Platinum Seven Stone Ring

1.63ct GIA Certified Fine Colombian Emerald & Diamond Platinum Seven Stone Ring

By Gems and Jewels UK

Located in Birmingham, GB

These are very high quality natural diamonds. All set in a classic 900 platinum five stone stone ring. Ring size UK P - US 7.75 - EU 56.

Category

21st Century and Contemporary Cluster Rings

Materials

Diamond, White Diamond, Emerald, Platinum

1.17ct FINE Australian Black Opal & Baguette Diamond Five Stone Platinum Ring
1.17ct FINE Australian Black Opal & Baguette Diamond Five Stone Platinum Ring

1.17ct FINE Australian Black Opal & Baguette Diamond Five Stone Platinum Ring

By Gems and Jewels UK

Located in Birmingham, GB

Ring weighs 5.60g and and is fully hallmarked by UK assay office as 900 platinum to guarantee metal quality. All our jewellery is posted safely and securely in leatherette boxes.

Category

21st Century and Contemporary Cocktail Rings

Materials

Diamond, Opal, Black Opal, Platinum

Antique Edwardian Diamond Jabot Pin Platinum Brooch Fine Heirloom Jewelry
Antique Edwardian Diamond Jabot Pin Platinum Brooch Fine Heirloom Jewelry

Antique Edwardian Diamond Jabot Pin Platinum Brooch Fine Heirloom Jewelry

Located in Torrance, CA

Metal & Hallmark: 800-900 range platinum + 17 karat to 18 karat gold range (back of pin).

Category

Early 20th Century Edwardian Brooches

Materials

Diamond, White Diamond, Onyx, Gold, 18k Gold, Yellow Gold, Platinum

Platinum 4.95ctw GIA No Heat Color Change Sapphire w/ Diamond Halo Frame Ring
Platinum 4.95ctw GIA No Heat Color Change Sapphire w/ Diamond Halo Frame Ring

Platinum 4.95ctw GIA No Heat Color Change Sapphire w/ Diamond Halo Frame Ring

Located in Montclair, NJ

--Stone(s):-- (1) Natural Genuine Sapphire - Vintage Oval Cut - Prong Set - Bluish Violet changing to Purple - No Heat - 3.58ct (exact) ** See Certification Details Below for Complet...

Category

21st Century and Contemporary Cocktail Rings

Materials

Diamond, Purple Sapphire, Platinum

Briolette 0.60ct Diamond Fringe Earrings Estate Platinum Drops Fine Jewelry
Briolette 0.60ct Diamond Fringe Earrings Estate Platinum Drops Fine Jewelry

Briolette 0.60ct Diamond Fringe Earrings Estate Platinum Drops Fine Jewelry

Located in Torrance, CA

The earrings are fitted with post and butterfly backings. Metal & Hallmark: 900 platinum. The earrings are hallmarked "Pt900".

Category

21st Century and Contemporary Unknown Contemporary Drop Earrings

Materials

Diamond, White Diamond, Platinum

NEW Platinum GIA 1.54ctw Elongated Radiant Cut Diamond Solitaire Engagement Ring
NEW Platinum GIA 1.54ctw Elongated Radiant Cut Diamond Solitaire Engagement Ring

NEW Platinum GIA 1.54ctw Elongated Radiant Cut Diamond Solitaire Engagement Ring

Located in Montclair, NJ

--Stone(s):-- (1) Natural Genuine Diamond - Elongated Radiant Cut - Double Claw Prong Set - F Color - SI1 Clarity - 1.04ct (exact - certified) **See Certifications Details Below** (2...

Category

2010s American Engagement Rings

Materials

Diamond, Platinum

Blue Nile Platinum 0.60ctw Channel Set Square Step Diamond Wedding Band Ring
Blue Nile Platinum 0.60ctw Channel Set Square Step Diamond Wedding Band Ring

Blue Nile Platinum 0.60ctw Channel Set Square Step Diamond Wedding Band Ring

By Blue Nile

Located in Montclair, NJ

--Stone(s):-- (12) Natural Genuine Diamonds - Square Step Carre Cut- Channel Set - F/G Color - VVS2/VS1 Clarity Total Carat Weight: 0.60 (approx.) Material: Solid .900+ Platinum Wei...

Category

21st Century and Contemporary Wedding Rings

Materials

Diamond, Platinum

Platinum GIA 22.91ctw Spessartine Spessartite Garnet & Diamond Split Shank Ring
Platinum GIA 22.91ctw Spessartine Spessartite Garnet & Diamond Split Shank Ring

Platinum GIA 22.91ctw Spessartine Spessartite Garnet & Diamond Split Shank Ring

Located in Montclair, NJ

--Stone(s):-- (1) Natural Genuine Spessartine Garnet - Cushion Brilliant Cut - Prong Set - Incredible RARE Orangy Red Color - 22.02ct (exact - certified) ** See Certification Detail...

Category

21st Century and Contemporary American Cocktail Rings

Materials

Diamond, Garnet, Platinum

Diamond Leaf Eternity Ring Platinum Band Vintage Fine Jewelry Estate
Diamond Leaf Eternity Ring Platinum Band Vintage Fine Jewelry Estate

Diamond Leaf Eternity Ring Platinum Band Vintage Fine Jewelry Estate

Located in Torrance, CA

The band measures 7.5mm (0.29 inches), rising 2mm from the finger. Metal & Hallmark: 900 platinum. The ring is not hallmarked though it has tested positive for platinum.

Category

Mid-20th Century Unknown Modern Band Rings

Materials

Diamond, White Diamond, Platinum

Antique Platinum 18K Gold Gia Royal Blue Kashmir Sapphire Diamond Cocktail Ring
Antique Platinum 18K Gold Gia Royal Blue Kashmir Sapphire Diamond Cocktail Ring

Antique Platinum 18K Gold Gia Royal Blue Kashmir Sapphire Diamond Cocktail Ring

Located in Houston, TX

Gender: Ladies Metal Type: 18K Yellow Gold & 900 Platinum Ring Size: 5 Width: 1.70 mm Weight: 4.86 grams Ladies 18K yellow gold and 900 platinum antique, diamond and no heat...

Category

Early 20th Century Cocktail Rings

Materials

Diamond, Sapphire, Gold, 18k Gold, Yellow Gold, Platinum

Antique Van Cleef & Arpels VCA Platinum .60ct Diamond Engagement Ring Box Paper
Antique Van Cleef & Arpels VCA Platinum .60ct Diamond Engagement Ring Box Paper

Antique Van Cleef & Arpels VCA Platinum .60ct Diamond Engagement Ring Box Paper

By Van Cleef & Arpels

Located in Montclair, NJ

Total Carat Weight: 0.60 (approx.) Material: Solid .900+ Platinum Weight: 3.13 Grams Ring Size: 7.0 (fitted on a finger.

Category

Antique 19th Century Art Deco Engagement Rings

Materials

Diamond, Platinum

VEVER PARIS 1900 Edwardian Enamelled Platinum Necklace With Diamonds & Pearls
VEVER PARIS 1900 Edwardian Enamelled Platinum Necklace With Diamonds & Pearls

VEVER PARIS 1900 Edwardian Enamelled Platinum Necklace With Diamonds & Pearls

Located in Miami, FL

The fabulous piece has been masterfully crafted in .900/.999 platinum and mounted with an almond-shaped panel embellished with engine turned patterns topped with blue-gray glass enam...

Category

Antique Early 1900s French Edwardian Pendant Necklaces

Materials

Diamond, Pearl, White Diamond, Platinum, Enamel

Antique Art Deco Platinum Bezel Old Mine Cushion Diamond & Sapphire Halo Ring
Antique Art Deco Platinum Bezel Old Mine Cushion Diamond & Sapphire Halo Ring

Antique Art Deco Platinum Bezel Old Mine Cushion Diamond & Sapphire Halo Ring

Located in Montclair, NJ

Total Carat Weight: 1.8 (approx.) Material: Solid .900+ Platinum - (bottom of the shank shows low karat gold due to previous sizing) Weight: 2.95 Grams Ring Size: 5.5 (Fitted on a f...

Category

20th Century Art Deco Cocktail Rings

Materials

Diamond, Sapphire, Gold, Platinum

Platinum w/ 18k Gold SSEF Gorgeous Green Colombian Emerald & Diamond Ring
Platinum w/ 18k Gold SSEF Gorgeous Green Colombian Emerald & Diamond Ring

Platinum w/ 18k Gold SSEF Gorgeous Green Colombian Emerald & Diamond Ring

Located in Montclair, NJ

Total Carat Weight: 1.832 (approx.) Material: Solid .900+ Platinum w/ 18k Yellow Gold Basket - Stamped PLAT Weight: 7.38 Grams Ring Size: 7.5 (We can custom size this ring - Please ...

Category

21st Century and Contemporary Cocktail Rings

Materials

Diamond, Emerald, Gold, 18k Gold, Yellow Gold, Platinum

6.43 Carat Purple Pink Natural Sapphire Diamond Platinum Engagement Ring
6.43 Carat Purple Pink Natural Sapphire Diamond Platinum Engagement Ring

6.43 Carat Purple Pink Natural Sapphire Diamond Platinum Engagement Ring

Located in Stamford, CT

Encased in the brilliance of luxurious diamonds, this captivating sapphire finds its perfect setting in a band of lustrous platinum, designed to endure the test of time. The harmonio...

Category

Mid-20th Century Engagement Rings

Materials

Diamond, Pink Sapphire, Sapphire, Platinum

Vintage Platinum 6.4ct Pear Marquise Diamond Large Snowflake Spray Stud Earrings
Vintage Platinum 6.4ct Pear Marquise Diamond Large Snowflake Spray Stud Earrings

Vintage Platinum 6.4ct Pear Marquise Diamond Large Snowflake Spray Stud Earrings

Located in Montclair, NJ

Total Carat Weight: 6.40 (approx.) Material: Solid .900 Platinum Weight: 9.71 Grams Backing: Posts w/ Sturdy Butterfly Closures (Pierced ears are required.)

Category

Vintage 1960s Stud Earrings

Materials

Diamond, Platinum

GIA Certified 10.99 Carat Oval Sapphire Diamond Platinum Engagement Ring
GIA Certified 10.99 Carat Oval Sapphire Diamond Platinum Engagement Ring

GIA Certified 10.99 Carat Oval Sapphire Diamond Platinum Engagement Ring

Located in Stamford, CT

Certified by the GIA as simple heat only. 1 oval cabochon blue sapphire, approx. 10.99cts GIA Certificate # 2221814628 10 round brilliant cut diamonds, H-I VS SI approx. .27cts Siz...

Category

Mid-20th Century Engagement Rings

Materials

Diamond, Sapphire, Blue Sapphire, Platinum

Platinum 1.55ct Oval Bezel Sapphire Solitaire Brushed Finish Low Profile Ring
Platinum 1.55ct Oval Bezel Sapphire Solitaire Brushed Finish Low Profile Ring

Platinum 1.55ct Oval Bezel Sapphire Solitaire Brushed Finish Low Profile Ring

Located in Montclair, NJ

--Stone(s):-- (1) Natural Genuine Sapphire - Oval Cut - Bezel Set - Very Nice Blue Color - 1.55ct (Exact-certified) ** See Certification Details Below for Complete Info ** Material:...

Category

21st Century and Contemporary American Solitaire Rings

Materials

Sapphire, Platinum

GIA Certifie3.19 Carat Blue Sapphire Diamond Platinum Engagement Ring
GIA Certifie3.19 Carat Blue Sapphire Diamond Platinum Engagement Ring

GIA Certifie3.19 Carat Blue Sapphire Diamond Platinum Engagement Ring

Located in Stamford, CT

The center sapphire is GIA certified natural color simple heat only, set in a platinum setting with baguette and round accent diamonds. 1 oval cornflower blue Sapphire, approx. tot...

Category

Late 20th Century Engagement Rings

Materials

Blue Sapphire, Diamond, Sapphire, Platinum

Art Deco Platinum 1.25ctw Diamond Green Stones Unique Shield Dinner Ring
Art Deco Platinum 1.25ctw Diamond Green Stones Unique Shield Dinner Ring

Art Deco Platinum 1.25ctw Diamond Green Stones Unique Shield Dinner Ring

Located in Montclair, NJ

–Stone(s)– Natural Genuine Diamond - 34 Old European Cut , 1 Marquise & 2 Baguette Cut- Pave & Bezel Set - Nice Brilliant White Diamonds - 1.25ctw (approx.) (12) Green Stones - Calib...

Category

Antique 19th Century Art Deco Cocktail Rings

Materials

Diamond, Platinum

Solid Platinum GIA 13.17ctw Burma Oval Lavender Jade & Diamond Statement Ring
Solid Platinum GIA 13.17ctw Burma Oval Lavender Jade & Diamond Statement Ring

Solid Platinum GIA 13.17ctw Burma Oval Lavender Jade & Diamond Statement Ring

Located in Montclair, NJ

.) - 12.90ct (exact. stamped)** See Certification Details Below for Complete Info ** (6) Natural Genuine Diamonds - Princess Cut - Channel Set - G/H Color - VS2-SI2 Clarity - 0.27ctw...

Category

21st Century and Contemporary Cocktail Rings

Materials

Diamond, Jade, Platinum

Fred Leighton 4.42 Carat Pear Cut Briolette Diamond Platinum Dangle Earrings
Fred Leighton 4.42 Carat Pear Cut Briolette Diamond Platinum Dangle Earrings

Fred Leighton 4.42 Carat Pear Cut Briolette Diamond Platinum Dangle Earrings

By Fred Leighton

Located in Stamford, CT

Truly a dazzling display of detail, brilliance and elegance. 4 pear shaped rose cut diamonds, 7 x 5mm to 7.5 x 5.5mm approx. total weight: 1.98ct 2 brilliant cut diamonds, approx....

Category

Late 20th Century Chandelier Earrings

Materials

Diamond, Platinum

Platinum High Quality 1.12ctw Alternating Ruby & Diamond Low Profile Band Ring
Platinum High Quality 1.12ctw Alternating Ruby & Diamond Low Profile Band Ring

Platinum High Quality 1.12ctw Alternating Ruby & Diamond Low Profile Band Ring

Located in Montclair, NJ

Total Carat Weight: 1.12 (approx.) Material: Solid .900+ Platinum Weight: 3.79 Grams Ring Size: 10.0 (Fitted on a finger.

Category

21st Century and Contemporary Band Rings

Materials

Diamond, Ruby, Platinum

New Platinum 8.80ctw Fiery F VS2 Round Brilliant Diamond Line Tennis Bracelet
New Platinum 8.80ctw Fiery F VS2 Round Brilliant Diamond Line Tennis Bracelet

New Platinum 8.80ctw Fiery F VS2 Round Brilliant Diamond Line Tennis Bracelet

Located in Montclair, NJ

--Stone(s):-- (40) Natural Genuine Diamonds - Round Brilliant Cut - Prong Set - Fiery - F/G Color - VS2 Clarity - 8.80ctw (exact) Material: Solid .900+ Platinum Weight: 27.64 Grams...

Category

21st Century and Contemporary American Tennis Bracelets

Materials

Diamond, Platinum

Vintage Platinum 0.73ctw Old European Prong Diamond Solitaire Engagement Ring
Vintage Platinum 0.73ctw Old European Prong Diamond Solitaire Engagement Ring

Vintage Platinum 0.73ctw Old European Prong Diamond Solitaire Engagement Ring

Located in Montclair, NJ

Total Carat Weight: 0.73 (approx.) Material: Solid .900 Platinum Weight: 4.40 Grams Ring Size: 6.0 (We can custom size this ring.

Category

Vintage 1940s Art Deco Engagement Rings

Materials

Diamond, Platinum

Platinum GIA 6.83ctw No Heat Deep Blue Sapphire & Diamond Pendant Chain Necklace
Platinum GIA 6.83ctw No Heat Deep Blue Sapphire & Diamond Pendant Chain Necklace

Platinum GIA 6.83ctw No Heat Deep Blue Sapphire & Diamond Pendant Chain Necklace

Located in Montclair, NJ

--Stone(s):-- (1) Natural Genuine Sapphire - Large Oval Brilliant Cut - Prong Set - Gorgeous Deep Blue Color - No Heat - 5.63ct (exact) ** See Certification Details Below for Complet...

Category

21st Century and Contemporary Pendant Necklaces

Materials

Diamond, Sapphire, Platinum

EGL Certified .51 Carat Edwardian Old European Diamond Platinum Cocktail Ring
EGL Certified .51 Carat Edwardian Old European Diamond Platinum Cocktail Ring

EGL Certified .51 Carat Edwardian Old European Diamond Platinum Cocktail Ring

Located in Stamford, CT

Perfect for those who appreciate antique elegance, 1 old European cut Diamond, approx. total weight .51cts, H – I, VS2, EGL certificate # US314092201D 4 old European cut Diamonds, ...

Category

Early 20th Century Cocktail Rings

Materials

Diamond, Platinum

Classic Platinum GIA 1.5ctw Octagonal Colombian Emerald w/ Diamond Timeless Ring
Classic Platinum GIA 1.5ctw Octagonal Colombian Emerald w/ Diamond Timeless Ring

Classic Platinum GIA 1.5ctw Octagonal Colombian Emerald w/ Diamond Timeless Ring

Located in Montclair, NJ

--Stone(s):-- (1) Natural Genuine Emerald - Octagonal Step Cut - Prong Set - Vivid Clean Green Color - 1.03ct (exact) ** See Certification Details Below for Complete Info ** (8) Natu...

Category

21st Century and Contemporary Cocktail Rings

Materials

Diamond, Emerald, Platinum

Platinum GIA 2.56ctw No Heat Emerald Cut Sapphire & Pave Diamond Ring
Platinum GIA 2.56ctw No Heat Emerald Cut Sapphire & Pave Diamond Ring

Platinum GIA 2.56ctw No Heat Emerald Cut Sapphire & Pave Diamond Ring

Located in Montclair, NJ

Total Carat Weight: 2.56 (approx.) Material: Solid .900+ Platinum Weight: 7.30 Grams Ring Size: 6.5 (Fitted on a finger.

Category

21st Century and Contemporary Cocktail Rings

Materials

Diamond, Sapphire, Platinum

Vintage Tiffany & Co. Platinum GIA 1.52ct Oval Diamond Solitaire Engagement Ring
Vintage Tiffany & Co. Platinum GIA 1.52ct Oval Diamond Solitaire Engagement Ring

Vintage Tiffany & Co. Platinum GIA 1.52ct Oval Diamond Solitaire Engagement Ring

By Tiffany & Co.

Located in Montclair, NJ

--Stone(s):-- (1) Natural Genuine Diamond - Oval Brilliant Cut - Prong Set - H Color - VVS1 Clarity - 1.52ct (exact - certified) ** See Certification Details Below for Complete Info ...

Category

21st Century and Contemporary Solitaire Rings

Materials

Diamond, Platinum

Vintage Platinum GIA 1.02ctw Oval Green Purple Brazil Alexandrite Diamond Ring
Vintage Platinum GIA 1.02ctw Oval Green Purple Brazil Alexandrite Diamond Ring

Vintage Platinum GIA 1.02ctw Oval Green Purple Brazil Alexandrite Diamond Ring

Located in Montclair, NJ

--Stone(s):-- (10) Natural Genuine Alexandrite Chrysoberyl - Oval Brilliant Cut - Prong Set - Green - Blue Changing to Reddish Purple Color (Desirable color change) - 0.64ct (exact -...

Category

20th Century Engagement Rings

Materials

Alexandrite, Diamond, Platinum

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Platinum 900 For Sale on 1stDibs

Find the exact platinum 900 you’re shopping for in the variety available on 1stDibs. Every item for sale was constructed with extraordinary care, often using Platinum, Gold and 18k Gold. Our collection of these items for sale includes 38 vintage editions and 77 modern creations to choose from as well. Finding the perfect platinum 900 may mean sifting through those created during different time periods — you can find an early version that dates to the 20th Century and a newer variation that were made as recently as the 21st Century. There have been many well-made iterations of the classic platinum 900 over the years, but those made by Malpani Jewels, SHIHARA and Spark Creations are often thought to be among the most beautiful. See these pages for a round cut iteration of this accessory, while there are also oval cut cut and marquise cut cut versions available here, too. Finding a platinum 900 for sale for women should be easy, but there are 55 pieces available to browse for unisex as well as men, too.

How Much is a Platinum 900?

Prices for a platinum 900 can differ depending upon size, time period and other attributes — at 1stDibs, these accessories begin at $600 and can go as high as $38,000, while this accessory, on average, fetches $2,575.

The Legacy of Diamond in Jewelry Design

Antique diamond rings, diamond tiaras and dazzling vintage diamond earrings are on the wish lists of every lover of fine jewelry. And diamonds and diamond jewelry are primarily associated with storybook engagements and red-carpet grand entrances — indeed, this ultra-cherished gemstone has a dramatic history on its hands.

From “A Diamond Is Forever” to “Diamonds Are a Girl’s Best Friend,” pop culture has ingrained in our minds that diamonds are the most desired, the most lasting and the most valuable gemstone. But what makes the diamond so special? Each stone — whether it’s rubies, sapphires or another stone — is unique and important in its own right. April babies might claim diamonds for themselves, but just about everyone wants this kind of sparkle in their lives!

There are several factors that set diamonds apart from other stones, and these points are important to our gem education.

Diamonds are minerals. They are made up of almost entirely of carbon (carbon comprises 99.95 percent; the remainder consists of various trace elements). Diamonds are the hardest gemstones, ranking number 10 on the Mohs Hardness Scale. Even its name, diamond, is rooted in the Greek adamas, or unconquerable. The only object that can scratch a diamond is another diamond. Diamonds are formed deep within the earth at very high temperatures (1,652–2,372 degrees Fahrenheit at depths between 90 and 120 miles beneath the earth’s surface) and are carried up by volcanic activity. Diamonds are quite rare, according to the Gemological Institute of America, and only 30 percent of all the diamonds mined in the world are gem quality.

In the 1950s, the Gemological Institute of America developed the 4Cs grading system to classify diamonds: clarity, color, cut and carat weight. Not all diamonds are created equal (there are diamonds, and then there are diamonds). The value of the diamond depends on the clarity (flawless diamonds are very rare but a diamond's value decreases if there are many blemishes or inclusions), color (the less color the higher the grade), cut (how the diamond’s facets catch the light, certain cuts of diamonds show off the stone better than others) and carat weight (the bigger, the better).

When you start shopping for a diamond engagement ring, always prioritize the cut, which plays the largest role in the diamond's beauty (taking the time to clean your diamond ring at least every six months or so plays a role in maintaining said beauty). And on 1stDibs, a range of buying guides can be found for those in the market for antique engagement rings, vintage engagement rings or Art Deco engagement rings. 

Shop antique and vintage diamond rings, diamond necklaces and other extraordinary diamond jewelry on 1stDibs.