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Trilogy 3 Diamond Drop Necklace in Platinum
Trilogy 3 Diamond Drop Necklace in Platinum

Trilogy 3 Diamond Drop Necklace in Platinum

Located in Honolulu, HI

Please see all photos for details, feel free to ask all questions before bidding. 100% Authentic Roberto Coin Item Specifications: Style: Diamond Pendant Chain Metal: 850 and 900...

Category

Mid-20th Century Unknown Modern Pendant Necklaces

Materials

Diamond, Platinum

Mid-Century Platinum, Pearl, Emerald, & Diamond Cocktail Ring
Mid-Century Platinum, Pearl, Emerald, & Diamond Cocktail Ring

Mid-Century Platinum, Pearl, Emerald, & Diamond Cocktail Ring

Located in Philadelphia, PA

Marks: Marked to the shank for 046 / 007 / 900 PT Fineness: Marked 900 for platinum fineness.

Category

Mid-20th Century Modern Cocktail Rings

Materials

Diamond, Emerald, Pearl, Platinum

Platinum 1ctw Pave Fiery Diamond Eternity Wedding Stack Band Ring
Platinum 1ctw Pave Fiery Diamond Eternity Wedding Stack Band Ring

Platinum 1ctw Pave Fiery Diamond Eternity Wedding Stack Band Ring

Located in Montclair, NJ

--Stone(s):-- (26) Natural Genuine Diamonds - Round Brilliant Cut - Pave Set - Nice Fiery White Brilliant Diamonds Total Carat Weight: 1.0 (approx.) Material: Solid .900+ Platinum W...

Category

21st Century and Contemporary Band Rings

Materials

Diamond, Platinum

.30 Carat Sapphire Diamond Platinum Engagement Ring
.30 Carat Sapphire Diamond Platinum Engagement Ring

.30 Carat Sapphire Diamond Platinum Engagement Ring

Located in Stamford, CT

1940's designed sapphire diamond ring. 1 round .30cts round sapphire setting platinum with 18 sing cut accent diamonds. 1 round blue sapphire, approx. .30cts 18 single cut diamonds...

Category

Early 20th Century Engagement Rings

Materials

Diamond, Sapphire, Platinum

Michael B Platinum Marquise Diamond Halo Pendant Necklace 2.25ctw
Michael B Platinum Marquise Diamond Halo Pendant Necklace 2.25ctw

Michael B Platinum Marquise Diamond Halo Pendant Necklace 2.25ctw

Located in Newport Beach, CA

We are pleased to present this elegant Michael B marquise diamond pendant necklace, a refined and eye-catching design that beautifully combines classic shape with modern brilliance. ...

Category

2010s American Contemporary Pendant Necklaces

Materials

Diamond, Platinum

Antique Art Deco Ca. 1923 Tiffany & Co. Platinum Classic Wedding Band Ring
Antique Art Deco Ca. 1923 Tiffany & Co. Platinum Classic Wedding Band Ring

Antique Art Deco Ca. 1923 Tiffany & Co. Platinum Classic Wedding Band Ring

By Tiffany & Co.

Located in Montclair, NJ

Material: Solid .950 Platinum (Stamped) .900+ Tested Weight: 2.28 Grams Ring Size: 5.5 (Fitted on a finger, can not be sized) Ring Width: 1.69mm (1.71") Ring Height: 1.35mm rise off ...

Category

21st Century and Contemporary Wedding Rings

Materials

Platinum

Solid Platinum 1ctw Marquise Sapphire Baguette & Round Diamond Frame Ring
Solid Platinum 1ctw Marquise Sapphire Baguette & Round Diamond Frame Ring

Solid Platinum 1ctw Marquise Sapphire Baguette & Round Diamond Frame Ring

Located in Montclair, NJ

--Stone(s):-- (1) Natural Genuine Sapphire - Marquise Cut - Prong Set - Brilliant Blue Color- 7.4x4.3mm - 0.69ct (exact) Natural Genuine Diamonds - 10 Round Brilliant & 2 Baguette C...

Category

21st Century and Contemporary Cocktail Rings

Materials

Diamond, Sapphire, Platinum

Platinum 0.50ctw Bar Set Alternating Round & Baguette Diamond Band Ring
Platinum 0.50ctw Bar Set Alternating Round & Baguette Diamond Band Ring

Platinum 0.50ctw Bar Set Alternating Round & Baguette Diamond Band Ring

Located in Montclair, NJ

–Stone(s): – (7) Natural Genuine Diamonds - 4 Round Brilliant & 3 Baguette Cut - Channel Bar Set - E/F Color - VVS1-VS1 clarity - 0.50ctw (approx.) Material: Solid .900+ Platinum (t...

Category

21st Century and Contemporary Band Rings

Materials

Diamond, Platinum

Vintage Retro Platinum 27ct Aquamarine and Sapphire Cocktail Ring
Vintage Retro Platinum 27ct Aquamarine and Sapphire Cocktail Ring

Vintage Retro Platinum 27ct Aquamarine and Sapphire Cocktail Ring

Located in New York, NY

Weight: 17.4 Grams Primary Stone: 27.20ct Aquamarine Secondary Stone: 2.40ctw Sapphire Measurements: 25.0 x 19.6 x 13.0 Size: 6.5 Hallmark: 10% Irid Plat  Metal: 900 Platinum Ite...

Category

Mid-20th Century Retro Cocktail Rings

Materials

Aquamarine, Sapphire, Platinum

1.52ctw Round Diamond Engagement Ring Platinum Size 7.25 GIA
1.52ctw Round Diamond Engagement Ring Platinum Size 7.25 GIA

1.52ctw Round Diamond Engagement Ring Platinum Size 7.25 GIA

Located in McLeansville, NC

Gemstone Information: - Natural Diamond - center Carats - 1.41ct Cut - Round Brilliant Color - I Clarity - SI2 GIA - 5231594276 - Natural Diamonds - accents Total Carats - 0.03ctw ...

Category

21st Century and Contemporary Engagement Rings

Materials

Diamond, Platinum

1.52ct Natural Princess-Cut Diamond & Platinum Engagement Ring - Size 6.5
1.52ct Natural Princess-Cut Diamond & Platinum Engagement Ring - Size 6.5

1.52ct Natural Princess-Cut Diamond & Platinum Engagement Ring - Size 6.5

Located in Scottsdale, AZ

Stone Information - --------------------------------------------- Primary Stone(s): - Stone Grading: - Origin: Natural - Color: White - Clarity: SI3 - Color Grade: I - Shape: Square...

Category

21st Century and Contemporary Contemporary Engagement Rings

Materials

Diamond, Platinum

Platinum Diamond Engagement Vintage Cocktail Style Ring
Platinum Diamond Engagement Vintage Cocktail Style Ring

Platinum Diamond Engagement Vintage Cocktail Style Ring

Located in Mount Kisco, NY

Unique in style for engagement or as a coveted vintage classic cocktail ring, this stunning diamond .900 platinum ring with its asymmetrical wide band and ornamental floral inspired ...

Category

Mid-20th Century American Engagement Rings

Materials

Diamond, Platinum

Platinum VS Diamond and Sapphire Cluster Cocktail Ring 3.64CT Size 9
Platinum VS Diamond and Sapphire Cluster Cocktail Ring 3.64CT Size 9

Platinum VS Diamond and Sapphire Cluster Cocktail Ring 3.64CT Size 9

Located in Miami, FL

Crafted in 900 platinum, this ring features a captivating oval-cut blue sapphire weighing 2.23 carats at its center (treated).

Category

20th Century Cluster Rings

Materials

Diamond, Sapphire, Platinum

Tiffany & Co. Platinum .60ct Diamond Heart Lariat Pendant Twisted Chain Necklace
Tiffany & Co. Platinum .60ct Diamond Heart Lariat Pendant Twisted Chain Necklace

Tiffany & Co. Platinum .60ct Diamond Heart Lariat Pendant Twisted Chain Necklace

By Tiffany & Co.

Located in Montclair, NJ

–Stone(s)– (21) Natural Genuine Diamonds - Round Brilliant Cut - Pave & Bezel Set - Nice Brilliant White Diamonds - 0.60ctw (approx.) Material: Solid .900+ Platinum (tested) - Stam...

Category

21st Century and Contemporary Pendant Necklaces

Materials

Diamond, Platinum

Vintage Platinum 25" Long 6.8mm Wide Anchor Cable Link Heavy Chain Necklace
Vintage Platinum 25" Long 6.8mm Wide Anchor Cable Link Heavy Chain Necklace

Vintage Platinum 25" Long 6.8mm Wide Anchor Cable Link Heavy Chain Necklace

Located in Montclair, NJ

Material: Solid .900+ Platinum (tested with acid & x-ray) - no stamp Weight: 150.20 Grams Chain Type: Anchor Cable Link Length: 25 inch Width: 6.8mm (0.26") Thickness: 2mm Clasp: Box...

Category

20th Century Link Necklaces

Materials

Platinum

Vintage Platinum GIA Colombian Emeralad Diamond Cocktail Ring
Vintage Platinum GIA Colombian Emeralad Diamond Cocktail Ring

Vintage Platinum GIA Colombian Emeralad Diamond Cocktail Ring

Located in Houston, TX

Gender: Ladies Metal Type: Platinum Ring Size: 4.75 Shank Thickness: 2mm Total Weight: 4.36 grams Polished 900 Platinum polished Colombian Emerald & Diamonds Cocktail Ring.

Category

20th Century Colombian Cocktail Rings

Materials

Diamond, Emerald, Platinum

Platinum 0.68ctw Alternating Channel Pink Sapphire & Diamond Eternity Band Ring
Platinum 0.68ctw Alternating Channel Pink Sapphire & Diamond Eternity Band Ring

Platinum 0.68ctw Alternating Channel Pink Sapphire & Diamond Eternity Band Ring

Located in Montclair, NJ

Total Carat Weight: 0.68 (approx.) Material: Solid .900+ Platinum (tested) - Stamped PLAT Weight: 4.29 Grams Ring Size: 5.5 (Fitted on a finger.

Category

21st Century and Contemporary Wedding Rings

Materials

Diamond, Pink Sapphire, Platinum

Antique Art Deco Platinum Old Cuts Diamonds Filigree Brooch
Antique Art Deco Platinum Old Cuts Diamonds Filigree Brooch

Antique Art Deco Platinum Old Cuts Diamonds Filigree Brooch

Located in Houston, TX

Gender: Ladies Metal Type: Platinum Length: 2.00 inches Width: 17.95mm tapering to 4.20mm Weight: 4.79 grams Ladies filigreed vintage 900 platinum diamond brooch.

Category

Vintage 1920s Art Deco Brooches

Materials

Diamond, Platinum

Platinum Rich Royal Purple Amethyst Fancy Ribbed Flower Prongs Stud Earrings
Platinum Rich Royal Purple Amethyst Fancy Ribbed Flower Prongs Stud Earrings

Platinum Rich Royal Purple Amethyst Fancy Ribbed Flower Prongs Stud Earrings

Located in Montclair, NJ

--Stone(s):-- (2) Natural Genuine Amethysts - Round Brilliant Cut - Flower Prong Set - Deep Rich Royal Purple Color - 8.2mm each - 3.74ctw (exact) Material: Solid .900+ Platinum Wei...

Category

21st Century and Contemporary Stud Earrings

Materials

Amethyst, Platinum

Platinum 4.2ctw F VS1 Emerald Cut Diamond Eternity Anniversary Wedding Band
Platinum 4.2ctw F VS1 Emerald Cut Diamond Eternity Anniversary Wedding Band

Platinum 4.2ctw F VS1 Emerald Cut Diamond Eternity Anniversary Wedding Band

Located in Montclair, NJ

--Stone(s):-- (21) Natural Genuine Diamonds - Emerald Cut - Prong Set - F/G Color - VS1/VS2 Clarity Total Carat Weight: 4.2 (approx.) Material: Solid .900+ Platinum Weight: 4.3 Gram...

Category

21st Century and Contemporary Wedding Rings

Materials

Diamond, Platinum

Antique Art Deco Platinum 0.97ctw Marquise Diamond Halo Emerald Engagement Ring
Antique Art Deco Platinum 0.97ctw Marquise Diamond Halo Emerald Engagement Ring

Antique Art Deco Platinum 0.97ctw Marquise Diamond Halo Emerald Engagement Ring

Located in Houston, TX

Gender: Ladies Metal Type: 900 Platinum  Ring Size: 5 Width: 11.00 mm x 8.05 mm Shank: 1.40 mm Weight: 3.14 grams Ladies 900 platinum art deco (1920-1930), diamond and eme...

Category

Early 20th Century Engagement Rings

Materials

Diamond, Emerald, Platinum

Antique Art Deco Platinum Glycine 4.41tcw Diamond Handwind Ladies Watch
Antique Art Deco Platinum Glycine 4.41tcw Diamond Handwind Ladies Watch

Antique Art Deco Platinum Glycine 4.41tcw Diamond Handwind Ladies Watch

By Glycine

Located in New York, NY

Brand: Glycine Case Size: 9.0 x 36.7 Movement: Handwind Stone: 4.41tcw Diamond, Near Colorless/VS Material: 900 Platinum Size: 6" Weight: 27.9 Grams Item #: BR-1819-030426-01

Category

Early 20th Century Art Deco Wrist Watches

Materials

Diamond, Platinum

Platinum 9.09ct Long Rectangular Tourmaline Diamond Pendant Adjustable Necklace
Platinum 9.09ct Long Rectangular Tourmaline Diamond Pendant Adjustable Necklace

Platinum 9.09ct Long Rectangular Tourmaline Diamond Pendant Adjustable Necklace

Located in Montclair, NJ

–Stone(s)– (1) Natural Genuine Tourmaline - Long Rectangular Faceted Cut- Prong Set - Green Color - 20.2x8.2mm - 8.82ctw Exact (1) Natural Genuine Diamond - Round Brilliant Cut - Pro...

Category

21st Century and Contemporary Pendant Necklaces

Materials

Diamond, Tourmaline, Platinum

Platinum 1.06ctw East West Oval Channel Ruby and Diamond Band Ring
Platinum 1.06ctw East West Oval Channel Ruby and Diamond Band Ring

Platinum 1.06ctw East West Oval Channel Ruby and Diamond Band Ring

Located in Montclair, NJ

--Stone(s):-- (3) Natural Genuine Rubies - Oval Cut - Channel Set - Bright Clean Red - East West - 0.92ctw (exact) (8) Natural Genuine Diamonds - Round Brilliant Cut -Channel Set - N...

Category

21st Century and Contemporary Band Rings

Materials

Diamond, Ruby, Platinum

EGL 12.03 Carat Diamond Bezel Set Platinum Tennis Necklace
EGL 12.03 Carat Diamond Bezel Set Platinum Tennis Necklace

EGL 12.03 Carat Diamond Bezel Set Platinum Tennis Necklace

Located in Stamford, CT

EGL certified as near colorless. 98 round brilliant cut Diamonds, approx. total weight 12.03cts, G-H, SI2-I1., EGL certificate# 400200651D 900 Platinum Width at top: 5.2mm Heigh...

Category

21st Century and Contemporary Link Necklaces

Materials

Diamond, Platinum

David Webb 18K Gold, Platinum, Pearl, and Diamond Cocktail Ring
David Webb 18K Gold, Platinum, Pearl, and Diamond Cocktail Ring

David Webb 18K Gold, Platinum, Pearl, and Diamond Cocktail Ring

By David Webb

Located in Philadelphia, PA

In 18 karat yellow gold with .900 platinum elements. Set with a central 8.01mm± pearl, accented with platinum, and encrusted with 36 round brilliant cut diamonds (4.00± Ctw) to the ...

Category

20th Century Modern Cocktail Rings

Materials

Diamond, Pearl, 18k Gold, Platinum

【Sculpted Geometry】South Sea Pearl Diamond Earrings in Platinum
【Sculpted Geometry】South Sea Pearl Diamond Earrings in Platinum

【Sculpted Geometry】South Sea Pearl Diamond Earrings in Platinum

By The Pearl Vogue

Located in New York, NY

Product Information Origin Japan Material South Sea Pearl, Diamond, and Platinum Dimensions Diameter 2.5 cm Pearl Shaped: Round Size: 10-11 mm Quality: AAAA Nacre: Very Thick Color:...

Category

21st Century and Contemporary Japanese Stud Earrings

Materials

Diamond, South Sea Pearl, Platinum

Modern Baguette Cut Diamond and Platinum Line Bracelet, 11.46 Carats
Modern Baguette Cut Diamond and Platinum Line Bracelet, 11.46 Carats

Modern Baguette Cut Diamond and Platinum Line Bracelet, 11.46 Carats

Located in London, GB

A modern diamond and platinum line bracelet, channel set with a single row of baguette cut diamonds, in individually hinged links, with polished, open sides, with a box and tongue cl...

Category

21st Century and Contemporary American Modern Tennis Bracelets

Materials

Diamond, Platinum

Vintage Platinum Alternating Channel Ruby & Diamond Engraved Milgrain Band Ring
Vintage Platinum Alternating Channel Ruby & Diamond Engraved Milgrain Band Ring

Vintage Platinum Alternating Channel Ruby & Diamond Engraved Milgrain Band Ring

Located in Montclair, NJ

Total Carat Weight: 0.41 (approx.) Material: Solid .900+ Platinum Weight: 3.37 Grams Ring Size: 5.5 (Fitted on a finger, please contact us prior to purchase with sizing inquiries) ...

Category

20th Century Band Rings

Materials

Diamond, Ruby, Platinum

Platinum 2.29ctw Tsavorite Diamond Long Drop Lariat Pendant Adjustable Necklace
Platinum 2.29ctw Tsavorite Diamond Long Drop Lariat Pendant Adjustable Necklace

Platinum 2.29ctw Tsavorite Diamond Long Drop Lariat Pendant Adjustable Necklace

Located in Montclair, NJ

–Stone(s)– (2) Natural Genuine Tsavorite - Oval Cut- Bezel Set - Deep Green Color - 2.05ctw Exact (2) Natural Genuine Diamond - Marquise Cut - Prong Set - Nice Brilliant White Diamon...

Category

21st Century and Contemporary Drop Necklaces

Materials

Diamond, Tsavorite, Platinum

Classic Platinum 0.60ctw Round Pave Diamond Stackable Wedding Band Ring
Classic Platinum 0.60ctw Round Pave Diamond Stackable Wedding Band Ring

Classic Platinum 0.60ctw Round Pave Diamond Stackable Wedding Band Ring

Located in Montclair, NJ

--Stone(s):-- (12) Natural Genuine Diamonds - Round Brilliant Cut - Pave Set - G/H Color - VS2-SI2 Clarity Total Carat Weight: 0.60 (approx.) Material: Solid .900+ Platinum Weight: ...

Category

21st Century and Contemporary Wedding Rings

Materials

Diamond, Platinum

26.43 ctw Mid-Century Cabochon Burmese Sapphire & Diamond Platinum Ring
26.43 ctw Mid-Century Cabochon Burmese Sapphire & Diamond Platinum Ring

26.43 ctw Mid-Century Cabochon Burmese Sapphire & Diamond Platinum Ring

Located in Tysons, VA

Type: Cocktail Ring Era / Style: Mid-Century Metal: Platinum Metal Purity: Plat-900 Setting Style: Prong Band Style: Plain Finish: High Polish Gemstone: Natural Blue Sapphire Origin:...

Category

21st Century and Contemporary Engagement Rings

Materials

Diamond, Blue Sapphire, Platinum

Antique Edwardian Platinum .56ct Old Cut Bezel Diamond Solitaire Engagement Ring
Antique Edwardian Platinum .56ct Old Cut Bezel Diamond Solitaire Engagement Ring

Antique Edwardian Platinum .56ct Old Cut Bezel Diamond Solitaire Engagement Ring

Located in Montclair, NJ

--Stone(s):-- (1) Natural Genuine Diamond - Unique Old Round Cut w/ Unique Sparkle - Old European/Single Cut - Bezel Set - H Color - VS2 Clarity - 5.25mm - 0.56ctw (approx.) Materia...

Category

Antique 19th Century Edwardian Solitaire Rings

Materials

Diamond, Platinum

0.98ct GIA Certified Round Brilliant Platinum Diamond Engagement Ring
0.98ct GIA Certified Round Brilliant Platinum Diamond Engagement Ring

0.98ct GIA Certified Round Brilliant Platinum Diamond Engagement Ring

Located in Queens, NY

900 Platinum Diamond D Color, VVS2, Engagement Ring with GIA report, brightly polished, featuring a centered prong set round brilliant cut diamond, 0.98 carat, clarity, adorned with ...

Category

21st Century and Contemporary Modern Engagement Rings

Materials

Diamond, Platinum

5.27 Carat Emerald Cut Diamond Platinum Link Tennis Bracelet
5.27 Carat Emerald Cut Diamond Platinum Link Tennis Bracelet

5.27 Carat Emerald Cut Diamond Platinum Link Tennis Bracelet

Located in Stamford, CT

Crafted with a luxurious platinum link design and a length of 7.25 inches, this bracelet exudes a timeless sophistication, making it the perfect statement piece for any occasion. ...

Category

21st Century and Contemporary Tennis Bracelets

Materials

Diamond, Emerald, Platinum

Vintage Platinum 4.35ctw Gia Green Emerald Diamond Three Stone Cocktail Ring
Vintage Platinum 4.35ctw Gia Green Emerald Diamond Three Stone Cocktail Ring

Vintage Platinum 4.35ctw Gia Green Emerald Diamond Three Stone Cocktail Ring

Located in Houston, TX

Gender: Ladies Metal Type: 900 Platinum  Ring Size: 4.25 Width: 2.60 mm Weight: 6.79 grams Ladies 900 platinum three-stone vintage, diamond and emerald cocktail, three-stone rin...

Category

Late 20th Century Cocktail Rings

Materials

Diamond, Emerald, Platinum

Saphire Brilliant Pendant Platinum purpur violet incredible luminous Color
Saphire Brilliant Pendant Platinum purpur violet incredible luminous Color

Saphire Brilliant Pendant Platinum purpur violet incredible luminous Color

Located in Viena, Viena

again a special shade for a sapphire pendant... in the unbelievable colour bright purple violet, an oval cut fine sapphire approx. 1.0 ct in the size 7 x 5 mm, AAA+, great brilliance...

Category

2010s Italian Modern Pendant Necklaces

Materials

Diamond, Sapphire, Platinum

Antique 1.04 Carat Diamond and Platinum Solitaire Ring Circa 1920
Antique 1.04 Carat Diamond and Platinum Solitaire Ring Circa 1920

Antique 1.04 Carat Diamond and Platinum Solitaire Ring Circa 1920

Located in Jesmond, Newcastle Upon Tyne

The ring is hallmarked to the interior shank with the platinum mark (.900 PLATINUM 100 IRID). This impressive 1920s diamond ring is supplied with an IDGL diamond grading report cert...

Category

Vintage 1920s Solitaire Rings

Materials

Diamond, Platinum

Platinum 3.98ctw Oval Fiery Colorful Opal Round Diamond Accents Ring
Platinum 3.98ctw Oval Fiery Colorful Opal Round Diamond Accents Ring

Platinum 3.98ctw Oval Fiery Colorful Opal Round Diamond Accents Ring

Located in Montclair, NJ

--Stone(s):-- (1) Natural Genuine Opal - Oval Cabochon Cut - Prong Set - Very Nice Play of Colors - 13.8x9.5mm - 3.78ct (exact) (10) Natural Genuine Diamonds - Round Brilliant Cut - ...

Category

21st Century and Contemporary Cocktail Rings

Materials

Diamond, Opal, Platinum

Art Deco Diamond Platinum Engagement Ring Mined .53ct Old Mine Cut
Art Deco Diamond Platinum Engagement Ring Mined .53ct Old Mine Cut

Art Deco Diamond Platinum Engagement Ring Mined .53ct Old Mine Cut

Located in Dearborn, MI

Genuine Original Antique from 1930's Diamond Engagement Ring .53ct Old Mine Cut Featuring a Genuine Natural Mined .41ct Old Mine Cut Diamond Center 90% Platinum and 10% Iridium. T...

Category

Vintage 1930s Engagement Rings

Materials

Diamond, Platinum

Vintage Platinum 9.77ctw Gia Green Emerald Diamond Three Stone Cocktail Ring
Vintage Platinum 9.77ctw Gia Green Emerald Diamond Three Stone Cocktail Ring

Vintage Platinum 9.77ctw Gia Green Emerald Diamond Three Stone Cocktail Ring

Located in Houston, TX

Gender: Ladies Metal Type: 900 Platinum Ring Size: 7.75 Width: 1.40 mm Weight: 6.26 grams Ladies handmade 900 platinum vintage, diamond and emerald three-stone, cocktail ring wi...

Category

Late 20th Century Cocktail Rings

Materials

Diamond, Emerald, Platinum

2.52 Carat Diamond Emerald Onyx Platinum Engagement Ring
2.52 Carat Diamond Emerald Onyx Platinum Engagement Ring

2.52 Carat Diamond Emerald Onyx Platinum Engagement Ring

Located in Stamford, CT

GIA certificate #1176246655 24 square Calibré cut Onyx, 2mm 24 square Calibré cut Emeralds, 2.2mm Size 6.75 and sizable Platinum Tested: Platinum Stamped: Pt 900 9.9 grams Width at t...

Category

Vintage 1930s Engagement Rings

Materials

Diamond, Emerald, Onyx, Platinum

4.25 Carat Peridot Diamond Platinum Filigree Engagement Ring
4.25 Carat Peridot Diamond Platinum Filigree Engagement Ring

4.25 Carat Peridot Diamond Platinum Filigree Engagement Ring

Located in Stamford, CT

Peridot and diamond ring. 4.25ct European cut peridot center stone in a platinum setting with 14 round accent diamonds. circa 1940's. 1 round bright green gem Peridot, approx. total...

Category

Early 20th Century Engagement Rings

Materials

Diamond, Peridot, Platinum

Antique Platinum 1.78ct Old European Cut Diamond Three Stone Engagement Ring
Antique Platinum 1.78ct Old European Cut Diamond Three Stone Engagement Ring

Antique Platinum 1.78ct Old European Cut Diamond Three Stone Engagement Ring

Located in Houston, TX

Gender: Ladies Metal Type: Platinum Ring Size: 6 Width: 2.15 mm Weight: 7.47 grams Ladies 900 platinum three-stone antique, diamond engagement, accented, three-stone ring with a...

Category

Early 20th Century Engagement Rings

Materials

Diamond, Platinum

2ctw Diamond Engagement Ring Platinum Cathedral Band Size 6.75 GIA
2ctw Diamond Engagement Ring Platinum Cathedral Band Size 6.75 GIA

2ctw Diamond Engagement Ring Platinum Cathedral Band Size 6.75 GIA

Located in McLeansville, NC

Gemstone Information: - Natural Diamond - Carats - 1ct Cut - Rectangle Brilliant Color - I Clarity - VS1 GIA - 10813883 - Natural Diamonds - Total Carats - 0.92ctw Cut - Emerald / ...

Category

21st Century and Contemporary Engagement Rings

Materials

Diamond, Platinum

Platinum 2.85ctw High Quality Oval Rich Blue Aquamarine and Diamond Ring
Platinum 2.85ctw High Quality Oval Rich Blue Aquamarine and Diamond Ring

Platinum 2.85ctw High Quality Oval Rich Blue Aquamarine and Diamond Ring

Located in Montclair, NJ

--Stone(s):-- (1) Natural Genuine Aquamarine - Oval Cut - Prong Set - Rich Blue - High Quality - 9x6.4mm - 2.37ct (exact) (12) Natural Genuine Diamonds - Round Brilliant Cut - Prong ...

Category

21st Century and Contemporary Cocktail Rings

Materials

Aquamarine, Diamond, Platinum

Ladies Platinum 7.20ct Emerald Cut Diamond Full Eternity Wedding Band Ring
Ladies Platinum 7.20ct Emerald Cut Diamond Full Eternity Wedding Band Ring

Ladies Platinum 7.20ct Emerald Cut Diamond Full Eternity Wedding Band Ring

Located in Houston, TX

Gender: Ladies Metal Type: 900 Platinum   Ring Size: 4 Width: 6.00 mm Weight: 9.12 grams Lady's 900 platinum diamond wedding, anniversary, matching wedding, eternity, pinky band...

Category

21st Century and Contemporary Unknown Band Rings

Materials

Diamond, Platinum

Antique Art Deco Platinum Diamonds Sapphires Cocktail Link Bracelet
Antique Art Deco Platinum Diamonds Sapphires Cocktail Link Bracelet

Antique Art Deco Platinum Diamonds Sapphires Cocktail Link Bracelet

Located in Houston, TX

The metal was tested and determined to be 900 platinum. Pre-owned in excellent condition.

Category

Vintage 1920s Unknown Art Deco Link Bracelets

Materials

Diamond, Sapphire, Platinum

1939 Art Deco Slim Wedding Anniversary Platinum Band Ring
1939 Art Deco Slim Wedding Anniversary Platinum Band Ring

1939 Art Deco Slim Wedding Anniversary Platinum Band Ring

Located in New York, NY

Ring Details: Size: 5 1/4, cannot be resized without interrupting the pattern Width: 2.15 millimeter Hight 1.63mm Metal: Platinum Weight: 2.76 grams Hallmark: 900 PLAT, 100 IRID, the...

Category

Vintage 1930s Art Deco Wedding Rings

Materials

Platinum

Vintage Style Diamond And Platinum Floral Clip Earrings, 4.12 Carats
Vintage Style Diamond And Platinum Floral Clip Earrings, 4.12 Carats

Vintage Style Diamond And Platinum Floral Clip Earrings, 4.12 Carats

Located in London, GB

A pair of diamond vintage style flower spray clip-on earrings, featuring four flower clusters, with round brilliant-cut diamonds, the centre of each in a rub over setting, with the p...

Category

Early 2000s American Retro Clip-on Earrings

Materials

Diamond, Platinum

Vintage Platinum 3.40ctw French Cut Channel Set Diamond Eternity Band Ring sz6.5
Vintage Platinum 3.40ctw French Cut Channel Set Diamond Eternity Band Ring sz6.5

Vintage Platinum 3.40ctw French Cut Channel Set Diamond Eternity Band Ring sz6.5

Located in Montclair, NJ

--Stone(s):-- (27) Natural Genuine Diamonds - French Cut - Channel Set - H/I Color - VS1-SI1 Clarity Total Carat Weight: 3.40 (approx.) Material: Solid .900+ Platinum Weight: 4.70 G...

Category

20th Century Wedding Rings

Materials

Diamond, Platinum

Ladies Antique Art Deco Platinum 0.66ct Old European Cut Diamond Band Ring
Ladies Antique Art Deco Platinum 0.66ct Old European Cut Diamond Band Ring

Ladies Antique Art Deco Platinum 0.66ct Old European Cut Diamond Band Ring

Located in Houston, TX

Gender: Ladies Metal Type: 900 Platinum  Ring Size: 5.25 Width: 1.70 mm Weight: 2.98 grams Ladies handmade 900 platinum five-across, diamond wedding, anniversary band with a hal...

Category

Early 20th Century Band Rings

Materials

Diamond, Platinum

Vintage Platinum 3ctw French Cut Channel Diamond Hand Engraved Eternity Band Sz4
Vintage Platinum 3ctw French Cut Channel Diamond Hand Engraved Eternity Band Sz4

Vintage Platinum 3ctw French Cut Channel Diamond Hand Engraved Eternity Band Sz4

Located in Montclair, NJ

--Stone(s):-- (24) Natural Genuine Diamonds - French Cut - Channel Set - H/I Color - VS1/VS2 Clarity Total Carat Weight: 3.0 (approx.) Material: Solid .900+ Platinum Weight: 4.08 Gr...

Category

20th Century Wedding Rings

Materials

Diamond, Platinum

Vintage Platinum Gia Cambodia No Heat Sapphire Diamond Cocktail Ring
Vintage Platinum Gia Cambodia No Heat Sapphire Diamond Cocktail Ring

Vintage Platinum Gia Cambodia No Heat Sapphire Diamond Cocktail Ring

Located in Houston, TX

Gender: Ladies Metal Type: 900 Platinum Size: 5.5 Width: 1.55mm Weight: 3.71 grams Lady's handmade 900 platinum vintage, diamond and sapphire engagement, cocktail ring with a h...

Category

Late 20th Century Unknown Cocktail Rings

Materials

Diamond, Sapphire, Platinum

0.8ct Natural Round & Marquise Diamond Engagement Ring in Platinum - Size 6
0.8ct Natural Round & Marquise Diamond Engagement Ring in Platinum - Size 6

0.8ct Natural Round & Marquise Diamond Engagement Ring in Platinum - Size 6

Located in Scottsdale, AZ

Stone Information - --------------------------------------------- Primary Stone(s): - Stone Grading: - Origin: Natural - Color: White - Clarity: VS2 - Color Grade: G - Shape: Round ...

Category

21st Century and Contemporary Contemporary Engagement Rings

Materials

Diamond, Platinum

Vintage Platinum 4.70ctw Baguette Blue Sapphire & Diamond Domed Bombe Ring
Vintage Platinum 4.70ctw Baguette Blue Sapphire & Diamond Domed Bombe Ring

Vintage Platinum 4.70ctw Baguette Blue Sapphire & Diamond Domed Bombe Ring

Located in Montclair, NJ

Total Carat Weight: 4.70 (approx.) Material: Solid .900+ Platinum Weight: 18.36 Grams Ring Size: 3.0 (Fitted on a finger.

Category

20th Century Band Rings

Materials

Diamond, Sapphire, Platinum

Vintage 2.60ctw Pink Oval Sapphire VS2 Diamond Halo Ring Platinum
Vintage 2.60ctw Pink Oval Sapphire VS2 Diamond Halo Ring Platinum

Vintage 2.60ctw Pink Oval Sapphire VS2 Diamond Halo Ring Platinum

Located in McLeansville, NC

Gem: Natural Sapphire - 2 Carats, Oval Brilliant Cut, Pink Color, Heat Treatment - Natural Diamonds - 0.60 Total Carats, VS2 Clarity - Round - 0.20 Total Carats, Round Brilliant Cut...

Category

2010s Fashion Rings

Materials

Diamond, Sapphire, Platinum

Vintage Platinum High Quality 4.35ctw Opal & Diamond Halo Classic Ring
Vintage Platinum High Quality 4.35ctw Opal & Diamond Halo Classic Ring

Vintage Platinum High Quality 4.35ctw Opal & Diamond Halo Classic Ring

Located in Montclair, NJ

Total Carat Weight: 4.35 (approx.) Material: Solid .900+ Platinum w/ Yellow Gold Prongs Weight: 5.58 Grams Ring Size: 7.5 (Fitted on a finger.

Category

20th Century Cocktail Rings

Materials

Diamond, Opal, Gold, Yellow Gold, Platinum

Platinum Square Cut Alternating Sapphire & Diamond 5 Stone Channel Band Ring
Platinum Square Cut Alternating Sapphire & Diamond 5 Stone Channel Band Ring

Platinum Square Cut Alternating Sapphire & Diamond 5 Stone Channel Band Ring

Located in Montclair, NJ

--Stone(s):-- (3) Natural Genuine Sapphire - Square Cut - Channel Set - Royal Blue Color - 0.48ctw (exact) (2) Natural Genuine Diamonds - Square Princess Cut - Channel Set - H/I Colo...

Category

21st Century and Contemporary Band Rings

Materials

Diamond, Sapphire, Platinum

Platinum 4.68ctw GIA Ceylon No Heat Sapphire Diamond Classic Contemporary Ring
Platinum 4.68ctw GIA Ceylon No Heat Sapphire Diamond Classic Contemporary Ring

Platinum 4.68ctw GIA Ceylon No Heat Sapphire Diamond Classic Contemporary Ring

Located in Montclair, NJ

--Stone(s):-- (1) Natural Genuine Sapphire - Oval Cut - Prong Set - Gorgeous Blue Color - Cleanish - Ceylon- No Heat - 4.12ct (exact) ** See Certification Details Below for Complete ...

Category

20th Century Cocktail Rings

Materials

Diamond, Sapphire, 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.