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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

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

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

Peter Suchy .93ct Pink Sapphire Octagonal Engagement Ring, Platinum
Peter Suchy .93ct Pink Sapphire Octagonal Engagement Ring, Platinum

Peter Suchy .93ct Pink Sapphire Octagonal Engagement Ring, Platinum

By Peter Suchy

Located in Stamford, CT

GIA Certificate # 618368628 36 round brilliant cut H-I VS-SI diamonds, Approximate .46 carats Size: 6 and sizable Platinum Stamped: PT 900 5.5 Grams Width at top: 6.0mm Height at t...

Category

21st Century and Contemporary Engagement Rings

Materials

Diamond, Sapphire, Pink Sapphire, Platinum

Modern Three Stone Brilliant Cut Diamond and Platinum Ring, 1.60 Carats
Modern Three Stone Brilliant Cut Diamond and Platinum Ring, 1.60 Carats

Modern Three Stone Brilliant Cut Diamond and Platinum Ring, 1.60 Carats

Located in London, GB

A modern three stone diamond ring, set with three round brilliant-cut diamonds, with an estimated total weight of 1.60 carats, in claw settings, mounted in platinum (USA 900 platinum...

Category

1990s American Modern Three-Stone Rings

Materials

Diamond, Platinum

Unique Platinum Trapezoid Sapphire w/ Baguette & Round Diamond East West Ring
Unique Platinum Trapezoid Sapphire w/ Baguette & Round Diamond East West Ring

Unique Platinum Trapezoid Sapphire w/ Baguette & Round Diamond East West Ring

Located in Montclair, NJ

--Stone(s):-- (1) Natural Genuine Sapphire - Trapezoid Cut - Channel Set - Bright Royal Blue - Clean - 1.04ct (exact) (27) Natural Genuine Diamonds - 24 Round Brilliant w/ 3 Baguette...

Category

21st Century and Contemporary Cocktail Rings

Materials

Diamond, Sapphire, Platinum

Vintage Tiffany & Co. 18k Yellow Gold & Platinum Milgrain Band Ring sz 5.5
Vintage Tiffany & Co. 18k Yellow Gold & Platinum Milgrain Band Ring sz 5.5

Vintage Tiffany & Co. 18k Yellow Gold & Platinum Milgrain Band Ring sz 5.5

By Tiffany & Co.

Located in Montclair, NJ

Material: Solid 18k Yellow Gold w/ .900 Platinum - Stamped PT950 & 750 Weight: 9.86 Grams Ring Size: 5.5 ( fitted on finger, we CANNOT size this ring) Ring Width: 5.7mm (0.22")(top o...

Category

20th Century Band Rings

Materials

Gold, 18k Gold, Yellow Gold, Platinum

Vintage Platinum 4.88ctw Oval Opal & Diamond Halo Large Cocktail Ring
Vintage Platinum 4.88ctw Oval Opal & Diamond Halo Large Cocktail Ring

Vintage Platinum 4.88ctw Oval Opal & Diamond Halo Large Cocktail Ring

Located in Montclair, NJ

--Stone(s):-- (1) Natural Genuine Opal - Oval Cabochon Cut - Prong Set - White Color w/ Very Nice Play of Colors - 14.6x11.3mm / 4.41ct (exact) Numerous Natural Genuine Diamonds - Ro...

Category

20th Century Cocktail Rings

Materials

Diamond, Opal, Platinum

Platinum 0.77ctw Old European Cut Diamond 4 Prong Basket Classic Stud Earrings
Platinum 0.77ctw Old European Cut Diamond 4 Prong Basket Classic Stud Earrings

Platinum 0.77ctw Old European Cut Diamond 4 Prong Basket Classic Stud Earrings

Located in Montclair, NJ

--Stone(s):-- (2) Natural Genuine Diamonds - Old European Cut - 4-Prong Set - G/H Color - VS2/SI1 Clarity Total Carat Weight: 0.77 (exact) Material: Solid .900 Platinum w/ Solid .95...

Category

21st Century and Contemporary Stud Earrings

Materials

Diamond, Platinum

Vintage Platinum 2.31ctw GIA Oval Burma Ruby Half Moon Diamond Sides Ring
Vintage Platinum 2.31ctw GIA Oval Burma Ruby Half Moon Diamond Sides Ring

Vintage Platinum 2.31ctw GIA Oval Burma Ruby Half Moon Diamond Sides Ring

Located in Montclair, NJ

Total Carat Weight: 2.31 (approx.) Material: Solid .900 Platinum - Stamped Pt900 Weight: 5.19 Grams Ring Size: 6.5 (Fitted on a finger, please contact us prior to purchase with sizi...

Category

20th Century Three-Stone Rings

Materials

Diamond, Ruby, Platinum

Platinum 2.89ctw Baguette Sapphire & Diamond 3 Row Wide Wavy Chevron Band Ring
Platinum 2.89ctw Baguette Sapphire & Diamond 3 Row Wide Wavy Chevron Band Ring

Platinum 2.89ctw Baguette Sapphire & Diamond 3 Row Wide Wavy Chevron Band Ring

Located in Montclair, NJ

–Stone(s)– (17) Natural Genuine Diamonds - Baguette Cut - Channel Set -White Fiery Brilliant Diamonds - 0.68ctw (exact) (22) Natural Genuine Sapphires - Baguette Cut - Channel Set - ...

Category

21st Century and Contemporary Band Rings

Materials

Diamond, Sapphire, Platinum

Peter Suchy .33 Carat Diamond Platinum Wedding Band Ring
Peter Suchy .33 Carat Diamond Platinum Wedding Band Ring

Peter Suchy .33 Carat Diamond Platinum Wedding Band Ring

By Peter Suchy

Located in Stamford, CT

Designed and crafted in the Peter Suchy workshop 18 round brilliant cut diamonds, G VS approx. .25cts 5 straight cut baguette diamonds, G VS approx. .8cts Size 6.5 and sizable Pla...

Category

21st Century and Contemporary Band Rings

Materials

Diamond, Platinum

Platinum GIA Emerald Cut E VVS1 Diamond Elongated East West Bezel Solitaire Ring
Platinum GIA Emerald Cut E VVS1 Diamond Elongated East West Bezel Solitaire Ring

Platinum GIA Emerald Cut E VVS1 Diamond Elongated East West Bezel Solitaire Ring

Located in Montclair, NJ

--Stone(s):-- (1) Natural Genuine Diamond - Emerald Cut - Bezel Set - E Color - VVS1 Clarity - 1.31ctw (exact) Material: Platinum Stamped - Tests .900+ Weight: 4.3 Grams Ring Size: ...

Category

21st Century and Contemporary Solitaire Rings

Materials

Diamond, Platinum

Platinum 5.2ctw High Quality Pink Tourmaline & Diamond Split Shank Ring
Platinum 5.2ctw High Quality Pink Tourmaline & Diamond Split Shank Ring

Platinum 5.2ctw High Quality Pink Tourmaline & Diamond Split Shank Ring

Located in Montclair, NJ

--Stone(s):-- (1) Natural Genuine Tourmaline - Cushion Checkerboard Cut - Prong Set - Brilliant Very Nice Pink Color - 11.1x8.9mm - 4.94ct (exact) (28) Natural Genuine Diamonds - Rou...

Category

21st Century and Contemporary Cocktail Rings

Materials

Diamond, Tourmaline, Platinum

Antique Art Deco 1.20ct Sapphire and 0.96ct Diamond Platinum Cocktail Ring
Antique Art Deco 1.20ct Sapphire and 0.96ct Diamond Platinum Cocktail Ring

Antique Art Deco 1.20ct Sapphire and 0.96ct Diamond Platinum Cocktail Ring

Located in Jesmond, Newcastle Upon Tyne

The ring is hallmarked to the interior of the shank with the maker's mark 'Pm' and the platinum fineness mark ( 900 ). This antique Art Deco cocktail ring is supplied with an indepe...

Category

20th Century Unknown Art Deco Cocktail Rings

Materials

Diamond, Sapphire, Platinum

Vintage Three Stone Diamond and Platinum Ring, circa 1970
Vintage Three Stone Diamond and Platinum Ring, circa 1970

Vintage Three Stone Diamond and Platinum Ring, circa 1970

Located in London, GB

A vintage three stone diamond ring, set with a 0.59 carat, F colour, I1 clarity, round brilliant-cut diamond, with a round brilliant-cut diamond set either side, each weighing 0.28 c...

Category

Vintage 1970s American Retro Engagement Rings

Materials

Diamond, Platinum

Platinum Diamond Eternity Band Ring Size 6-3/4
Platinum Diamond Eternity Band Ring Size 6-3/4

Platinum Diamond Eternity Band Ring Size 6-3/4

Located in Mount Kisco, NY

In ring size 6-3/4. Crafted in .900 Platinum. Perfect as an anniversary gift, wedding band or just because.

Category

Late 20th Century American Wedding Rings

Materials

Diamond, Platinum

Solid Platinum Large 10.31ctw Cabochon Moonstone w/ Diamond Sides Ring
Solid Platinum Large 10.31ctw Cabochon Moonstone w/ Diamond Sides Ring

Solid Platinum Large 10.31ctw Cabochon Moonstone w/ Diamond Sides Ring

Located in Montclair, NJ

.) - 10.1ct (exact) (6) Natural Genuine Diamonds - Round Brilliant Cut - Prong Set - Nice Brilliant White Color - 0.30ctw (exact) Total Carat Weight: 10.31 (exact) Material: Solid ....

Category

21st Century and Contemporary Cocktail Rings

Materials

Diamond, Moonstone, Platinum

Platinum 4.09ctw Long Emerald Cut Aquamarine & Diamond Split Shank Ring
Platinum 4.09ctw Long Emerald Cut Aquamarine & Diamond Split Shank Ring

Platinum 4.09ctw Long Emerald Cut Aquamarine & Diamond Split Shank Ring

Located in Montclair, NJ

--Stone(s):-- (1) Natural Genuine Aquamarines - Elongated Emerald Cut - Prong Set - Nice Blue Color - 11.6x6.8mm- 3.51ct (exact, stamped) (20) Natural Genuine Diamonds - Round Brilli...

Category

21st Century and Contemporary Cocktail Rings

Materials

Aquamarine, Diamond, Platinum

Platinum 1.62 carat Ruby Ring with .98cttw of Diamonds
Platinum 1.62 carat Ruby Ring with .98cttw of Diamonds

Platinum 1.62 carat Ruby Ring with .98cttw of Diamonds

Located in Big Bend, WI

Top color natural earth mined red ruby weighing 1.62 carats set in 900 platinum. Japanese Gem Clinic Center report #120601 included.

Category

Late 20th Century Contemporary Engagement Rings

Materials

Diamond, Ruby, Platinum

Art Deco Platinum Shreve & Co 1.00tcw Diamond Hand Wind Ladies Watch
Art Deco Platinum Shreve & Co 1.00tcw Diamond Hand Wind Ladies Watch

Art Deco Platinum Shreve & Co 1.00tcw Diamond Hand Wind Ladies Watch

Located in New York, NY

Brand: Shreve & Co Case Size: 14 x 42 mm Movement: Handwind Stone: 1.00tcw Diamonds, Near Colorless/SI Case Material: 900 Platinum Band Material: Base Metal Size: 5 1/4" Weight:...

Category

Early 20th Century Art Deco Wrist Watches

Materials

Diamond, Platinum

2.97 ctw Mid-Century Burmese Ruby & Diamond Platinum Three-Stone Ring
2.97 ctw Mid-Century Burmese Ruby & Diamond Platinum Three-Stone Ring

2.97 ctw Mid-Century Burmese Ruby & Diamond Platinum Three-Stone 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 Ruby Origin: Burma (M...

Category

21st Century and Contemporary Three-Stone Rings

Materials

Diamond, Ruby, Platinum

Vintage Platinum 6.39ctw Omphacite Burma Jade & Diamond Ballerina Cocktail Ring
Vintage Platinum 6.39ctw Omphacite Burma Jade & Diamond Ballerina Cocktail Ring

Vintage Platinum 6.39ctw Omphacite Burma Jade & Diamond Ballerina Cocktail Ring

Located in Montclair, NJ

--Stone(s):-- (1) Natural Genuine Jade - Oval Cabochon Cut - Prong Set - Green Color - "A" Quality - 11.30x9.01x5.27mm - 5.0ct (exact - certified) ** See Certification Details Below ...

Category

20th Century Cocktail Rings

Materials

Diamond, Jade, Platinum

Platinum GIA 3.66ctw Cabochon Colombian Emerald & Diamond Bubble Sides Ring
Platinum GIA 3.66ctw Cabochon Colombian Emerald & Diamond Bubble Sides Ring

Platinum GIA 3.66ctw Cabochon Colombian Emerald & Diamond Bubble Sides Ring

Located in Montclair, NJ

--Stone(s):-- (1) Natural Genuine Emerald - Oval Double Cabochon Cut - Prong Set - Bright Green Color - Colombian - Clarity Enhanced F2 -2.91ct (exact) ** See Certification Details B...

Category

21st Century and Contemporary Engagement Rings

Materials

Diamond, Emerald, Platinum

Antique Art Deco Lorgnette Platinum Rose Cut Diamond Pendant Glasses Magnifier
Antique Art Deco Lorgnette Platinum Rose Cut Diamond Pendant Glasses Magnifier

Antique Art Deco Lorgnette Platinum Rose Cut Diamond Pendant Glasses Magnifier

Located in Montclair, NJ

Art Deco Lorgnette Glasses Magnification Pendant with Diamond & Hand Engraved Work --Stone(s):-- (68) Natural Genuine Diamonds - Old Rose Cut - Pave Set - Nice Brilliant White Diamo...

Category

Antique 19th Century Art Deco Pendant Necklaces

Materials

Diamond, Platinum

Vintage Platinum 5.97ct Gia Blue Sapphire Three Stone Diamond Cocktail Ring
Vintage Platinum 5.97ct Gia Blue Sapphire Three Stone Diamond Cocktail Ring

Vintage Platinum 5.97ct Gia Blue Sapphire Three Stone Diamond Cocktail Ring

Located in Houston, TX

Gender: Ladies Metal Type: 900 Platinum Ring Size: 6.5 Width: 2.15 mm Weight: 5.17 grams Lady's handmade polished 900 Platinum vintage, diamond and sapphire engagement, cocktail...

Category

Late 20th Century Unknown Cocktail Rings

Materials

Diamond, Sapphire, Platinum

Antique Art Deco Platinum Sectioned Engraved Eternity Band Ring Size 6.5
Antique Art Deco Platinum Sectioned Engraved Eternity Band Ring Size 6.5

Antique Art Deco Platinum Sectioned Engraved Eternity Band Ring Size 6.5

Located in Montclair, NJ

Material: Solid .900+ Platinum Weight: 3.22 Grams Ring Size: 6.5 ( fitted on finger, can not be sized) Ring Width: 2.7mm (0.10") Ring Height: 1.1mm (rise off finger) Condition: Ant...

Category

Vintage 1920s Art Deco Wedding Rings

Materials

Platinum

GIA Certified .87 Carat Pink Sapphire Platinum Engagement Ring
GIA Certified .87 Carat Pink Sapphire Platinum Engagement Ring

GIA Certified .87 Carat Pink Sapphire Platinum Engagement Ring

Located in Stamford, CT

GIA certified oval natural light pink/purple center sapphire with two trilliant cut side diamonds, set in a three-stone platinum setting marked NK. We are not familiar with this make...

Category

21st Century and Contemporary Engagement Rings

Materials

Diamond, Pink Sapphire, Sapphire, Platinum

Platinum 1.77ctw GIA Montana Sapphire & Diamond Engagement Wedding Band Ring Set
Platinum 1.77ctw GIA Montana Sapphire & Diamond Engagement Wedding Band Ring Set

Platinum 1.77ctw GIA Montana Sapphire & Diamond Engagement Wedding Band Ring Set

Located in Montclair, NJ

Total Carat Weight: 1.77 (approx.) Material: Solid .900+ Platinum (tested) - Stamped Pt900 Weight: 10.48 Grams (total for both rings) Ring Size: 7.0 (Fitted on a finger.

Category

21st Century and Contemporary Engagement Rings

Materials

Diamond, Sapphire, Platinum

Antique Platinum Old Single Cut Diamond 7 Stone Pave Band Ring
Antique Platinum Old Single Cut Diamond 7 Stone Pave Band Ring

Antique Platinum Old Single Cut Diamond 7 Stone Pave Band Ring

Located in Montclair, NJ

--Stone(s):-- (7) Natural Genuine Diamonds - Old Single Cut - Pave Set - Nice Brilliant White Diamonds Total Carat Weight: 0.10 (approx.) Material: Solid .900 Platinum Weight: 2.05 ...

Category

Antique 19th Century Band Rings

Materials

Diamond, Platinum

Antique Platinum 1.57ct Old European Cut Diamond Accented Engagement Ring
Antique Platinum 1.57ct Old European Cut Diamond Accented Engagement Ring

Antique Platinum 1.57ct Old European Cut Diamond Accented Engagement Ring

Located in Houston, TX

The metal was tested and determined to be platinum. Engraved with "900 PLAT IRID". In excellent condition.

Category

21st Century and Contemporary Unknown Engagement Rings

Materials

Diamond, Platinum

9.51 ctw No-Heat Pear-Shaped Blue Sapphire Ring in Platinum
9.51 ctw No-Heat Pear-Shaped Blue Sapphire Ring in Platinum

9.51 ctw No-Heat Pear-Shaped Blue Sapphire Ring in Platinum

By Unbranded

Located in Tysons, VA

Type: Cocktail Ring Era / Style: Mid-Century Metal: Platinum Metal Purity: Plat-900 Setting Style: Prong Band Style: Plain Gemstone: Natural Blue Sapphire Carat Weight: 9.51 carats S...

Category

21st Century and Contemporary Cocktail Rings

Materials

Blue Sapphire, Platinum

Vintage 18K Yellow Gold Platinum 7.04ctw Two-Tone Bombe Cluster Cocktail Ring
Vintage 18K Yellow Gold Platinum 7.04ctw Two-Tone Bombe Cluster Cocktail Ring

Vintage 18K Yellow Gold Platinum 7.04ctw Two-Tone Bombe Cluster Cocktail Ring

Located in Houston, TX

Ladies handmade textured, 18K yellow gold and 900 platinum vintage, diamond cocktail, cluster, dinner, dress ring with a half round shank.

Category

Late 20th Century Unknown Cocktail Rings

Materials

Gold, 18k Gold, Yellow Gold, Platinum

Platinum Tahitian Pearl & Diamond Slide Pendant on 15.5" Cable Link Necklace
Platinum Tahitian Pearl & Diamond Slide Pendant on 15.5" Cable Link Necklace

Platinum Tahitian Pearl & Diamond Slide Pendant on 15.5" Cable Link Necklace

Located in Montclair, NJ

Numerous Natural Genuine Diamonds - Round Brilliant Cut - Pave Set - F/G Color - VS1/VS2 Clarity - 1.0ctw (approx.) Material: Solid .900+ Platinum Total Weight: 11.98 Grams Chain Ty...

Category

21st Century and Contemporary Pendant Necklaces

Materials

Diamond, Pearl, Platinum

1.77ct Fine Australian Black Opal & Diamond Platinum Halo Cocktail Ring
1.77ct Fine Australian Black Opal & Diamond Platinum Halo Cocktail Ring

1.77ct Fine Australian Black Opal & Diamond Platinum Halo Cocktail Ring

By Gems and Jewels UK

Located in Birmingham, GB

Ring weighs 6.63g 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

Opal, Black Opal, Diamond, Platinum

Antique French Platinum & Gold 2.20ctw Old Diamond Mosaic Pin Brooch
Antique French Platinum & Gold 2.20ctw Old Diamond Mosaic Pin Brooch

Antique French Platinum & Gold 2.20ctw Old Diamond Mosaic Pin Brooch

Located in Montclair, NJ

--Stone(s):-- Numerous Natural Genuine Diamonds - Old European & Old Rose Cut - Pave & Bezel Set - Nice Brilliant White Diamonds - 2.20ctw (approx.) Material: Solid .900 Pla...

Category

Antique 19th Century Brooches

Materials

Diamond, Gold, 18k Gold, White Gold, Platinum

Platinum 1.47ctw Oval Royal Blue Sapphire Baguette Diamond Accents Sides Ring
Platinum 1.47ctw Oval Royal Blue Sapphire Baguette Diamond Accents Sides Ring

Platinum 1.47ctw Oval Royal Blue Sapphire Baguette Diamond Accents Sides Ring

Located in Montclair, NJ

-- Stone(s) -- (2) Natural Genuine Diamond - Baguette Cut - Prong Set -Nice Brilliant White Diamonds - 0.25ctw (exact) (1) Natural Genuine Sapphire - Oval Cut - Prong Set - Royal Blu...

Category

21st Century and Contemporary Wedding Rings

Materials

Diamond, Sapphire, Platinum

Classic Platinum 2ctw Round Cut Diamond Wedding Stack Eternity Band Ring
Classic Platinum 2ctw Round Cut Diamond Wedding Stack Eternity Band Ring

Classic Platinum 2ctw Round Cut Diamond Wedding Stack Eternity Band Ring

Located in Montclair, NJ

--Stone(s):-- (20) Natural Genuine Diamonds - Round Brilliant Cut - Shared Prong Set - G/H Color - SI1/SI2 Clarity - 2.0ctw (approx.) Material: Solid .900+ Platinum Weight: 6.25 Gra...

Category

21st Century and Contemporary Wedding Rings

Materials

Diamond, Platinum

Platinum 2.90ct Rare Ceylon Cat's Eye Purple Sapphire Collet Solitaire Ring
Platinum 2.90ct Rare Ceylon Cat's Eye Purple Sapphire Collet Solitaire Ring

Platinum 2.90ct Rare Ceylon Cat's Eye Purple Sapphire Collet Solitaire Ring

Located in Montclair, NJ

--Stone(s):-- (1) Natural Genuine Rare Cat's Eye Sapphire -Oval Cabochon Cut - Prong Set - Pinkish Purple Color - Ceylon- No Heat - 2.90ct (exact) ** See Certification Details Below ...

Category

21st Century and Contemporary American Solitaire Rings

Materials

Pink Sapphire, Platinum

Platinum GIA 10.32ctw Cabochon Cat's Eye & Diamond Large Substantial Ring
Platinum GIA 10.32ctw Cabochon Cat's Eye & Diamond Large Substantial Ring

Platinum GIA 10.32ctw Cabochon Cat's Eye & Diamond Large Substantial Ring

Located in Montclair, NJ

--Stone(s):-- (1) Natural Genuine Cat's Eye - Oval Double Cabochon Cut - Claw Prong Set - Yellowish Green Color - 8.80ct (exact - stamped) ** See Certification Details Below for Comp...

Category

21st Century and Contemporary Cocktail Rings

Materials

Beryl, Diamond, Platinum

Antique Deco Diamond Eternity Ring Vintage Platinum Estate Fine Jewelry
Antique Deco Diamond Eternity Ring Vintage Platinum Estate Fine Jewelry

Antique Deco Diamond Eternity Ring Vintage Platinum Estate Fine Jewelry

Located in Torrance, CA

The band measures 2.5mm wide (0.09 inches), rising 2mm from the finger. Metal & Hallmark: 900 platinum. The ring is not hallmarked though it has tested positive for 900 platinum.

Category

Early 20th Century Unknown Art Deco Band Rings

Materials

Diamond, Platinum

18k Yellow Gold Platinum VS Round Diamond Belt Buckle Ring 0.50CT Size 6.5
18k Yellow Gold Platinum VS Round Diamond Belt Buckle Ring 0.50CT Size 6.5

18k Yellow Gold Platinum VS Round Diamond Belt Buckle Ring 0.50CT Size 6.5

Located in Miami, FL

Specifications: Metal: 18k Yellow Gold, 900 Platinum Primary Stone: 0.5CT Round Cut Diamond Total Weight: 13.64g Ring Size: 6.5 Dimensions: 0.74in L x 0.67in W x 0.19in H Key Featur...

Category

20th Century Cocktail Rings

Materials

Diamond, Yellow Gold, Platinum

Platinum Top Quality 6.12ctw Radiant Cut Large VVS2 F Diamond Eternity Band Ring
Platinum Top Quality 6.12ctw Radiant Cut Large VVS2 F Diamond Eternity Band Ring

Platinum Top Quality 6.12ctw Radiant Cut Large VVS2 F Diamond Eternity Band Ring

Located in Montclair, NJ

--Stone(s):-- (17) Natural Genuine Diamonds - Radiant Cut - Shared Prong Set - F/G Color - VVS2-VS2 Clarity Total Carat Weight: 6.12 (approx.) Material: Solid .900+ Platinum Weight:...

Category

21st Century and Contemporary Wedding Rings

Materials

Diamond, Platinum

18k Yellow Gold Platinum VS Round Diamond Belt Buckle Ring 0.50CT Size 6.5
18k Yellow Gold Platinum VS Round Diamond Belt Buckle Ring 0.50CT Size 6.5

18k Yellow Gold Platinum VS Round Diamond Belt Buckle Ring 0.50CT Size 6.5

Located in Miami, FL

Specifications: Metal: 18k Yellow Gold, 900 Platinum Primary Stone: 0.5CT Round Cut Diamond Total Weight: 13.64g Ring Size: 6.5 Dimensions: 0.74in L x 0.67in W x 0.19in H Key Featur...

Category

20th Century Cocktail Rings

Materials

Diamond, Yellow Gold, Platinum

Antique Platinum .20ctw Single Cut Channel Set Diamond Milgrain Band Ring
Antique Platinum .20ctw Single Cut Channel Set Diamond Milgrain Band Ring

Antique Platinum .20ctw Single Cut Channel Set Diamond Milgrain Band Ring

Located in Montclair, NJ

--Stone(s):-- (10) Natural Genuine Diamonds - Single Cut - Channel Set - Nice Brilliant White Color - 0.20ctw (approx.) Material: Solid .900+ Platinum Weight: 2.70 Gram Ring Size: 6...

Category

Antique 19th Century Band Rings

Materials

Diamond, Platinum

Antique Edwardian Platinum 0.75ctw Old European Cut Diamond 3 Stones Band Ring
Antique Edwardian Platinum 0.75ctw Old European Cut Diamond 3 Stones Band Ring

Antique Edwardian Platinum 0.75ctw Old European Cut Diamond 3 Stones Band Ring

Located in Montclair, NJ

--Stone(s):-- (3) Natural Genuine Diamonds - Old European Cut - Bezel/Channel Set - Nice Brilliant White Diamonds - 0.75ctw (approx.) Material: Solid 900 Platinum Weight: 2.96 Grams...

Category

Antique 19th Century Edwardian Three-Stone Rings

Materials

Diamond, Platinum

Modern Emerald 6.37 Carats, Diamond 5.05 Carats and Platinum Line Bracelet
Modern Emerald 6.37 Carats, Diamond 5.05 Carats and Platinum Line Bracelet

Modern Emerald 6.37 Carats, Diamond 5.05 Carats and Platinum Line Bracelet

Located in London, GB

A modern emerald, diamond and platinum line bracelet, with five sets of three alternating with four sets of four French-cut emeralds, with a total weight of 6.37 carats, in channel s...

Category

21st Century and Contemporary American Modern Tennis Bracelets

Materials

Diamond, Emerald, Platinum

Tiffany & Co. Platinum 0.52ctw Diamond Maltese Cross Pendant on 16" Necklace
Tiffany & Co. Platinum 0.52ctw Diamond Maltese Cross Pendant on 16" Necklace

Tiffany & Co. Platinum 0.52ctw Diamond Maltese Cross Pendant on 16" Necklace

By Tiffany & Co.

Located in Montclair, NJ

--Stone(s):-- Numerous Natural Genuine Diamonds - Round Brilliant Cut - Pave Set - VS1/VS2 Clarity - F/G Color Total Carat Weight: 0.52 (exact) Material: Solid .900+ Platinum Weight...

Category

21st Century and Contemporary Pendant Necklaces

Materials

Diamond, Platinum

1.94 Carat Basaltic Sapphire 1.07 Carat Diamond Platinum Ring Circa 1970
1.94 Carat Basaltic Sapphire 1.07 Carat Diamond Platinum Ring Circa 1970

1.94 Carat Basaltic Sapphire 1.07 Carat Diamond Platinum Ring Circa 1970

Located in Jesmond, Newcastle Upon Tyne

This interior of the shank is hallmarked with the maker's mark (KM) and platinum mark ( 900 ); this vintage ballerina ring has been independently tested using state of the art techno...

Category

Vintage 1970s Cocktail Rings

Materials

Diamond, Sapphire, Platinum

Platinum GIA 1.73ct F VVS1 Ideal Cut Diamond Classic Solitaire Engagement Ring
Platinum GIA 1.73ct F VVS1 Ideal Cut Diamond Classic Solitaire Engagement Ring

Platinum GIA 1.73ct F VVS1 Ideal Cut Diamond Classic Solitaire Engagement Ring

Located in Montclair, NJ

Knife Edge 6 Prong Set Ideal Triple Excellent F VVS1 Round Diamond Solitaire Ring --Stone(s):-- (1) Natural Genuine Diamond - Round Brilliant Cut - 6 Prong Set - F Color - VVs1 Clari...

Category

21st Century and Contemporary Engagement Rings

Materials

Diamond, Platinum

JB Star Platinum & Emerald Cut Diamond Halo Eternity Band 8.50ctw
JB Star Platinum & Emerald Cut Diamond Halo Eternity Band 8.50ctw

JB Star Platinum & Emerald Cut Diamond Halo Eternity Band 8.50ctw

By JB Star

Located in Newport Beach, CA

The total carat weight is estimated at 8.50ctw with the bezel set emerald cut diamonds ranging in color/clarity from H-I/VS-SI and the prong round brilliant cut diamonds ranging in ...

Category

2010s American Contemporary Band Rings

Materials

Diamond, Platinum

Handmade Platinum Certified Oval Sapphire & Baguette Diamond Engagement Ring
Handmade Platinum Certified Oval Sapphire & Baguette Diamond Engagement Ring

Handmade Platinum Certified Oval Sapphire & Baguette Diamond Engagement Ring

Located in Montclair, NJ

Total Carat Weight: 2.85 (approx.) Material: Solid 900 Platinum Weight: 4.47 Grams Ring Size: 6.0 (We can custom size this ring - please contact us prior to purchase for sizing inqu...

Category

1990s Engagement Rings

Materials

Diamond, Sapphire, Platinum

Platinum Oval Blue Star Sapphire Step Cut Diamond Sides Open Gallery Ring
Platinum Oval Blue Star Sapphire Step Cut Diamond Sides Open Gallery Ring

Platinum Oval Blue Star Sapphire Step Cut Diamond Sides Open Gallery Ring

Located in Montclair, NJ

--Stone(s):-- (1) Natural Genuine Star Sapphire - Oval Cabochon Cut - Claw Prong Set - Rich Transparent Blue - 10x8mm - 6.0ct (exact) (2) Natural Genuine Diamonds - Rectangular Step ...

Category

21st Century and Contemporary American Cocktail Rings

Materials

Diamond, Sapphire, Platinum

Fancy Antique Art Deco Platinum Bezel European Diamond & Sapphire Line Bracelet
Fancy Antique Art Deco Platinum Bezel European Diamond & Sapphire Line Bracelet

Fancy Antique Art Deco Platinum Bezel European Diamond & Sapphire Line Bracelet

Located in Montclair, NJ

Total Carat Weight: 4.56 (approx.) Material: Solid .900 platinum Weight: 26.57 Grams Chain Type: Rectangular Shaped Diamond & Sapphire Encrusted Links Chain Length: Will comfort...

Category

Vintage 1910s Art Deco Chain Bracelets

Materials

Diamond, Sapphire, Platinum

Platinum 3.09ct GIA Elongated Cushion Cut Diamond Solitaire Engagement Ring
Platinum 3.09ct GIA Elongated Cushion Cut Diamond Solitaire Engagement Ring

Platinum 3.09ct GIA Elongated Cushion Cut Diamond Solitaire Engagement Ring

Located in Montclair, NJ

--Stone(s):-- (1) Natural Genuine Diamond - Elongated Cushion Brilliant Cut - Double Wire Prong Set - F Color - SI2 Clarity - 3.09ct (exact - certified) ** See Certification Details ...

Category

21st Century and Contemporary Engagement Rings

Materials

Diamond, Platinum

16.56 ctw Mid-Century Cushion Padparadscha Sapphire & Diamond Platinum Ring
16.56 ctw Mid-Century Cushion Padparadscha Sapphire & Diamond Platinum Ring

16.56 ctw Mid-Century Cushion Padparadscha 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 Gemstone: Natural Padparadscha Sapphire Origin: Madagascar ...

Category

21st Century and Contemporary Cocktail Rings

Materials

Diamond, Sapphire, Pink Sapphire, Padparadscha Sapphire , Platinum

Vintage Platinum Dome Ring with 11.3mm Tahitian Pearl and Diamonds
Vintage Platinum Dome Ring with 11.3mm Tahitian Pearl and Diamonds

Vintage Platinum Dome Ring with 11.3mm Tahitian Pearl and Diamonds

Located in Brunswick, ME

Vintage exquisite estate large silver grey Tahitian pearl and diamond ring. 11.3mm natural color silver gray Tahitian, high luster and few blemishes in a platinum setting with 6 roun...

Category

21st Century and Contemporary American Art Deco Solitaire Rings

Materials

Cultured Pearl, Diamond, Pearl, Platinum

Antique Platinum & Gold GIA Colombian Emerald Diamond Ribbon Bow Pin Brooch
Antique Platinum & Gold GIA Colombian Emerald Diamond Ribbon Bow Pin Brooch

Antique Platinum & Gold GIA Colombian Emerald Diamond Ribbon Bow Pin Brooch

Located in Montclair, NJ

Total Carat Weight: 7.5 (approx.) Material: Solid .900 Platinum & 18k White Gold Pin Total Weight: 18.54 Grams Height: 46mm (1.8 in) (measuring from the top of the bow to the bottom...

Category

Early 20th Century Brooches

Materials

White Diamond, Emerald, White Gold, Platinum

EGL Certified 1.10 Carat Round Diamond Platinum Solitaire Engagement Ring
EGL Certified 1.10 Carat Round Diamond Platinum Solitaire Engagement Ring

EGL Certified 1.10 Carat Round Diamond Platinum Solitaire Engagement Ring

Located in Stamford, CT

EGL certified diamond engagement ring. 1.10ct round cut diamond center in stone. Set in a Platinum solitaire six prong setting. This diamond has faint yellow coloring that is more ex...

Category

21st Century and Contemporary Engagement Rings

Materials

Diamond, Platinum

Antique Platinum 1.0ctw GIA Certified Old European Prong Diamond Stud Earrings
Antique Platinum 1.0ctw GIA Certified Old European Prong Diamond Stud Earrings

Antique Platinum 1.0ctw GIA Certified Old European Prong Diamond Stud Earrings

Located in Montclair, NJ

--Stone(s):-- (2) Natural Genuine Diamonds - Old European & Round Brilliant Cut - Prong Set - H Color - VS2 Clarity - 1.0ctw (exact - certified) ** See Certification Details Belo...

Category

Vintage 1920s Stud Earrings

Materials

White 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.