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AGL Certified 3.8 Carat Oval No Heat Burma Ruby Ring & Diamond Halo in Platinum
AGL Certified 3.8 Carat Oval No Heat Burma Ruby Ring & Diamond Halo in Platinum

AGL Certified 3.8 Carat Oval No Heat Burma Ruby Ring & Diamond Halo in Platinum

By Gad & Co.

Located in Miami, FL

Item Details: - Type: Ring - Metal: Platinum 900 / 18K Yellow Gold - Weight: 8.65 Grams - Setting: Prong, Halo - Size: 6.25 - Ring Face Size: 2.7 x 2.05 cm - Diamonds: 6 Round cut di...

Category

2010s Burmese Modern Cocktail Rings

Materials

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

GRS Cert. 4.9 Carat Insignificant Oil Colombian Emerald & Trapezoid Diamond Ring
GRS Cert. 4.9 Carat Insignificant Oil Colombian Emerald & Trapezoid Diamond Ring

GRS Cert. 4.9 Carat Insignificant Oil Colombian Emerald & Trapezoid Diamond Ring

By Gad & Co.

Located in Miami, FL

Ring Details: - Metal: 18k Yellow Gold + Platinum 900 - Ring Type: 3-Stone Ring - Shank: Split - Setting: Prong - Era: Contemporary - Weight: 7.01 Grams - Ring Size: 7 (adjustable) ...

Category

2010s Hong Kong Modern Three-Stone Rings

Materials

Diamond, Emerald, 18k Gold, Platinum

GIA Certified Type A Fei Cui Jadeite Jade Diamond Halo Platinum Split Shank Ring
GIA Certified Type A Fei Cui Jadeite Jade Diamond Halo Platinum Split Shank Ring

GIA Certified Type A Fei Cui Jadeite Jade Diamond Halo Platinum Split Shank Ring

Located in Miami, FL

Product Specifications: Item Type: Cocktail Ring Metal: Platinum 900 Size: 6.75 (adjustable) Total Weight: 9.40 grams Ring Face: 17 x 13.5mm Shank Style: Split Shank Certification: ...

Category

21st Century and Contemporary Contemporary Cocktail Rings

Materials

Diamond, Jade, Platinum

1940s 1.20 Carat Diamond and Platinum Engagement Ring
1940s 1.20 Carat Diamond and Platinum Engagement Ring

1940s 1.20 Carat Diamond and Platinum Engagement Ring

Located in Jesmond, Newcastle Upon Tyne

The ring is hallmarked to the interior with the marks for platinum (900 plat 100 irid). This impressive vintage cocktail ring is supplied with an independent diamond grading certifi...

Category

20th Century Unknown Engagement Rings

Materials

Diamond, Platinum

Pavé Emerald & Diamond Ring in 900 Platinum
Pavé Emerald & Diamond Ring in 900 Platinum

Pavé Emerald & Diamond Ring in 900 Platinum

Located in Bloomington, MN

Pavé Emerald & Diamond Ring in 900 Platinum This ring is crafted in 900 platinum and features pavé-set emeralds scattered among round diamonds in a wide band design.

Category

21st Century and Contemporary Contemporary Band Rings

Materials

Diamond, Emerald, Platinum

Bypass Ruby & Diamond Ring in 900 Platinum
Bypass Ruby & Diamond Ring in 900 Platinum

Bypass Ruby & Diamond Ring in 900 Platinum

Located in Bloomington, MN

Bypass Ruby & Diamond Ring in 900 Platinum This ring is crafted in 900 platinum and features red rubies in a sculptural bypass design.

Category

21st Century and Contemporary Modernist Fashion Rings

Materials

Diamond, Ruby, Platinum

Fancy brown 6.123 ct Princess Cut Diamond with Trillion Diamond in Platinum
Fancy brown 6.123 ct Princess Cut Diamond with Trillion Diamond in Platinum

Fancy brown 6.123 ct Princess Cut Diamond with Trillion Diamond in Platinum

Located in Zurich, Zollstrasse

The ring is hallmarked to the interior of the shank with the platinum guarantee mark, the Platinum fineness mark 900 and the carat weight 6.123 ct.

Category

2010s Unknown Contemporary Three-Stone Rings

Materials

Diamond, Platinum

SOUTH SEAS Gia Certified Pearl Cocktail Ring In Platinum With 1.71 Ctw Diamonds
SOUTH SEAS Gia Certified Pearl Cocktail Ring In Platinum With 1.71 Ctw Diamonds

SOUTH SEAS Gia Certified Pearl Cocktail Ring In Platinum With 1.71 Ctw Diamonds

Located in Miami, FL

The fabulous ring and has been crafted with substantial classic design in solid platinum .900/.999 platinum with high polished finish.

Category

Vintage 1970s American Modernist Cocktail Rings

Materials

Diamond, Pearl, White Diamond, South Sea Pearl, Platinum

1.84 Carat Oval Cut Dark Blue Sapphire and Diamond Ring
1.84 Carat Oval Cut Dark Blue Sapphire and Diamond Ring

1.84 Carat Oval Cut Dark Blue Sapphire and Diamond Ring

Located in Miami, FL

Natural 1.84 Carat Oval Cut Blue Sapphire and 0.27 CTTW Round Cut Pave Set Diamond Three Stone Illusion Style Ring Details: Item Type: Cocktail Ring Metal: Platinum 900 Size: 6.5 ...

Category

21st Century and Contemporary Modern Solitaire Rings

Materials

Diamond, Sapphire, Blue Sapphire, Platinum

Platinum Emerald Diamond Ring - 900 Pear 2.62ctw
Platinum Emerald Diamond Ring - 900 Pear 2.62ctw

Platinum Emerald Diamond Ring - 900 Pear 2.62ctw

Located in Greensboro, NC

Size: 6 1/2 Sizing Fee: Up 1/2 a size for $40 or Down 1/2 a size for $40 Metal Content: 900 Platinum Stone Information Natural Emerald Treatment: Oiling Carat(s): 2.12ct Cut: Pear...

Category

21st Century and Contemporary Cocktail Rings

Materials

Diamond, Emerald, Platinum

GIA CERTIFIED Cocktail Ring In Platinum With 15.40 Ctw Sapphire And Diamonds
GIA CERTIFIED Cocktail Ring In Platinum With 15.40 Ctw Sapphire And Diamonds

GIA CERTIFIED Cocktail Ring In Platinum With 15.40 Ctw Sapphire And Diamonds

Located in Miami, FL

The beautiful modernist ring and has been crafted with substantial weight, in solid platinum .900/.999 platinum with high polished finish.

Category

Vintage 1970s American Modernist Cocktail Rings

Materials

Diamond, Sapphire, White Diamond, Star Sapphire, Platinum

Garnet and Diamond Openwork Ring in 900 Platinum
Garnet and Diamond Openwork Ring in 900 Platinum

Garnet and Diamond Openwork Ring in 900 Platinum

Located in Bloomington, MN

Garnet and Diamond Openwork Ring in 900 Platinum This ring is crafted in 900 platinum and features an oval grape garnet set in a prong setting.

Category

Early 20th Century Retro Cocktail Rings

Materials

Diamond, Garnet, Platinum

Vintage 900 Platinum Black Onyx Rectangle Signet Ring
Vintage 900 Platinum Black Onyx Rectangle Signet Ring

Vintage 900 Platinum Black Onyx Rectangle Signet Ring

Located in Vilnius, Vilniaus apskr.

This is a vintage signet ring crafted in 900 platinum. Circa 1980. The piece features rectangle black onyx.

Category

20th Century Modern Signet Rings

Materials

Onyx, Platinum

Isle of Man 1989 Persian Cat Elizabeth II Coin 1/5 Crown Gold Pendant Top
Isle of Man 1989 Persian Cat Elizabeth II Coin 1/5 Crown Gold Pendant Top

Isle of Man 1989 Persian Cat Elizabeth II Coin 1/5 Crown Gold Pendant Top

Located in Kobe, Hyogo

Item: Authentic Isle of Man 1989 Persian Cat Coin Pendant Top Stone: Diamond ( total 1.32ct ), Sapphire ( total 2.23ct ) Metal: Coin - Platinum 1000, Pendant top Setting Metal - Plat...

Category

Vintage 1980s British Pendant Necklaces

Materials

Platinum

Platinum Sapphire & Diamond Engagement Ring - 900 Round .77ctw
Platinum Sapphire & Diamond Engagement Ring - 900 Round .77ctw

Platinum Sapphire & Diamond Engagement Ring - 900 Round .77ctw

Located in Greensboro, NC

Size: 5 Sizing Fee: Up 2 sizes for $50 Metal Content: 900 Platinum Stone Information Natural Sapphire Treatment: Heating Carat(s): .57ct Cut: Round Color: Blue Natural Diamonds Ca...

Category

21st Century and Contemporary Engagement Rings

Materials

Diamond, Sapphire, Platinum

Vintage 900 Platinum Cable and S Link 27" Chain Necklace
Vintage 900 Platinum Cable and S Link 27" Chain Necklace

Vintage 900 Platinum Cable and S Link 27" Chain Necklace

Located in New York, NY

This vintage 900 platinum chain necklace features a refined alternating cable and S-link design with a 27" length for versatile styling.

Category

20th Century Chain Necklaces

Materials

Platinum

2.61 Carat European Cut M-N/VS1 Diamond Vintage Art Deco Engagement Ring
2.61 Carat European Cut M-N/VS1 Diamond Vintage Art Deco Engagement Ring

2.61 Carat European Cut M-N/VS1 Diamond Vintage Art Deco Engagement Ring

Located in Miami, FL

Details: Item Type: Engagement Ring Metal: Platinum 900 Size: 7.75 (adjustable) Weight: 3.40 Grams Finish: Milgrain, Polished   Center Stone Details: Type: Diamond Carat: 2.61 Color:...

Category

Vintage 1940s Art Deco Engagement Rings

Materials

Diamond, Platinum

Platinum Emerald Diamond Ring - 900 Emerald Cut 1.23ctw GIA
Platinum Emerald Diamond Ring - 900 Emerald Cut 1.23ctw GIA

Platinum Emerald Diamond Ring - 900 Emerald Cut 1.23ctw GIA

Located in Greensboro, NC

Size: 9 Metal Content: 900 Plat 100 Irid Stone Information Natural Emerald Treatment: Oiling Carat(s): .39ct Cut: Emerald Certified by: GIA Report Number: 6227175483 Natural Diam...

Category

21st Century and Contemporary Cocktail Rings

Materials

Diamond, Emerald, Platinum

Platinum Ruby & Diamond Ring - 900 Emerald Cut 4.39ctw AGL
Platinum Ruby & Diamond Ring - 900 Emerald Cut 4.39ctw AGL

Platinum Ruby & Diamond Ring - 900 Emerald Cut 4.39ctw AGL

Located in Greensboro, NC

Size: 4 1/2 Note: Please contact us for a resizing quote. Metal Content: 900 Platinum Stone Information Natural Ruby Treatment: No Heat, Untreated Carat(s): 3.91ct Cut: Emerald Col...

Category

21st Century and Contemporary Cocktail Rings

Materials

Diamond, Ruby, Platinum

Platinum Diamond Vintage Engagement Ring, 900 Round Cut 1.18 Carat
Platinum Diamond Vintage Engagement Ring, 900 Round Cut 1.18 Carat

Platinum Diamond Vintage Engagement Ring, 900 Round Cut 1.18 Carat

Located in Greensboro, NC

Crafted in heirloom-quality 900 platinum, this exquisite vintage engagement piece showcases a sparkling diamond solitaire beautifully accompanied by milgrain-outlined accent diamonds...

Category

20th Century Engagement Rings

Materials

Diamond, Platinum

Platinum Diamond Link Bracelet 7" - 900 & 14k Round 2.00ctw Latticework Milgrain
Platinum Diamond Link Bracelet 7" - 900 & 14k Round 2.00ctw Latticework Milgrain

Platinum Diamond Link Bracelet 7" - 900 & 14k Round 2.00ctw Latticework Milgrain

Located in Greensboro, NC

Metal Content: 900 Platinum & 14k White Gold (some link connections) Stone Information Natural Diamonds Carat(s): 2.00ctw Cut: Round Brilliant Color: G - H Clarity: VS1 - SI2 (most...

Category

21st Century and Contemporary Link Bracelets

Materials

Diamond, Platinum

0.03 Carat Fancy Pink Pear Diamond Double Halo in 18K White Gold Statement Ring
0.03 Carat Fancy Pink Pear Diamond Double Halo in 18K White Gold Statement Ring

0.03 Carat Fancy Pink Pear Diamond Double Halo in 18K White Gold Statement Ring

Located in Miami, FL

18KW pink diamond and diamond ring certified; Pink Diamond Pear- 0.03 Carats, size 6 8x20mm total ring A certified natural fancy pink pear cut diamond double halo ring in platinum 9...

Category

21st Century and Contemporary Art Deco Engagement Rings

Materials

Diamond, Yellow Diamond, Pink Diamond, Gold, 18k Gold, Rose Gold, White ...

Aquamarin Diamond Bracelet 6.29 Carat  900 Platinum ALG Certified "Ocean Blue"
Aquamarin Diamond Bracelet 6.29 Carat  900 Platinum ALG Certified "Ocean Blue"

Aquamarin Diamond Bracelet 6.29 Carat 900 Platinum ALG Certified "Ocean Blue"

Located in München, DE

The bracelet is crafted in 900 platinum, with the clasp and safety latch made in 850 platinum for secure wear.

Category

21st Century and Contemporary European Contemporary Link Bracelets

Materials

Diamond, Aquamarine, Platinum

Sunita Nahata Tanzanite 2.37ct. Fancy Ring in 900 Platinum with Diamond.
Sunita Nahata Tanzanite 2.37ct. Fancy Ring in 900 Platinum with Diamond.

Sunita Nahata Tanzanite 2.37ct. Fancy Ring in 900 Platinum with Diamond.

By Sunita Nahata

Located in Hong Kong, HK

Diamond: 0.390 carat, mix size, round shape, G color, VS clarity. Gold: 8.42g, 900 platinum. TZ356

Category

21st Century and Contemporary Thai Contemporary Bridal Rings

Materials

Diamond, Tanzanite, Platinum

1.00ctw G-H SI1 Diamond Set in Iridium 900 Platinum Ring
1.00ctw G-H SI1 Diamond Set in Iridium 900 Platinum Ring

1.00ctw G-H SI1 Diamond Set in Iridium 900 Platinum Ring

Located in Sewickley, PA

This striking vintage diamond ring is crafted in luxurious iridium platinum, a rare and enduring alloy prized for its strength and brilliance.

Category

Mid-20th Century American Contemporary Fashion Rings

Materials

Diamond, Platinum

Color-Change Sapphire and Diamond Halo Ring in 900 Platinum- GIA 6237901849
Color-Change Sapphire and Diamond Halo Ring in 900 Platinum- GIA 6237901849

Color-Change Sapphire and Diamond Halo Ring in 900 Platinum- GIA 6237901849

Located in Bloomington, MN

Color-Change Sapphire and Diamond Halo Ring in 900 Platinum- GIA 6237901849 This striking ring is crafted in 900 platinum and features a 3.23-carat color-change sapphire displaying ...

Category

21st Century and Contemporary Contemporary Engagement Rings

Materials

Diamond, Sapphire, Purple Sapphire, Platinum

Edwardian 900 Platinum Green Paste Diamond Bow Floral Motif Drop Pendant Brooch
Edwardian 900 Platinum Green Paste Diamond Bow Floral Motif Drop Pendant Brooch

Edwardian 900 Platinum Green Paste Diamond Bow Floral Motif Drop Pendant Brooch

Located in Vilnius, Vilniaus apskr.

This is an Edwardian bow floral motif drop pendant-brooch. It is crafted in 900 platinum. The piece features green paste and old cut diamonds.

Category

Early 20th Century Edwardian Pendant Necklaces

Materials

Diamond, Platinum

Paraiba Tourmaline Brilliant Pendant with Chain 900 Platinum blue Lagune Colors
Paraiba Tourmaline Brilliant Pendant with Chain 900 Platinum blue Lagune Colors

Paraiba Tourmaline Brilliant Pendant with Chain 900 Platinum blue Lagune Colors

Located in Viena, Viena

lagune colors an intoxicating color, set with Paraiba tourmalines of 0.10 ct, full-cut diamonds total approx. 0.10 ct, TW (Fine White) / VS (very small inclusions), weighing approx. ...

Category

2010s European Modern Pendant Necklaces

Materials

Diamond, Tourmaline, Paraiba, Platinum

Ruby & Diamond Two-Tone Ring in 900 Platinum and 18k Yellow Gold
Ruby & Diamond Two-Tone Ring in 900 Platinum and 18k Yellow Gold

Ruby & Diamond Two-Tone Ring in 900 Platinum and 18k Yellow Gold

Located in Bloomington, MN

Ruby & Diamond Two-Tone Ring in 900 Platinum and 18k Yellow Gold This ring is crafted in 900 platinum and 18k yellow gold, centering an oval red ruby within a petite halo of rou...

Category

21st Century and Contemporary Contemporary Fashion Rings

Materials

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

Cathy Waterman Diamond Drop Earrings 900 Platinum 22k Gold Hook Posts Pierced
Cathy Waterman Diamond Drop Earrings 900 Platinum 22k Gold Hook Posts Pierced

Cathy Waterman Diamond Drop Earrings 900 Platinum 22k Gold Hook Posts Pierced

By Cathy Waterman

Located in McLeansville, NC

Gem: Natural Diamonds - 0.24 Total Carats, Round Brilliant Cut, F-H Color, VS2 - SI1 Clarity Metal: 900 Platinum, 22k Yellow Gold Weight: 5.7 Grams Stamps: 900 PT, 22k Closure: Hook...

Category

21st Century and Contemporary Dangle Earrings

Materials

Diamond, 22k Gold, Platinum

Saphire Brilliant Earrings 900 Platinum orange-pink 7.14 1.14ct incredible Color
Saphire Brilliant Earrings 900 Platinum orange-pink 7.14 1.14ct incredible Color

Saphire Brilliant Earrings 900 Platinum orange-pink 7.14 1.14ct incredible Color

Located in Viena, Viena

A classic among the dream earrings, sapphires in the incredible color Padparadscha pink-orange, 2 oval-cut dreamlike sapphires totaling approx. 7.14 ct (3.07 and 4.07 ct) in the size...

Category

2010s Dominican Modern Drop Earrings

Materials

Diamond, Sapphire, Padparadscha Sapphire , Platinum

Platinum Diamond Vintage Wedding Band - 900 Single Cut .35ctw Seven-Stone Ring
Platinum Diamond Vintage Wedding Band - 900 Single Cut .35ctw Seven-Stone Ring

Platinum Diamond Vintage Wedding Band - 900 Single Cut .35ctw Seven-Stone Ring

Located in Greensboro, NC

Size: 5 3/4 Sizing Fee: Up 2 sizes for $40 or Down 1 size for $30 Era: Vintage Metal Content: 900 Platinum Stone Information: Natural Diamonds Total Carats: .35ctw Cut: Single Co...

Category

21st Century and Contemporary Band Rings

Materials

Diamond, Platinum

Platinum Diamond Vintage Engagement Ring, 900 Round Cut 1.18ctw
Platinum Diamond Vintage Engagement Ring, 900 Round Cut 1.18ctw

Platinum Diamond Vintage Engagement Ring, 900 Round Cut 1.18ctw

Located in Greensboro, NC

Crafted in heirloom-quality 900 platinum, this exquisite vintage engagement piece showcases a sparkling diamond solitaire beautifully accompanied by milgrain-outlined accent diamonds...

Category

21st Century and Contemporary More Rings

EDWARDIAN 1905 Cocktail Ring In Platinum With 14.16 Ctw Turquoise & Diamonds
EDWARDIAN 1905 Cocktail Ring In Platinum With 14.16 Ctw Turquoise & Diamonds

EDWARDIAN 1905 Cocktail Ring In Platinum With 14.16 Ctw Turquoise & Diamonds

Located in Miami, FL

The ring has been crafted with transitional styles in solid .900/.999 platinum and 18 karats white gold, with high polished finish.

Category

Antique Early 1900s American Edwardian Cocktail Rings

Materials

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

Japan Germany Lab Certified Emerald & Diamond Platinum PT 900 'Big Spread' Ring
Japan Germany Lab Certified Emerald & Diamond Platinum PT 900 'Big Spread' Ring

Japan Germany Lab Certified Emerald & Diamond Platinum PT 900 'Big Spread' Ring

By Malpani Jewels

Located in Hung Hom, HK

Certified by the Japan and Germany Gemological Laboratory, 0.65 carats of Colombian Emeralds are set with 1.67 carat of white brilliant round diamond, The details of the diamond are ...

Category

2010s Japanese Contemporary Dome Rings

Materials

Diamond, White Diamond, Emerald, Platinum

Kunzite Diamond 5.45 Carats Extravagant Cocktail Ring 900 Platinum / 18 Kt Gold
Kunzite Diamond 5.45 Carats Extravagant Cocktail Ring 900 Platinum / 18 Kt Gold

Kunzite Diamond 5.45 Carats Extravagant Cocktail Ring 900 Platinum / 18 Kt Gold

Located in München, DE

The ring is crafted in 900 platinum (alloy is stamped). Weight: approx. 19 grams Band width: 5 - 10 mm (gradient) Ring size: 54 (inner diameter: 17 mm)

Category

21st Century and Contemporary European Contemporary Cocktail Rings

Materials

Diamond, Kunzite, Platinum, Gold

New .900 Platinum 6.28ctw GIA Oval Blue Sapphire & Round Diamond Halo Ring
New .900 Platinum 6.28ctw GIA Oval Blue Sapphire & Round Diamond Halo Ring

New .900 Platinum 6.28ctw GIA Oval Blue Sapphire & Round Diamond Halo Ring

Located in Montclair, NJ

--Stone(s):-- (1) Natural Genuine Sapphire - Oval Brilliant Cut - Claw Prong Set - Blue Color with Natural Inclusions - No Heat - 5.49ct (exact - certified) ** See Certification Det...

Category

2010s American Solitaire Rings

Materials

Diamond, Blue Sapphire, Platinum

Vintage Handcrafted Colorful Opal Diamond Ring 900 Platinum Size 6
Vintage Handcrafted Colorful Opal Diamond Ring 900 Platinum Size 6

Vintage Handcrafted Colorful Opal Diamond Ring 900 Platinum Size 6

Located in McLeansville, NC

Gemstone Information: - Natural Opal - Size - 10.8 x 12 mm Cut - Oval Cabochon Color - Multi-Color - Natural Diamonds - Total Carats - 0.43ctw Cut - Round Brilliant Color - G - H C...

Category

2010s Fashion Rings

Materials

Diamond, Opal

Art Deco 1.74ctw Diamond Engagement Ring 900 Platinum Size 5.25 GIA Old European
Art Deco 1.74ctw Diamond Engagement Ring 900 Platinum Size 5.25 GIA Old European

Art Deco 1.74ctw Diamond Engagement Ring 900 Platinum Size 5.25 GIA Old European

Located in McLeansville, NC

Gemstone Information: *Natural Diamond* Carats - 1.46ct Cut - Old European Color -M Clarity - SI1 GIA - 6214676720 Metal: 900 Platinum Weight: 3.9 Grams Stamps: 900 Plat Face Heig...

Category

Early 20th Century Engagement Rings

Materials

Diamond, Platinum

ART DECO 1925 Stations Necklace Chain In .900 Platinum And European Cut Diamonds
ART DECO 1925 Stations Necklace Chain In .900 Platinum And European Cut Diamonds

ART DECO 1925 Stations Necklace Chain In .900 Platinum And European Cut Diamonds

Located in Miami, FL

The chain was carefully hand-crafted in solid .900/.999 platinum and designed with stations embellished with twelve European round cut diamonds.

Category

Vintage 1920s American Art Deco Chain Necklaces

Materials

Diamond, White Diamond, Platinum

DAVID WEBB Panther Clips-On Earrings In Platinum With Diamonds & Emeralds
DAVID WEBB Panther Clips-On Earrings In Platinum With Diamonds & Emeralds

DAVID WEBB Panther Clips-On Earrings In Platinum With Diamonds & Emeralds

By David Webb

Located in Miami, FL

Materials: .750 Yellow gold, .900 platinum, Colombian emeralds and white diamonds.

Category

Vintage 1970s American Modernist Clip-on Earrings

Materials

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

Brilliant cut diamonds 3.00 ct Wide Band Ring Pavé Setting solid 900-Platinum
Brilliant cut diamonds 3.00 ct Wide Band Ring Pavé Setting solid 900-Platinum

Brilliant cut diamonds 3.00 ct Wide Band Ring Pavé Setting solid 900-Platinum

Located in München, DE

Unique piece, crafted in solid 900 platinum. Details: Style: Band ring Diamonds: aprox. 3.00 carats in total Setting: Pavé Band width: 9.5 to 11.5 mm Ring weight: 18.29 grams Ring s...

Category

21st Century and Contemporary European Contemporary Band Rings

Materials

Diamond, Platinum

Natural green Jade Ball 12.5 mm and Diamonds Ring 900 Platinum Unique Piece
Natural green Jade Ball 12.5 mm and Diamonds Ring 900 Platinum Unique Piece

Natural green Jade Ball 12.5 mm and Diamonds Ring 900 Platinum Unique Piece

Located in München, DE

The combination of the striking jade and the dazzling diamonds creates a harmonious balance of nature and luxury, making this ring a truly exceptional piece of jewelry. Crafted in 90...

Category

21st Century and Contemporary European Contemporary Solitaire Rings

Materials

Diamond, Jade, Platinum

ART DECO 1925 Eternity Ring In .900 Platinum With 28 European Round Diamonds
ART DECO 1925 Eternity Ring In .900 Platinum With 28 European Round Diamonds

ART DECO 1925 Eternity Ring In .900 Platinum With 28 European Round Diamonds

Located in Miami, FL

The ring was carefully crafted in solid .900/.999 platinum with high polished finish and embellished around with twenty-eight old European round cut diamonds.

Category

Vintage 1920s American Art Deco Wedding Rings

Materials

Diamond, White Diamond, Platinum

Ruby Diamond Ring 900 Platinum 1.16 0.10 ct in interesting Emerald Cut magnifice
Ruby Diamond Ring 900 Platinum 1.16 0.10 ct in interesting Emerald Cut magnifice

Ruby Diamond Ring 900 Platinum 1.16 0.10 ct in interesting Emerald Cut magnifice

Located in Viena, Viena

rubies in emerald cut, very unusual and then this grandiose color, great platinum ring very beautifully crafted with 3 fine red-pink rubies in emerald cut total approx. 1.16 ct, tran...

Category

2010s Italian Modern Solitaire Rings

Materials

Diamond, Ruby, Platinum

Ruby Brilliant Drop Ring in 900 Platinum AAA 0.96 ct 2x 0.465 ct W flawless
Ruby Brilliant Drop Ring in 900 Platinum AAA 0.96 ct 2x 0.465 ct W flawless

Ruby Brilliant Drop Ring in 900 Platinum AAA 0.96 ct 2x 0.465 ct W flawless

Located in Viena, Viena

very noble with the two half-carat brilliant drops on the side, ring in 900 platinum, a pink-red ruby ​​ of approx. 0.96 ct, very fine color quality, AAA, hardly any liquid streaks, ...

Category

2010s Italian Modern Solitaire Rings

Materials

Diamond, Ruby, Platinum

Ruby Brilliant Drop Ring in 900 Platinum AAA+ 0.96 ct 2x 0.465 ct W flawless
Ruby Brilliant Drop Ring in 900 Platinum AAA+ 0.96 ct 2x 0.465 ct W flawless

Ruby Brilliant Drop Ring in 900 Platinum AAA+ 0.96 ct 2x 0.465 ct W flawless

Located in Viena, Viena

very noble with the two half-carat brilliant drops on the side, ring in 900 platinum, a pink-red ruby ​​ of approx. 0.96 ct, very fine color quality, AAA, hardly any liquid streaks, ...

Category

2010s Italian Modern Solitaire Rings

Materials

Diamond, Ruby, Platinum

Set in PT900, 1.09 carats, natural Colombian Emerald & Diamonds Engagement Ring
Set in PT900, 1.09 carats, natural Colombian Emerald & Diamonds Engagement Ring

Set in PT900, 1.09 carats, natural Colombian Emerald & Diamonds Engagement Ring

By JEWEL HUB

Located in Hong Kong, HK

A very gorgeous and beautiful, modern style, Emerald Ring set in Platinum 900 & Diamonds. The weight of the Emerald is 1.09 carats.

Category

21st Century and Contemporary Indian Modern Engagement Rings

Materials

Diamond, Emerald, Platinum

ART DECO 1925 Ring In .900 Platinum With 1.22 Cts In Diamonds And Red Garnet
ART DECO 1925 Ring In .900 Platinum With 1.22 Cts In Diamonds And Red Garnet

ART DECO 1925 Ring In .900 Platinum With 1.22 Cts In Diamonds And Red Garnet

Located in Miami, FL

The ring has been carefully crafted in solid .900/.999 platinum and embellished with a great selection of eleven natural gemstones, such; white colorless diamonds and a red garnet.

Category

Vintage 1920s American Art Deco Engagement Rings

Materials

Diamond, Garnet, White Diamond, Platinum

Art Deco Diamond Ring, 900 Platinum Old Mine Cut 5 3/4 Genuine .71 Carat
Art Deco Diamond Ring, 900 Platinum Old Mine Cut 5 3/4 Genuine .71 Carat

Art Deco Diamond Ring, 900 Platinum Old Mine Cut 5 3/4 Genuine .71 Carat

Located in Greensboro, NC

We guarantee this ring to be 900 platinum as stamped. Please check out the enlarged pictures.

Category

Vintage 1920s Unknown Art Deco Engagement Rings

Materials

Diamond, Platinum

TIFFANY & CO 1910 Edwardian Brooch-Pendant Platinum 7.01 Cwt Diamonds & Sapphire
TIFFANY & CO 1910 Edwardian Brooch-Pendant Platinum 7.01 Cwt Diamonds & Sapphire

TIFFANY & CO 1910 Edwardian Brooch-Pendant Platinum 7.01 Cwt Diamonds & Sapphire

By Tiffany & Co.

Located in Miami, FL

This magnificent jewel was meticulously handcrafted in solid platinum (.900 fineness) and designed with the elegant symmetry and refined workmanship that define the finest creations ...

Category

Vintage 1910s American Edwardian Brooches

Materials

Diamond, Sapphire, White Diamond, Blue Sapphire, Platinum

4 Carat Colombian Emerald & Diamond Solitaire PT 900 RIng
4 Carat Colombian Emerald & Diamond Solitaire PT 900 RIng

4 Carat Colombian Emerald & Diamond Solitaire PT 900 RIng

By Malpani Jewels

Located in Hung Hom, HK

Colombian emeralds tend to have more trace amounts of chromium (called an inclusion) in relation to other emeralds, which typically gives them the pure, bright, saturated green so be...

Category

2010s Japanese Art Nouveau Solitaire Rings

Materials

Diamond, Emerald, Platinum

Pt 900 Natural Green Tourmaline and Natural Diamond Ring
Pt 900 Natural Green Tourmaline and Natural Diamond Ring

Pt 900 Natural Green Tourmaline and Natural Diamond Ring

Located in New York, NY

Green Tourmaline and Diamond Ring Metal Type: Platinum Total Item Weight: 6.75 Grams Ring Size: 8.5 (Resizable) Dimensions: Length: 21.0 mm X Width: 11.5 mm X Height: 4.0 mm 1: Prim...

Category

20th Century Contemporary Engagement Rings

Materials

Diamond, Tourmaline, Platinum

DAVID WEBB White Enameled Geometric Cocktail Ring With VVS Diamonds
DAVID WEBB White Enameled Geometric Cocktail Ring With VVS Diamonds

DAVID WEBB White Enameled Geometric Cocktail Ring With VVS Diamonds

By David Webb

Located in Miami, FL

Hallmarks: Stamped with the maker's mark, the mark for the assay and warranty of the .750/.999 yellow gold and the .900/.999 platinum, the five-digits serial numbers and signed in fu...

Category

Vintage 1980s Modernist Cocktail Rings

Materials

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

DAVID WEBB Black Enameled Cocktail Ring In 18Kt Gold With 3.96 Cwt. VVS Diamonds
DAVID WEBB Black Enameled Cocktail Ring In 18Kt Gold With 3.96 Cwt. VVS Diamonds

DAVID WEBB Black Enameled Cocktail Ring In 18Kt Gold With 3.96 Cwt. VVS Diamonds

By David Webb

Located in Miami, FL

Hallmarks: Stamped with the maker's mark, the mark for the assay and warranty of the .750/.999 yellow gold and the .900/.999 platinum, the five-digits serial numbers and signed in fu...

Category

Vintage 1980s American Modernist Cocktail Rings

Materials

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

7.12 Carat Mexican Fire Opal Tweety Bird PT 900 Cocktail Pendant
7.12 Carat Mexican Fire Opal Tweety Bird PT 900 Cocktail Pendant

7.12 Carat Mexican Fire Opal Tweety Bird PT 900 Cocktail Pendant

By Malpani Jewels

Located in Hung Hom, HK

Our tweety bird pendant comprises a 7.12-carat orange opal decorated with a 0.21 carat, pear-shaped ruby and a 0.21-carat, oval-shaped amethyst, and white diamonds. Opals are extrem...

Category

2010s Hong Kong Art Nouveau Pendant Necklaces

Materials

Amethyst, Diamond, White Diamond, Opal, Ruby, Fire Opal, Platinum

CGL Certified 0.19 Carat Natural Fancy Pink Diamond PT 900 Solitaire Ring
CGL Certified 0.19 Carat Natural Fancy Pink Diamond PT 900 Solitaire Ring

CGL Certified 0.19 Carat Natural Fancy Pink Diamond PT 900 Solitaire Ring

By Malpani Jewels

Located in Hung Hom, HK

A CGL Certified 0.19 carat Fancy Pink Diamond is set along with 0.82 carat of white brilliant round and radiant cut diamond. Pink diamonds are some of the most alluring fancy diamond...

Category

2010s Japanese Art Nouveau Wedding Rings

Materials

Diamond, White Diamond, Pink 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 ringsvintage engagement rings or Art Deco engagement rings

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