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Art Deco Platinum Bracelet 12.00 Ct Old Mine Diamonds F-I VS1-SI1: Art Deco Platinum Bracelet 12.00 Ct Old Mine Diamonds F-I VS1-SI1 This stunning Art Deco bracelet is crafted in platinum and features a remarkable total diamond weight of approximately 12.00 carats. T

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Art Deco Platinum Bracelet 12.00 Ct Old Mine Diamonds F-I VS1-SI1

Est. $16,276-$21,158

$100

Mynt AuctionsNew York, NY

Platinum Sapphire & Diamond Ring: Platinum Sapphire & Diamond Ring Item # 13213 Category Rings Platinum Sapphire & Diamond Ring Weighing 14.2 grams Set with a 3.56 Ct. Sapphire in center Along with 3.20 Ct. of Diamonds (Stamped weight

4 days Left

Platinum Sapphire & Diamond Ring

Est. $800-$1,200

$400

Joshua KodnerDania Beach, FL

Blancpain The "Le Brassus" Limited Edition Of 200 Pieces Platinum Calendar, Ref 4276, Moonphase, And: Blancpain The "Le Brassus" Limited Edition Of 200 Pieces Platinum Calendar, Ref 4276, Moonphase, And Dual Time Zone GMT, Includes Original Box & Papers A highly collectible and sophisticated gentleman

5 days Left

Blancpain The "Le Brassus" Limited Edition Of 200 Pieces Platinum Calendar, Ref 4276, Moonphase, And

Est. £11,000-£11,500

£4,500

Blenheim AuctionsLondon, London

A set of six Moser Splendid Platinum clear cut glass wine goblets, 20th century and later: A set of six Moser Splendid Platinum clear cut glass wine goblets 20th century and later Each with etched factory mark. height 7 3/4in (19.7cm)

May 21, 2026

A set of six Moser Splendid Platinum clear cut glass wine goblets, 20th century and later

Est. $400-$600

$200

Andrew Jones AuctionsLos Angeles, CA

PLATINUM 8.25CT DIAMOND BROOCH: Sparkling Diamonds with a total weight of 8.25 carats make this luxury brooch endlessly impressive. Crafted from Platinum, it will effortlessly elevate any ensemble and continually catch the light. It

3 days Left

PLATINUM 8.25CT DIAMOND BROOCH

Est. $8,000-$32,000

$8,000

Robinhood AuctionsLas Vegas, NV

Antique 18K Gold Platinum Ruby Sapphire Diamond Ring: Antique 18K Gold Platinum Ruby Sapphire Diamond Ring This exquisite antique ring features a stunning combination of 18K yellow gold and platinum, showcasing two Burma no-heat rubies weighing approxima

20 hrs Left

Antique 18K Gold Platinum Ruby Sapphire Diamond Ring

Est. $6,773-$8,804

$100

Mynt AuctionsNew York, NY

JULIUS COHEN: AN 18K GOLD, PLATINUM AND DIAMOND BRACELET AND EARCLIP SET: JULIUS COHEN: AN 18K GOLD, PLATINUM AND DIAMOND BRACELET AND EARCLIP SET All of dolphin motif, accented with round brilliant-cut diamonds and round cabochon sapphires; bracelet and both earclips signe

May 19, 2026

JULIUS COHEN: AN 18K GOLD, PLATINUM AND DIAMOND BRACELET AND EARCLIP SET

Est. $10,000-$15,000

$10,000

BonhamsLos Angeles, CA

A PLATINUM, SAPPHIRE AND DIAMOND RING: A PLATINUM, SAPPHIRE AND DIAMOND RING Centering an oval-shaped sapphire, in a cluster surround of round brilliant-cut, pear and marquise-shaped diamonds; estimated sapphire weight 6.00 carats; estimat

May 19, 2026

A PLATINUM, SAPPHIRE AND DIAMOND RING

Est. $7,000-$9,000

$7,000

BonhamsLos Angeles, CA

PLATINUM 5.50CT DIAMOND AND OPAL NECKLACE: This luxury necklace is filled with dynamic details. Intricate metalwork and sparkling Diamond accents totaling 5.50 carats elevate the overall design. Fiery blue Opal gemstones make it a unique acces

3 days Left

PLATINUM 5.50CT DIAMOND AND OPAL NECKLACE

Est. $8,000-$32,000

$8,000

Robinhood AuctionsLas Vegas, NV

Four Rings, Platinum, 14k Yellow Gold, with Gemstones: Four rings, to include: (1) platinum, diameter, and sapphire; (3) 14k yellow gold, two with diamonds, one with opal. Approximately 2.8 grams of platinum; approximately 7.3 grams TW of 14k. Provenance:

5 days Left

Four Rings, Platinum, 14k Yellow Gold, with Gemstones

Est. $600-$800

$300

Kaminski AuctionsBeverly, MA

Tire Ring by David Webb in Platinum and 18K Gold with Diamond Accents: Tire Ring by David Webb in Platinum and 18K Gold with Diamond Accents This estate ring by David Webb features a bold, architectural design crafted in platinum and 18K yellow gold. The wide band is ado

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Tire Ring by David Webb in Platinum and 18K Gold with Diamond Accents

Est. $23,036-$29,946

$100

Mynt AuctionsNew York, NY

Art Deco Platinum Ring with 2.82 Ct Lab Grown Diamond and 22 Side Diamonds: Art Deco Platinum Ring with 2.82 Ct Lab Grown Diamond and 22 Side Diamonds This exquisite Art Deco ring is crafted in platinum and features a stunning 2.82 Ct. round lab-grown diamond at its center. T

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Art Deco Platinum Ring with 2.82 Ct Lab Grown Diamond and 22 Side Diamonds

Est. $6,773-$8,804

$100

Mynt AuctionsNew York, NY

Diana Vincent Platinum and Diamond Necklace: 48 round diamonds ap. 2.90 cts., with maker's mark, ap. 39.5 dwts. Length 18 1/2 inches.

May 21, 2026

Diana Vincent Platinum and Diamond Necklace

Est. $3,000-$5,000

$1,500

DOYLE Auctioneers & AppraisersNew York, NY

Art Deco Platinum 18.20 Ct Diamond Brooch with 230 European Cuts: Art Deco Platinum 18.20 Ct Diamond Brooch with 230 European Cuts This exquisite Art Deco brooch is crafted in platinum and features an impressive total diamond weight of 18.20 Ct. It is adorned with 2

2 days Left

Art Deco Platinum 18.20 Ct Diamond Brooch with 230 European Cuts

Est. $17,641-$22,933

$100

Mynt AuctionsNew York, NY

Emerald and Diamond Cluster Pendant Necklace in Platinum: Platinum pendant necklace featuring a central rectangular emerald-cut green gemstone within a tiered cluster of round brilliant and tapered baguette diamonds. The pendant is suspended on a platinum ro

1 day Left

Emerald and Diamond Cluster Pendant Necklace in Platinum

Est. $10-$100,000

$110

Gallery 63Atlanta, GA

Art Deco Platinum Brooch with 65 Diamonds and 22 Sapphires: Art Deco Platinum Brooch with 65 Diamonds and 22 Sapphires This exquisite Art Deco brooch features a stunning combination of platinum, diamonds, and sapphires. Weighing 10.1 grams, it is adorned with

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Art Deco Platinum Brooch with 65 Diamonds and 22 Sapphires

Est. $4,459-$5,796

$100

Mynt AuctionsNew York, NY

Platinum Alexandrite and Diamond Cocktail Ring: Platinum cocktail ring featuring an oval-cut alexandrite weighing approximately 0.36 carats in a four-prong setting. The center stone is surrounded by a cluster of round brilliant-cut diamonds, with o

1 day Left

Platinum Alexandrite and Diamond Cocktail Ring

Est. $10-$100,000

$60

Gallery 63Atlanta, GA

A PLATINUM, DIAMOND AND GEM-SET PENDANT/BROOCH: A PLATINUM, DIAMOND AND GEM-SET PENDANT/BROOCH Designed as a partially articulated bow, set across with old European, old mine, transitional and single-cut diamonds, accented by rows of calibré-c

May 19, 2026

A PLATINUM, DIAMOND AND GEM-SET PENDANT/BROOCH

Est. $8,000-$12,000

$8,000

BonhamsLos Angeles, CA

A Pair of Platinum and Diamond Solitaire Stud Earrings: A matched pair of diamond solitaire stud earrings set in platinum. Each earring features a round brilliant-cut colorless stone secured in a six-prong basket setting with platinum friction butterfly ba

1 day Left

A Pair of Platinum and Diamond Solitaire Stud Earrings

Est. $10-$100,000

$10

Gallery 63Atlanta, GA

Platinum 1.54ct Black Opal and 0.50ctw Diamond Cocktail Ring: Vintage platinum cocktail ring featuring an oval cabochon black opal weighing approximately 1.54 carats. The center stone is accented by two shoulder-set baguette diamonds and a partial halo of round

May 20, 2026

Platinum 1.54ct Black Opal and 0.50ctw Diamond Cocktail Ring

Est. $10-$100,000

$100

Gallery 63Atlanta, GA

18K Yellow Gold and Platinum Diamond Cluster Ring: METAL: 18K Yellow Gold/Platinum; APPROXIMATE TOTAL DIAMOND WEIGHT: 0.50 ctw; STAMPED: Pt900, K18, 0.50; CONDITION: Pre-owned, Very Good; ITEM WEIGHT (GRAMS): 3.9 g; MEASUREMENTS: Ring size 5 1/2

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18K Yellow Gold and Platinum Diamond Cluster Ring

Est. $500-$700

$350

Hampton Estate AuctionNew York, NY

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Tiffany & Co. Tiffany True Platinum and Diamond Band Lot

Est. $1,500-$2,000

$1,000

Hampton Estate AuctionNew York, NY

Diamond Bracelet in 18K Gold with Platinum Accents Art Nouveau 7.75 Inch: Diamond Bracelet in 18K Gold with Platinum Accents Art Nouveau 7.75 Inch This Art Nouveau bracelet is crafted from 18K yellow gold with a platinum top and features 17 diamonds totaling approximately 0

1 day Left

Diamond Bracelet in 18K Gold with Platinum Accents Art Nouveau 7.75 Inch

Est. $8,125-$10,562

$100

BidhausNew York, NY

Platinum Diamond Brooch 20.00 Ct E-F VVS-VS 233 Diamonds: Platinum Diamond Brooch 20.00 Ct E-F VVS-VS 233 Diamonds This stunning brooch features an impressive 20.00 carats of diamonds set in luxurious platinum. It showcases a total of 233 diamonds, exhibitin

2 days Left

Platinum Diamond Brooch 20.00 Ct E-F VVS-VS 233 Diamonds

Est. $19,812-$25,755

$100

Mynt AuctionsNew York, NY

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