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Platinum Necklace With 19ct Old European Cut Diamonds By The Yard: Platinum Necklace With 19ct Old European Cut Diamonds By The Yard This platinum necklace features 48 old European cut diamonds, totaling 19.00 carats. Each diamond is approximately 0.40 carats, showca

5 days Left

Platinum Necklace With 19ct Old European Cut Diamonds By The Yard

Est. $47,658-$61,955

$36,500

Mynt AuctionsNew York, NY

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

May 28, 2026

Platinum Diamond Engagement Ring, GIA

Est. $6,000-$8,000

$4,000

Auctions at ShowplaceAstoria, NY

Platinum and Diamond Bypass Ring: Platinum and Diamond Bypass Ring set with two round brilliant diamonds estimated .90 carats each, j-k color and I-1 clarity with additional smaller round brilliant and baguette diamonds in the setting

May 27, 2026

Platinum and Diamond Bypass Ring

Est. $1,200-$1,800

$800

Fairfield AuctionFelton, CA

Diamond, Platinum Eternity Band: Diamond, Platinum Eternity Band. Featuring French-cut diamonds weighing a total of approximately 0.20 cttw., set in a platinum mounting measuring approximately 2 mm in width. {Size: 5 3/4, Gross Weigh

3 days Left

Diamond, Platinum Eternity Band

Est. $300-$500

$170

Michaan's AuctionsAlameda, CA

GIA Certified Platinum Ring With No Heat Pink Sapphire and Old Mine Cut Diamonds: GIA Certified Platinum Ring With No Heat Pink Sapphire and Old Mine Cut Diamonds This platinum cocktail ring features a vivid pink, no-heat natural cushion-cut sapphire from Madagascar weighing 2.53 c

23 hrs Left

GIA Certified Platinum Ring With No Heat Pink Sapphire and Old Mine Cut Diamonds

Est. $18,083-$23,507

$255

BidhausNew York, NY

1920s Platinum Art Deco Bracelet with Emeralds and 25 Cts Diamonds: 1920s Platinum Art Deco Bracelet with Emeralds and 25 Cts Diamonds Step into the glamour of the 1920s with this exquisite Platinum Art Deco Emerald & Diamond Bracelet. A true masterpiece of vintage je

3 days Left

1920s Platinum Art Deco Bracelet with Emeralds and 25 Cts Diamonds

Est. $42,900-$55,770

$100

Mynt AuctionsNew York, NY

Platinum 42 Inch Marquise Diamond Necklace 33.90 Ct: Platinum 42 Inch Marquise Diamond Necklace 33.90 Ct This stunning Platinum Necklace features a beautiful by-the-yard design adorned with 95 sparkling Marquise Diamonds, totaling approximately 33.90 Ct

5 days Left

Platinum 42 Inch Marquise Diamond Necklace 33.90 Ct

Est. $44,811-$58,254

$34,250

Mynt AuctionsNew York, NY

Platinum Topped 18K Yellow Gold and Rose Cut Diamond Bow Pin Brooch: METAL: 18K Yellow Gold/Platinum; STAMPED: Pictoral marks on pin stem; TESTED: 18K Yellow Gold/Platinum; CONDITION: Pre-owned, Very Good; ITEM WEIGHT (GRAMS): 13.1 g; MEASUREMENTS: Brooch 1 1/2 inch wi

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Platinum Topped 18K Yellow Gold and Rose Cut Diamond Bow Pin Brooch

Hampton Estate AuctionNew York, NY

GORGEOUS 18K & PLATINUM SAPPHIRE DIAMOND EARRINGS: GORGEOUS 18K & PLATINUM SAPPHIRE DIAMOND EARRINGS: One pair of 18 karat white gold and Platinum (marked 950) pierced French wire earring drops. Each drop consists of an inline design with a top diamon

5 days Left

GORGEOUS 18K & PLATINUM SAPPHIRE DIAMOND EARRINGS

Est. $6,000-$7,500

$5,500

Burchard Galleries IncSt. Petersburg, FL

A set of eight Moser Splendid Platinum clear cut glass water goblets, 20th century and later: A set of eight Moser Splendid Platinum clear cut glass water goblets 20th century and later Each with etched factory mark. height 8 3/4in (22.2cm)

May 21, 2026

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

Est. $600-$800

$300

Andrew Jones AuctionsLos Angeles, CA

David Webb Coral Emerald Sapphire Diamond Earrings Platinum Gold: David Webb Coral Emerald Sapphire Diamond Earrings Platinum Gold Discover the stunning elegance of these David Webb earrings, featuring vibrant fluted coral in a bright salmon hue. Each ear clip is be

4 days Left

David Webb Coral Emerald Sapphire Diamond Earrings Platinum Gold

Est. $53,768-$69,898

$41,250

Mynt AuctionsNew York, NY

A jadeite, diamond and platinum brooch: A jadeite, diamond and platinum brooch Featuring two triangular jade tablets measuring approximately 24.18 x 15.90 mm, accented by round brilliant-cut diamonds weighing 0.18 carat in total; length: 2

3 days Left

A jadeite, diamond and platinum brooch

Est. $2,500-$3,500

$1,200

Clars AuctionsOakland, CA

JEAN VITAU Platinum Diamond & Sapphire Bracelet: JEAN VITAU Platinum Diamond & Sapphire Bracelet Item # 13727 Category Bracelets JEAN VITAU Platinum Diamond & Sapphire Bracelet Weighing 67.4 grams Set with 48 Diamonds weighing app. 3.80 Ct. F-G Colo

4 days Left

JEAN VITAU Platinum Diamond & Sapphire Bracelet

Est. $20,000-$30,000

$10,000

Joshua KodnerDania Beach, FL

1960’s Platinum Peridot & Diamond Ring: 1960’s Platinum Peridot & Diamond Ring Item # 13761 Category Rings 1960’s Platinum Peridot & Diamond Ring Weighing 13.4 grams Set with an app. 8.00 Ct. Peridot Along with 18 Diamonds weighing app.

4 days Left

1960’s Platinum Peridot & Diamond Ring

Est. $6,000-$9,000

$3,000

Joshua KodnerDania Beach, FL

Platinum 4.90 Ct GIA Certified Round Brilliant Diamond Ring: Platinum 4.90 Ct GIA Certified Round Brilliant Diamond Ring This exquisite Platinum ring features a stunning GIA Certified 4.90 Ct. Round Brilliant Diamond, showcasing a captivating L color and I1 cla

17 hrs Left

Platinum 4.90 Ct GIA Certified Round Brilliant Diamond Ring

Est. $42,224-$54,891

$100

Mynt AuctionsNew York, NY

Kunzite, Diamond, Platinum Ring: Kunzite, Diamond, Platinum Ring. Featuring one oval-cut kunzite weighing approximately 14.80 cts., accented by full-cut diamonds weighing a total of approximately 0.50 cttw., set in a platinum mountin

3 days Left

Kunzite, Diamond, Platinum Ring

Est. $700-$900

$375

Michaan's AuctionsAlameda, CA

Tiffany 18k Gold and Platinum Diamond Engagement Ring: Tiffany diamond engagement ring in 18k yellow gold and platinum setting for diamond. Diamond approximately 0.94 ct, D color, VVS2 clarity, ideal proportion, with GIA report #11021337081, Oct 17, 2024.

5 days Left

Tiffany 18k Gold and Platinum Diamond Engagement Ring

Est. $5,000-$9,000

$2,500

Kaminski AuctionsBeverly, MA

Rhapsody Tanzanite, Diamond, Platinum Ring: Rhapsody Tanzanite, Diamond, Platinum Ring. Featuring one cushion-cut tanzanite weighing approximately 9.20 cts., accented by four full-cut and ten tapered baguette-cut diamonds weighing a total of ap

3 days Left

Rhapsody Tanzanite, Diamond, Platinum Ring

Est. $1,500-$2,500

$750

Michaan's AuctionsAlameda, CA

A set of ten Moser Splendid Platinum clear cut glass water goblets, 20th century and later: A set of ten Moser Splendid Platinum clear cut glass water goblets 20th century and later Each with etched factory mark. height 8 3/4in (22.2cm)

May 21, 2026

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

Est. $800-$1,200

$400

Andrew Jones AuctionsLos Angeles, CA

Platinum 2.51 Ct. Sapphire & Diamond Ring: Platinum 2.51 Ct. Sapphire & Diamond Ring Item # 13613 Category Rings Platinum 2.51 Ct. Sapphire & Diamond Ring Weighing 17.8 grams Set with a 2.51 Ct. Sapphire in Center Along with app. 3.00 Ct. of D

4 days Left

Platinum 2.51 Ct. Sapphire & Diamond Ring

Est. $10,000-$15,000

$5,000

Joshua KodnerDania Beach, FL

Antique 18K Yellow Gold and Platinum Diamond Eagle Pin Brooch: METAL: 18K Yellow Gold, Platinum; APPROXIMATE TOTAL DIAMOND WEIGHT: 0.14 ctw; STAMPED: French eagle head; CONDITION: Pre-owned, Very Good; ITEM WEIGHT (GRAMS): 20.3 g; MEASUREMENTS: Brooch 2 3/4 inche

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Antique 18K Yellow Gold and Platinum Diamond Eagle Pin Brooch

Est. $2,750-$3,500

$1,800

Hampton Estate AuctionNew York, NY

Art Deco Platinum Sapphire and Diamond Ring: METAL: Platinum; APPROXIMATE TOTAL DIAMOND WEIGHT: 0.66 ctw; GEMSTONES: Sapphire; TESTED: Platinum; CONDITION: Pre-owned, Good; ITEM WEIGHT (GRAMS): 3.8 g; MEASUREMENTS: Ring size 4 3/4; Diamonds and

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Art Deco Platinum Sapphire and Diamond Ring

Est. $1,300-$1,800

$900

Hampton Estate AuctionNew York, NY

David Webb Hammered Link Twist Chain Necklace Platinum 18K Gold 27 Inch: David Webb Hammered Link Twist Chain Necklace Platinum 18K Gold 27 Inch This exquisite necklace features a stunning combination of platinum and 18K yellow gold, showcasing David Webb's signature hamme

2 days Left

David Webb Hammered Link Twist Chain Necklace Platinum 18K Gold 27 Inch

Est. $36,179-$47,032

$100

Mynt AuctionsNew York, NY

Aquamarine, Diamond, Platinum Ring: Aquamarine, Diamond, Platinum Ring. Featuring one emerald-cut aquamarine weighing approximately 1.50 ct., surrounded by sixteen full-cut diamonds weighing a total of approximately 0.50 cttw., set in a

3 days Left

Aquamarine, Diamond, Platinum Ring

Est. $400-$600

$200

Michaan's AuctionsAlameda, CA

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