Results for “1 2 Ct Diamond”

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TIFFANY & CO. PLATINUM AND DIAMOND “SEAGULL” BROOCH: A stylized “Seagull” or chevron-form brooch by Tiffany & Co., pavé-set with approximately (42) round brilliant and single-cut diamonds, the largest measuring about 3.5 mm (approx. 0.1

Feb 22, 2026

TIFFANY & CO. PLATINUM AND DIAMOND “SEAGULL” BROOCH

Thomaston Place Auction Galleries

Est. $1,000-$1,500

4.63 ct Round cut GIA Graded Natural Diamond Pair: 1) Click here to view HD 360 Spinning Image

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4.63 ct Round cut GIA Graded Natural Diamond Pair

Bid Global International Auctioneers

5.01 ct Emerald cut GIA Graded Natural Diamond Pair: 1) Click here to view HD 360 Spinning Image

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5.01 ct Emerald cut GIA Graded Natural Diamond Pair

Bid Global International Auctioneers

5.01 ct Emerald cut GIA Graded Natural Diamond Pair: 1) Click here to view HD 360 Spinning Image

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5.01 ct Emerald cut GIA Graded Natural Diamond Pair

Bid Global International Auctioneers

Graff Platinum and Diamond Ring: One bezel-set oval diamond ap. .90 ct., 20 round and 8 princess-cut diamonds ap. 3.30 cts., signed Graff, no. 13606, ap. 6.2 dwts. Size 5 3/4. With Graff paperwork and signed plastic pouch.

Feb 26, 2026

Graff Platinum and Diamond Ring

DOYLE Auctioneers & Appraisers

Est. $6,000-$8,000

5.00 ct Emerald cut GIA Graded Natural Diamond Pair: 1) Click here to view HD 360 Spinning Image

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5.00 ct Emerald cut GIA Graded Natural Diamond Pair

Bid Global International Auctioneers

4.90 ct Emerald cut GIA Graded Natural Diamond Pair: 1) Click here to view HD 360 Spinning Image

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4.90 ct Emerald cut GIA Graded Natural Diamond Pair

Bid Global International Auctioneers

5.01 ct Emerald cut GIA Graded Natural Diamond Pair: 1) Click here to view HD 360 Spinning Image

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5.01 ct Emerald cut GIA Graded Natural Diamond Pair

Bid Global International Auctioneers

5.00 ct Emerald cut GIA Graded Natural Diamond Pair: 1) Click here to view HD 360 Spinning Image

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5.00 ct Emerald cut GIA Graded Natural Diamond Pair

Bid Global International Auctioneers

PR 14K GOLD EMERALD AND DIAMOND STUD EARRINGS WITH REMOVABLE JACKETS: A pair of 14K yellow gold stud earrings set with (2) round faceted emeralds, each approximately 0.50 ct, in six-prong mounts. Accompanied by removable diamond “flower” jackets, each set wi

Feb 22, 2026

PR 14K GOLD EMERALD AND DIAMOND STUD EARRINGS WITH REMOVABLE JACKETS

Thomaston Place Auction Galleries

Est. $600-$800

5.00 ct Emerald cut GIA Graded Natural Diamond Pair: 1) Click here to view HD 360 Spinning Image

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5.00 ct Emerald cut GIA Graded Natural Diamond Pair

Bid Global International Auctioneers

Three Stone Diamond Engagement or Anniversary Ring in 14k Yellow Gold: In 14k yellow gold. Center diamond is 3/4 ct surrounded by two 1/4 ct diamonds. They are all high quality diamonds, VS clarity/H color and excellent cut for lots of sparkle. Size 6 1/2. 6.6g.

15 hrs Left

Three Stone Diamond Engagement or Anniversary Ring in 14k Yellow Gold

Eric's Estate & Jewelry

Est. $4,840-$7,260

5.27 ct Emerald cut GIA Graded Natural Diamond Pair: 1) Click here to view HD 360 Spinning Image

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5.27 ct Emerald cut GIA Graded Natural Diamond Pair

Bid Global International Auctioneers

5.00 ct Emerald cut GIA Graded Natural Diamond Pair: 1) Click here to view HD 360 Spinning Image

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5.00 ct Emerald cut GIA Graded Natural Diamond Pair

Bid Global International Auctioneers

5.02 ct Emerald cut GIA Graded Natural Diamond Pair: 1) Click here to view HD 360 Spinning Image

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5.02 ct Emerald cut GIA Graded Natural Diamond Pair

Bid Global International Auctioneers

4.61 ct Emerald cut GIA Graded Natural Diamond Pair: 1) Click here to view HD 360 Spinning Image

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4.61 ct Emerald cut GIA Graded Natural Diamond Pair

Bid Global International Auctioneers

Sapphire, Diamond, 14k Yellow Gold Necklace: Sapphire, Diamond, 14k Yellow Gold Necklace. Featuring one marquise-cut sapphire weighing approximately 0.75 ct., accented by nine full-cut diamonds weighing a total of approximately 0.25 cttw., set i

4 days Left

Sapphire, Diamond, 14k Yellow Gold Necklace

Michaan's Auctions

Est. $1,500-$2,500

5.00 ct Oval cut GIA Graded Natural Diamond Pair: 1) Click here to view HD 360 Spinning Image

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5.00 ct Oval cut GIA Graded Natural Diamond Pair

Bid Global International Auctioneers

5.00 ct Emerald cut GIA Graded Natural Diamond Pair: 1) Click here to view HD 360 Spinning Image

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5.00 ct Emerald cut GIA Graded Natural Diamond Pair

Bid Global International Auctioneers

4.02 ct Oval cut GIA Graded Natural Diamond Pair: 1) Click here to view HD 360 Spinning Image

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4.02 ct Oval cut GIA Graded Natural Diamond Pair

Bid Global International Auctioneers

5.02 ct Oval cut GIA Graded Natural Diamond Pair: 1) Click here to view HD 360 Spinning Image

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5.02 ct Oval cut GIA Graded Natural Diamond Pair

Bid Global International Auctioneers

Antique Gold, Silver, Blue Enamel and Diamond Serpent Bangle Bracelet: 2 old-mine cut diamonds ap. .70 ct., 35 cushion-shaped and old-mine cut diamonds ap. 1.95 cts., small old-mine and rose-cut diamonds, small round cabochon ruby eyes, c. 1840, minor enamel loss, ap. 38

Feb 26, 2026

Antique Gold, Silver, Blue Enamel and Diamond Serpent Bangle Bracelet

DOYLE Auctioneers & Appraisers

Est. $5,000-$7,000

4.02 ct Emerald cut GIA Graded Natural Diamond Pair: 1) Click here to view HD 360 Spinning Image

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4.02 ct Emerald cut GIA Graded Natural Diamond Pair

Bid Global International Auctioneers

5.00 ct Emerald cut GIA Graded Natural Diamond Pair: 1) Click here to view HD 360 Spinning Image

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5.00 ct Emerald cut GIA Graded Natural Diamond Pair

Bid Global International Auctioneers

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