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14K Gold Tanzanite Ring: A size 5.75 ring in yellow gold marked 14k with two trillion cut tanzanite gemstones and diamond accents. The ring weighs 3.4 grams.

3 days Left

14K Gold Tanzanite Ring

Est. $200-$400

$100

Cordier AuctionsHarrisburg, PA

Tanzanite, Diamond, 14k Yellow Gold Necklace: Tanzanite, Diamond, 14k Yellow Gold Necklace. Featuring one oval-cut tanzanite weighing approximately 1.70 ct., accented by twenty-seven full-cut diamonds weighing a total of approximately 1.00 cttw.,

4 days Left

Tanzanite, Diamond, 14k Yellow Gold Necklace

Est. $500-$700

$250

Michaan's AuctionsAlameda, CA

18K White Gold Square Step Cut Tanzanite and Diamond Ring: METAL: 18K White Gold; APPROXIMATE TOTAL DIAMOND WEIGHT: 0.50 ctw; GEMSTONES: Tanzanite approx. 3.68 carats, Weight estimated by formula; STAMPED: 18K, 5.0, Maker's mark; CONDITION: Pre-owned, Good; I

18 hrs Left

18K White Gold Square Step Cut Tanzanite and Diamond Ring

Est. $1,100-$1,400

$700

Hampton Estate AuctionNew York, NY

Tanzanite, Diamond, 18k White Gold Ring: Tanzanite, Diamond, 18k White Gold Ring Centering one oval-cut tanzanite weighing approximately 10.65 cts., accented by numerous round brilliant-cut diamonds weighing a total of approximately 0.80 ctt

6 days Left

Tanzanite, Diamond, 18k White Gold Ring

Est. $3,000-$5,000

$1,500

Fine Estate, Inc. San Rafael, CA

White Gold, Tanzanite and Diamond Necklace: 18 kt., one pear-shaped tanzanite ap. 3.65 cts., 3 pear and 34 marquise and 3 pear-shaped tanzanites, 101 round and 6 marquise-shaped diamonds ap. 6.60 cts., signed Italy, ap. 24.8 dwts. Length 17 1/2

May 21, 2026

White Gold, Tanzanite and Diamond Necklace

Est. $3,000-$5,000

$1,500

DOYLE Auctioneers & AppraisersNew York, NY

Tanzanite, Diamond, Platinum Ring: Tanzanite, Diamond, Platinum Ring Centering a rectangular step-cut tanzanite weighing approximately 16.90 cts., accented by eighteen baguette-cut and one hundred-ten round brilliant-cut diamonds weigh

6 days Left

Tanzanite, Diamond, Platinum Ring

Est. $3,000-$5,000

$1,500

Fine Estate, Inc. San Rafael, CA

Pair of Tanzanite, Diamond, Oxidized Silver Earrings: Pair of Tanzanite, Diamond, Oxidized Silver Earrings. Each featuring numerous oval-cut tanzanites, accented by round-cut diamonds, set in an oxidized silver mounting measuring approximately 71 x 22 mm

4 days Left

Pair of Tanzanite, Diamond, Oxidized Silver Earrings

Est. $1,200-$1,600

$600

Michaan's AuctionsAlameda, CA

Tanzanite, Diamond, 14k Yellow Gold Ring: Tanzanite, Diamond, 14k Yellow Gold Ring. Featuring one round-cut tanzanite weighing approximately 1.00 ct., accented by tapered baguette-cut and single-cut diamonds weighing a total of approximately

4 days Left

Tanzanite, Diamond, 14k Yellow Gold Ring

Est. $300-$500

$150

Michaan's AuctionsAlameda, CA

Tanzanite, Diamond, 18k White Gold Ring: Tanzanite, Diamond, 18k White Gold Ring Centering an oval-cut tanzanite weighing approximately 10.93 cts., accented by four pear-cut and two marquise-cut diamonds weighing a total of approximately 0.8

6 days Left

Tanzanite, Diamond, 18k White Gold Ring

Est. $3,000-$5,000

$1,500

Fine Estate, Inc. San Rafael, CA

4 days Left

TANZANITE DIAMOND NECKLACE

Est. $7,950-$11,660

$25

NY Elizabeth Beverly Hills, CA

Tanzanite, Diamond, 14k Yellow Gold Ring: Tanzanite, Diamond, 14k Yellow Gold Ring. Featuring one oval-cut tanzanite weighing approximately 3.15 cts., accented by twenty-six full-cut diamonds weighing a total of approximately 0.75 cttw., set

4 days Left

Tanzanite, Diamond, 14k Yellow Gold Ring

Est. $800-$1,200

$400

Michaan's AuctionsAlameda, CA

Tanzanite, Diamond, Emerald, Silver Ring: Tanzanite, Diamond, Emerald, Silver Ring. Featuring one oval shaped tanzanite cabochon measuring approximately 12.3 x 9.1 mm, accented by tapered baguette-cut emeralds, further enhanced by single-cut

4 days Left

Tanzanite, Diamond, Emerald, Silver Ring

Est. $300-$500

$150

Michaan's AuctionsAlameda, CA

Tanzanite, Diamond, Platinum Ring: Tanzanite, Diamond, Platinum Ring Featuring a cushion-shape tanzanite weighing approximately 6.60 cts., accented by sixteen round brilliant-cut diamonds weighing a total of approximately 1.25 cttw., s

6 days Left

Tanzanite, Diamond, Platinum Ring

Est. $2,000-$3,000

$1,000

Fine Estate, Inc. San Rafael, CA

4 days Left

ROUND BLUE TANZANITE CUSHION DIAMOND HALO STATEMENT RING

Est. $29,025-$42,570

$25

NY Elizabeth Beverly Hills, CA

5.85ctw Tanzanite, 4.70ctw Diamond, 18K 2.5" Earrings: 5.85ctw Tanzanite, 4.70ctw Rose Cut Diamond and 18K White Gold 2.5" Drop Earrings - THIS ITEM WILL COME WITH A $22,000 INSURANCE VALUATION REPORT. A breathtaking display of artistry and color, these e

May 30, 2026

5.85ctw Tanzanite, 4.70ctw Diamond, 18K 2.5" Earrings

Est. $21,000-$22,000

$2,600

GWS Auctions Inc.Maitland, FL

A platinum tanzanite and diamond ring,: A platinum tanzanite and diamond ring, the rectangular cushion shape tanzanite, estimated to weigh approximately 18.00ct, claw set to a diamond halo surround, with diamond set split shoulders leading

Jun 02, 2026

A platinum tanzanite and diamond ring,

Est. £8,000-£12,000

£4,800

Sworders Fine Art AuctioneersEssex, England

14k Yellow Gold Cornflower Blue Tanzanite Oval Gemstone Pierced Earring Studs: 14k tested framing with 14k hallmarked backs, faceted 5x4mm oval Tanzanite gemstones, 1.78 grams combined weight, Beautiful!

2 hrs Left

14k Yellow Gold Cornflower Blue Tanzanite Oval Gemstone Pierced Earring Studs

Est. $10-$500

$45

Atlee Raber AuctionsDundee, OH

18K WHITE GOLD LADIES RING W/ TANZANITE & DIAMOND: One electronically tested 18KT white gold ladies cast tanzanite & diamond ring. Condition is new, good workmanship. The featured tanzanite is set within a diamond bezel, supported by diamond set shoul

May 30, 2026

18K WHITE GOLD LADIES RING W/ TANZANITE & DIAMOND

Est. $2,550-$10,000

$675

Florida Estate Sales Inc.Tallahassee, FL

Tanzanite, Diamond, 18k Yellow Gold Ring: Tanzanite, Diamond, 18k Yellow Gold Ring Featuring an oval-cut tanzanite weighing approximately 11.40 cts., accented by six round brilliant-cut diamonds weighing a total of approximately 0.18 cttw., s

6 days Left

Tanzanite, Diamond, 18k Yellow Gold Ring

Est. $2,000-$3,000

$1,000

Fine Estate, Inc. San Rafael, CA

10.00ctw Tanzanite, 2.50ctw Diamond, 18K 2.25" Earrings: 10.00ctw Tanzanite, 2.50ctw VS1-VS2/G-H Diamond and 18K White Gold 2.25" Drop Earrings - THIS ITEM WILL COME WITH A $28,000 INSURANCE VALUATION REPORT. A captivating expression of elegance and vibrant

May 30, 2026

10.00ctw Tanzanite, 2.50ctw Diamond, 18K 2.25" Earrings

Est. $27,000-$28,000

$3,500

GWS Auctions Inc.Maitland, FL

7.66 TANZANITE PLATINUM LADIES RING W/ DIAMONDS: Platinum (PLAT) natural tanzanite zoisite and diamond ring. Two (2) rectangular cushion cut natural tanzanite zoisite gemstones are mounted in the center of the ring. Round brilliant cut diamonds acce

May 30, 2026

7.66 TANZANITE PLATINUM LADIES RING W/ DIAMONDS

Est. $4,000-$10,000

$950

Florida Estate Sales Inc.Tallahassee, FL

GIA 4.28ct Tanzanite VS2 Diamond Platinum Ring: Featured in this lot is this 4.28ct tanzanite VS2 diamond platinum ring with GIA and GGA paperwork. The ring is polished, stamped, and tested platinum construction that is marked as follows: Oscar Fri

5 days Left

GIA 4.28ct Tanzanite VS2 Diamond Platinum Ring

Est. $20,000-$30,000

$3,750

North American Auction Co.Bozeman, MT

Tiffany & Co Paper Flowers Pendant Necklace Platinum Diamonds Tanzanite 16 in: Tiffany & Co Paper Flowers Pendant Necklace Platinum Diamonds Tanzanite 16 in Elevate your style with this exquisite Tiffany & Co. Paper Flowers Diamond and Tanzanite Pendant Necklace. Expertly crafte

14 hrs Left

Tiffany & Co Paper Flowers Pendant Necklace Platinum Diamonds Tanzanite 16 in

Est. $4,030-$5,239

$100

Mynt AuctionsNew York, NY

PLATINUM 0.30CT DIAMOND AND TANZANITE NECKLACE: This exquisite necklace will add a touch of opulence to any ensemble. Suspended from a sleek 19 box chain, the shimmering platinum pendant comes to life thanks to a 12.66 carat tanzanite gemstone and

4 days Left

PLATINUM 0.30CT DIAMOND AND TANZANITE NECKLACE

Est. $3,600-$14,400

$3,500

Robinhood AuctionsLas Vegas, NV

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