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66.55ctw Tanzanite, 18.30ctw Diamond, Plat/18K Necklace: 66.55ctw Pear-Cut Tanzanite, 18.30ctw VS1-SI1/G-I Diamond and Platinum/18K White Gold 18" Cocktail Necklace - THIS ITEM WILL COME WITH A $124,000 INSURANCE VALUATION REPORT. A spectacular high jewelry

21 hrs Left

66.55ctw Tanzanite, 18.30ctw Diamond, Plat/18K Necklace

GWS Auctions Inc.

Est. US$122,000-US$124,000

Tanzanite and Diamond Bunny Brooch/Pendant: Tanzanite and Diamond Bunny Brooch/Pendant14k yellow gold, sterling silver, the brooch mounted with a pear-cut tanzanite weighing approximately 12.50 carats, accented by round brilliant-cut diamonds w

2 days Left

Tanzanite and Diamond Bunny Brooch/Pendant

New Orleans Auction Galleries

Est. US$1,800-US$2,500

US$1,700(1 bid)

14K Yellow Gold Tanzanite and Diamond Necklace 680 Ct: 14K Yellow Gold Tanzanite and Diamond Necklace 680 Ct This exquisite necklace is crafted from 14K yellow gold and features stunning tanzanite briolettes totaling approximately 680.00 ct. The piece is

2 days Left

14K Yellow Gold Tanzanite and Diamond Necklace 680 Ct

Est. US$3,107-US$4,039

16.00ctw Tanzanite, 2.65ctw Diamond and 18K Earrings: 16.00ctw Tanzanite, 2.65ctw VS1-SI1/G-J Diamond and 18K White Gold 2.25" Dangle Earrings - This item will come with a $44,000 insurance valuation report. Showcasing approximately 16.00 carats total we

21 hrs Left

16.00ctw Tanzanite, 2.65ctw Diamond and 18K Earrings

GWS Auctions Inc.

Est. US$43,000-US$44,000

19.65ct Tanzanite, 2.40ctw Diamond, 18K Ring/Pendant: 19.65ct Tanzanite, 2.40ctw VS1-SI1/G-H Diamond and 18K White Gold Convertible Ring/Pendant - This item will come with a $54,000 insurance valuation report. An extraordinary high-jewelry masterpiece ce

21 hrs Left

19.65ct Tanzanite, 2.40ctw Diamond, 18K Ring/Pendant

GWS Auctions Inc.

Est. US$53,000-US$54,000

13.00ct Oval-Cut Block D Tanzanite: 13.00ct Oval-Cut Block D Tanzanite - THIS ITEM WILL COME WITH AN $8,000 INSURANCE VALUATION REPORT IN THE WINNING BIDDER'S NAME. An exceptional loose oval-cut tanzanite of impressive 13.00 carats (app

21 hrs Left

13.00ct Oval-Cut Block D Tanzanite

GWS Auctions Inc.

Est. US$7,500-US$8,000

14k Gold Tanzanite & Diamond Ring: 14k Gold Tanzanite & Diamond Ring. This ring includes one (1) cushion shaped zoisite tanzanite with a modified brilliant cut (9.9 x 6 x 4mm), weighing 1.73 cts. This ring also includes twelve (12)

17 hrs Left

14k Gold Tanzanite & Diamond Ring

Stuart Kingston

Est. US$2,000-US$4,000

6.88CT TANZANITE & DIAMOND RING 14K GOLD SIZE 8: FINE NATURAL TANZANITE DARK PURPLE BLUE 6.88 CARAT AA GEM. 10MM BY 10MM. SET IN 14K WHITE & YELLOW GOLD MOUNTING. MARKED "14K"; WEIGHS 8.7 GRAMS. 24 BAGUETTE DIAMONDS 1 CARAT TOTAL. RING SIZE 8. EXCEL

2 days Left

6.88CT TANZANITE & DIAMOND RING 14K GOLD SIZE 8

Imperial Auction

Est. US$5,000-US$6,000

Estate 14k White Gold Tanzanite Diamond Band Ring 6 Carats Size 8.5: Estate 14k White Gold Tanzanite Diamond Band Ring 6 Carats Size 8.5 This exquisite Estate band ring features a striking 3 carat oval cut intense blue tanzanite at its center, complemented by three row

18 hrs Left

Estate 14k White Gold Tanzanite Diamond Band Ring 6 Carats Size 8.5

Est. US$9,087-US$11,813

JEWELRY. 10.5ct Tanzanite, Diamond and 14kt Gold: Ring. 14kt white gold ring displaying a central 10.5ct faceted Tanzanite surrounded by (12) round brilliant cut diamonds and (4) straight diamond baguettes. Total approx. diamond weight of 1.80cttw. S

Apr 12, 2026

JEWELRY. 10.5ct Tanzanite, Diamond and 14kt Gold

Clarke Auction Gallery

Est. US$8,000-US$12,000

17 hrs Left

TIFFANY&CO. SOREST TANZANITE DIAMOND RING

Est. US$19,425-US$28,490

2.4CT NATURAL TANZANITE RING DIAMONDS &14K GOLD 7G: 2.40 CARAT OVAL PURPLE BLUE NATURAL TANZANITE. RING SET WITH 1.25 CARATS OF G-VS DIAMONDS. 14K YELLOW GOLD RING SIZE 8 AND WEIGHS 7.2 GRAMS. WITH IMPERIAL AUCTION THE COST FOR PACKING AND SHIPPING VIA

2 days Left

2.4CT NATURAL TANZANITE RING DIAMONDS &14K GOLD 7G

Imperial Auction

Est. US$1,500-US$2,000

Ladies Tanzanite and Diamond 14k White Gold Ring Size 8.5: Ladies Tanzanite and Diamond 14k White Gold Ring Size 8.5. Includes one transparent medium-dark bluish-violet 4.69ct tanzanite zoisite measuring 11x9x6.5mm. It is surrounded by (24) round brilliant cu

6 days Left

Ladies Tanzanite and Diamond 14k White Gold Ring Size 8.5

MBA Seattle Auction House

Est. US$1,000-US$2,000

Dyach 18K White Gold Tanzanite Diamond Ring 20.15 ct Size 7.5: Dyach 18K White Gold Tanzanite Diamond Ring 20.15 ct Size 7.5 This exquisite ring features a stunning tanzanite gemstone set in luxurious 18K white gold, enhanced with sparkling diamonds. The tanzanit

3 days Left

Dyach 18K White Gold Tanzanite Diamond Ring 20.15 ct Size 7.5

Est. US$41,405-US$53,826

Tanzanite and Diamond 18K Yellow Gold Ring with Approx 25 Ct Gemstone: Tanzanite and Diamond 18K Yellow Gold Ring with Approx 25 Ct Gemstone This ring features a substantial 25.00 carat tanzanite centerpiece set in 18K yellow gold. It is accented by approximately 320 rou

2 days Left

Tanzanite and Diamond 18K Yellow Gold Ring with Approx 25 Ct Gemstone

Est. US$13,559-US$17,626

18K Yellow Gold Tanzanite Diamond 3-Stone Ring: 18K Yellow Gold Tanzanite and Diamond Three-Stone Ring, featuring one prong set cushion brilliant cut tanzanite weighing approx. 2.65 carats, further adorned with two prong set round brilliant cut dia

May 28, 2026

18K Yellow Gold Tanzanite Diamond 3-Stone Ring

Auctions at Showplace

Est. US$3,000-US$5,000

10K Yellow Gold Tanzanite Cluster Ring: A 10k yellow gold tanzanite cluster ring. Ring size 8.5, weight approx. 2.71 grams.

2 days Left

10K Yellow Gold Tanzanite Cluster Ring

Keystone Auction LLC

Est. US$200-US$250

2026

K18WG FLOWER TANZANITE NECKLACE

2 days Left

BLUE TANZANITE DIAMOND STATEMENT RING

Est. US$3,825-US$5,610

Harbor Diamonds 14K Yellow Gold Tanzanite Diamond Halo Necklace 16 Inch: Harbor Diamonds 14K Yellow Gold Tanzanite Diamond Halo Necklace 16 Inch This stunning Tanzanite Diamond Halo Link Collar Necklace is crafted from 14 karat yellow gold and features a contemporary desig

14 hrs Left

Harbor Diamonds 14K Yellow Gold Tanzanite Diamond Halo Necklace 16 Inch

Est. US$4,251-US$5,526

18K Yellow Gold Tanzanite and Diamond Halo Stud Earrings: These 18K yellow gold stud earrings feature a matched pair of natural round mixed-cut tanzanites. Each central stone is surrounded by a halo of round brilliant-cut diamonds. The earrings are secured w

5 days Left

18K Yellow Gold Tanzanite and Diamond Halo Stud Earrings

Est. US$10-US$100,000

2.59 CARAT NATURAL TANZANITE RING 14K GOLD: PEAR SHAPE NATURAL TANZANITE 2.59 CARATS IN 14K YELLOW RING SIZE 6 1/2. WEIGHS 3.4 GRAMS. BRIGHT CLEAN PURPLE BLUE TANZANITE.. WITH IMPERIAL AUCTION THE COST FOR PACKING AND SHIPPING VIA USPS IN THE U

2 days Left

2.59 CARAT NATURAL TANZANITE RING 14K GOLD

Imperial Auction

Est. US$900-US$1,200

14k Yellow Gold and Tanzanite Elongated Cushion East West Ring Size 7: 14k Yellow Gold and Tanzanite Elongated Cushion East West Ring, Size 7. Blue tanzanite center measuring approximately 11.6mm x 9.4mm x 8.4mm and weighing approximately 6.61 carats. Marked 14k with mak

20 hrs Left

14k Yellow Gold and Tanzanite Elongated Cushion East West Ring Size 7

Carnegie's Auction Gallery

Est. US$3,000-US$4,000

Platinum Ring 2.99ct Oval Violet Blue Tanzanite Diamond Cocktail: Platinum Ring 2.99ct Oval Violet Blue Tanzanite Diamond Cocktail This exquisite cocktail ring is crafted from solid platinum and features a stunning 2.99 carat total weight of natural gemstones. The c

2 days Left

Platinum Ring 2.99ct Oval Violet Blue Tanzanite Diamond Cocktail

Est. US$2,964-US$3,853

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