Results for “18k diamond”

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Diamond and Sapphire 18k Yellow Gold Cocktail Ring by Tiffany Size 6: Diamond and Sapphire 18k Yellow Gold Cocktail Ring by Tiffany Size 6 This authentic Tiffany & Co. cocktail ring is crafted from solid 18k yellow gold and showcases a sparkling arrangement of diamonds

5 days Left

Diamond and Sapphire 18k Yellow Gold Cocktail Ring by Tiffany Size 6

Est. US$4,446-US$5,779

Gorgeous 3.50ct Tanzanite Diamond 18k Yellow Gold Cocktail Ring Size 6: Gorgeous 3.50ct Tanzanite Diamond 18k Yellow Gold Cocktail Ring Size 6 This stunning cocktail ring features a captivating design crafted from 18k yellow gold with a high polished finish. The ring show

5 days Left

Gorgeous 3.50ct Tanzanite Diamond 18k Yellow Gold Cocktail Ring Size 6

Est. US$7,670-US$9,971

18K White Gold Pierced Earrings with Diamond Accents: 18K White Gold Pierced Earrings with Diamond Accents These elegant pierced earrings feature sparkling diamonds set in 18K white gold. Designed for women, they offer a stylish and sophisticated accesso

6 days Left

18K White Gold Pierced Earrings with Diamond Accents

Est. US$2,327-US$3,025

18K WHITE GOLD 1.16CT DIAMOND RING: Sparkling Diamonds allow this ring to continually catch the light. A 0.48 carat Diamond makes a statement at the center, while additional Diamonds totaling 0.68 carats provide an additional touch of l

3 days Left

18K WHITE GOLD 1.16CT DIAMOND RING

Robinhood Auctions

Est. US$1,800-US$7,200

18K WHITE GOLD 1.70CT DIAMOND RING: This bypass ring is beautifully balanced. Sleek and incredibly sophisticated, one end of the design is covered in pave Diamonds while the other includes a series of square-cut Diamonds together, this

3 days Left

18K WHITE GOLD 1.70CT DIAMOND RING

Robinhood Auctions

Est. US$1,400-US$5,600

18K YELLOW GOLD 1.28CT DIAMOND RING: A stunning wrapped setting makes this luxury ring a stylish addition to any jewelry collection. Simple and elegant, it features a 0.61 Diamond center stone and additional square-cut Diamonds totaling

3 days Left

18K YELLOW GOLD 1.28CT DIAMOND RING

Robinhood Auctions

Est. US$1,700-US$6,800

18K YELLOW GOLD 3.20CT DIAMOND RING: This luxury ring features a multi-layered design that is undeniably captivating. Sparkling Diamonds with a total weight of 1.80 carats allow it to shine brightly every time its worn. At the center, a

3 days Left

18K YELLOW GOLD 3.20CT DIAMOND RING

Robinhood Auctions

Est. US$4,500-US$18,000

18K WHITE GOLD 1.30CT DIAMOND RING: A breathtaking design makes this luxury ring impossible to ignore. Chic and incredibly elegant, a 0.85 carat Diamond center stone serves as a stunning focal point. Its accented by additional Diamonds

3 days Left

18K WHITE GOLD 1.30CT DIAMOND RING

Robinhood Auctions

Est. US$2,200-US$8,800

18K WHITE GOLD 7.51CT DIAMOND RING: This this luxury ring features a classically elegant design that will never go out of style. A deep-hued 5.31 carat Diamond center stone serves as a stunning focal point. Additional Diamond accents to

3 days Left

18K WHITE GOLD 7.51CT DIAMOND RING

Robinhood Auctions

Est. US$9,500-US$38,000

18K YELLOW GOLD 2.04CT DIAMOND EARRINGS: These luxury earrings will add a touch of timeless elegance to any outfit. Simple and stylish, the geometric designs come to life thanks to sparkling Diamonds with a total weight of 2.04 carats. Each

3 days Left

18K YELLOW GOLD 2.04CT DIAMOND EARRINGS

Robinhood Auctions

Est. US$3,300-US$13,200

18K White Gold 110 Ct Diamond Necklace with 522 Stones G-H VVS-VS: 18K White Gold 110 Ct Diamond Necklace with 522 Stones G-H VVS-VS This stunning 18K White Gold Necklace features an impressive total diamond weight of 110.00 ct. It is elegantly set with 522 diamonds,

5 days Left

18K White Gold 110 Ct Diamond Necklace with 522 Stones G-H VVS-VS

Est. US$104,715-US$136,129

Yellow Diamond, Diamond, 18k Yellow and White Gold Ring: Yellow Diamond, Diamond, 18k Yellow and White Gold Ring. Featuring one radiant-cut yellow diamond weighing approximately 0.88 ct., accented by full-cut diamonds weighing a total of approximately 0.45

May 15, 2026

Yellow Diamond, Diamond, 18k Yellow and White Gold Ring

Michaan's Auctions

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

Yellow Diamond, Diamond, 18k Yellow and White Gold Ring: Yellow Diamond, Diamond, 18k Yellow and White Gold Ring. Featuring one marquise-cut yellow diamond weighing approximately 0.30 ct., accented by full-cut yellow and near colorless diamonds weighing a t

May 15, 2026

Yellow Diamond, Diamond, 18k Yellow and White Gold Ring

Michaan's Auctions

Est. US$600-US$800

Vintage Retro 5.65ct Aquamarine Diamond Brooch in 18k Yellow Gold Platinum: Vintage Retro 5.65ct Aquamarine Diamond Brooch in 18k Yellow Gold Platinum This vintage retro brooch pin showcases a stunning combination of yellow gold and platinum, featuring a natural aquamarine st

5 days Left

Vintage Retro 5.65ct Aquamarine Diamond Brooch in 18k Yellow Gold Platinum

Est. US$2,002-US$2,602

18K White Gold Pearl and Diamond Linear Drop Pendant: Linear articulated drop pendant crafted in 18K white gold featuring three spherical white pearls. The pearls are connected by small white gold links, each set with a single round brilliant-cut diamond

21 hrs Left

18K White Gold Pearl and Diamond Linear Drop Pendant

Est. US$10-US$100,000

18K Yellow Gold Boulder Opal and Diamond Pendant Necklace: This contemporary pendant necklace features a large freeform boulder opal displaying vibrant blue, green, and violet play-of-color against a dark matrix. The stone is secured in a four-prong 18 karat

21 hrs Left

18K Yellow Gold Boulder Opal and Diamond Pendant Necklace

Est. US$10-US$100,000

GAZDAR 18K YELLOW GOLD 2.10CT DIAMOND BROOCH: This intricate Gazdar brooch is incredibly luxurious. Diamonds with a total weight of 2.10 carats provide plenty of sparkle but its the breathtaking array of multicolored gemstones totaling 6.50 carat

3 days Left

GAZDAR 18K YELLOW GOLD 2.10CT DIAMOND BROOCH

Robinhood Auctions

Est. US$9,000-US$36,000

18K YELLOW GOLD 2.76CT DIAMOND GEOMETRIC NECKLACE: Warm yellow gold sets the tone for this necklace, accented by four round diamonds placed along the chain in tilted square frames. The pendant carries an oval diamond outlined by a crisp octagonal halo

3 days Left

18K YELLOW GOLD 2.76CT DIAMOND GEOMETRIC NECKLACE

Robinhood Auctions

Est. US$3,800-US$15,200

18K Yellow Gold Ruby 3.00 Ct Diamond Ring 1.00 Ct: 18K Yellow Gold Ruby 3.00 Ct Diamond Ring 1.00 Ct This stunning 18K yellow gold ring showcases a captivating central ruby, approximately 3.00 Ct, surrounded by 16 brilliant diamonds totaling approxima

6 days Left

18K Yellow Gold Ruby 3.00 Ct Diamond Ring 1.00 Ct

Est. US$6,227-US$8,095

BVLGARI PARENTESI 18K WHITE GOLD 0.72CT DIAMOND RING: This Bvlgari Parentesi ring is crafted in 18K white gold and features a 14mm wide-band form. Signature bracket-shaped Parentesi motifs repeat across the openworked center, creating a structured patter

3 days Left

BVLGARI PARENTESI 18K WHITE GOLD 0.72CT DIAMOND RING

Robinhood Auctions

Est. US$3,600-US$14,400

WALTHAM 18K YELLOW GOLD 0.75CT DIAMOND PENDANT NECKLACE: This Waltham necklace is incredibly chic. Suspended from an 18 chain, the dramatic pendant is elevated by sparkling Diamonds totaling 0.75 carats. The pendant measures 0.75 long by 0.57 wide and is cr

3 days Left

WALTHAM 18K YELLOW GOLD 0.75CT DIAMOND PENDANT NECKLACE

Robinhood Auctions

Est. US$1,500-US$6,000

18K ROSE GOLD 0.65CT DIAMOND ETERNITY BAND RING: This eternity band ring is perfectly understated. Sleek, stylish, and ideal for everyday wear, it features Diamonds totaling 0.65 carats and will look elegant when stacked with other luxury pieces. Th

3 days Left

18K ROSE GOLD 0.65CT DIAMOND ETERNITY BAND RING

Robinhood Auctions

Est. US$550-US$2,200

18K WHITE GOLD 3.50CT DIAMOND AND SAPPHIRE BROOCH: A chic, contemporary design makes this brooch instantly eye-catching. Diamonds with a total weight of 3.50 carats make it come alive every time it catches the light, while Sapphires totaling 1.25 cara

3 days Left

18K WHITE GOLD 3.50CT DIAMOND AND SAPPHIRE BROOCH

Robinhood Auctions

Est. US$4,200-US$16,800

18K YELLOW GOLD 1.90CT DIAMOND AND RUBY RING: This luxury ring will continually take your breath away. At the center, a vibrant 13.97 carat Burma No Heat Ruby provides a stunning pop of color. Its surrounded by sparkling Diamonds with a total wei

3 days Left

18K YELLOW GOLD 1.90CT DIAMOND AND RUBY RING

Robinhood Auctions

Est. US$4,200-US$16,800

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