Results for “opal 18k”

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Black Opal 18K Yellow Gold Convertible Pendant and Brooch 2 Inch 25 Ct: Black Opal 18K Yellow Gold Convertible Pendant and Brooch 2 Inch 25 Ct This is a pre-owned pendant and brooch crafted from 18K yellow gold, featuring an approximately 25.00 carat black opal. The piece

Sep 4, 2026

Black Opal 18K Yellow Gold Convertible Pendant and Brooch 2 Inch 25 Ct

Est.

US$8,431

-

US$10,117

US$2,650

Diamond DepotNew York, NY

Antique Victorian 18k Gold Opal Diamond Dome Ring 1.02ct: Antique Victorian 18k Gold Opal Diamond Dome Ring 1.02ct This stunning Antique Victorian ring showcases a large natural opal at its center, featuring an oval cabochon cut with a beautiful play of oran

4 mins Left

Antique Victorian 18k Gold Opal Diamond Dome Ring 1.02ct

Est.

US$3,913

-

US$5,086

US$100

BidhausNew York, NY

Authentic! Chaumet 18k Rose Gold Attrape Moi Diamond Pink Opal Necklace: Crafted in luminous 18k rose gold, this Chaumet Attrape-Moi necklace captures delicate elegance. A soft pink opal cabochon glows at the center, framed by fluttering diamond-set wings. Romantic and ref

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Authentic! Chaumet 18k Rose Gold Attrape Moi Diamond Pink Opal Necklace

US$2,338

Jasper52New York, NY

VICTORIAN GOLD OPAL BROOCH 18K YELLOW LARGE CURVED SHAPE ENAMEL DESIGN: This is a gorgeous Victorian Era piece that exudes classic elegance. Crafted from 18k yellow gold, this brooch features a stunning multicolor opal cabochon set in a prong setting, ensuring that it is

6 days Left

VICTORIAN GOLD OPAL BROOCH 18K YELLOW LARGE CURVED SHAPE ENAMEL DESIGN

Est.

US$10,113

-

US$11,303

US$8,300

Modern JewelryValley Village, CA

Size 9 .20ct Pear Cut White Opal in 18K Gold Plated Ring: Size 9 .20ct Pear Cut White Opal in 18K Gold Plated Ring. Please view photos for further details.

3 days Left

Size 9 .20ct Pear Cut White Opal in 18K Gold Plated Ring

Est.

US$150

-

US$250

US$80

Weatherham Estate TreasuresCobourg, ON

18K (18-karat) Yellow Gold Necklace with Opal Card, Total Weight 5.7g, 39cm, Jewelry: --- Catalog ---Category: SizeWeight: 5.7g / 0.2oz.Pendant Size: 26mm x 18mm / 1.02'' x 0.7''Neck Circumference: 39 cm / 15.35''Category: DesignColor: Yellow goldMetal: GoldStone: OpalGender: WomenMate

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18K (18-karat) Yellow Gold Necklace with Opal Card, Total Weight 5.7g, 39cm, Jewelry

US$1,300

IntervendueMIAMI, FL

Beautiful Natural Fire Opal 2.16 CT Ring With Natural Diamond and 18k Gold: Title: Beautiful Natural Fire Opal 2.16 CT Ring With Natural Diamond and 18k Gold Description: Beautiful Natural Fire Opal Ring With Diamonds and 18k Gold. 2.16 CTS. Natural Fire Opal

Beautiful Natural Fire Opal 2.16 CT Ring With Natural Diamond and 18k Gold

Est. —

£375

William GeorgeDunstable

5 days Left

OPAL DESIGN NECKLACE WHITEGOLD PENDANT DIAMOND

Est.

US$2,850

-

US$4,180

US$25

NY Elizabeth Beverly Hills, CA

Antique 2.20ct Opal, 1.30ctw Diamond and 18K Ring: Antique 2.20ct Opal, 1.30ctw SI1-SI2/G-H Diamond and 18K Yellow Gold English Ring - A beautiful example of antique English craftsmanship, this elegant ring showcases the timeless allure of opal and di

Sep 5, 2026

Antique 2.20ct Opal, 1.30ctw Diamond and 18K Ring

Est.

US$6,500

-

US$7,000

US$800

GWS Auctions Inc.Maitland, FL

A Larry Vasquez gold cuff bracelet and ring set, 'Healing' and 'From Here to There': Larry Vasquez Mescalero Apache/Mayan/Aztec, (b. 1947), a bracelet and ring set, 2003, the 22k gold cuff titled 'From Here to There', set with opals, sapphires and diamonds (approximately 1.15 carats,

2 days Left

A Larry Vasquez gold cuff bracelet and ring set, 'Healing' and 'From Here to There'

Est.

US$20,000

-

US$30,000

US$20,000

BonhamsLos Angeles, CA

18K White Gold Ladies Pendant with 13.73ct Australian Opal and 0.37ct tw Adjacent Diamonds: Retail: $7,500.00 ****** 18K White Gold Ladies Pendant with 13.73ct Australian Opal and 0.37ct tw Adjacent Diamonds ****** Size: 18 / Metal: 18K White Gold / Total Item Weight: 9.9 Grams / Country Mad

6 days Left

18K White Gold Ladies Pendant with 13.73ct Australian Opal and 0.37ct tw Adjacent Diamonds

Est.

US$7,250

-

US$8,500

US$50

Riverside GalleriesArcadia, CA

Vintage 18k Yellow Gold Opal Diamond Bombe Cocktail Ring 1.40ctw: Vintage 18k Yellow Gold Opal Diamond Bombe Cocktail Ring 1.40ctw This exquisite vintage bombe cocktail ring showcases a stunning combination of 18k yellow gold, opal, and diamonds, making it a perfect

3 days Left

Vintage 18k Yellow Gold Opal Diamond Bombe Cocktail Ring 1.40ctw

Est.

US$3,913

-

US$5,086

US$100

BidhausNew York, NY

Star Jewelry Necklace Opal Quartz Diamond Winter Planet 2020 18K Yg: Star Jewelry Necklace Opal Quartz Diamond Winter Planet 2020 18K Yg 18k Yellow Gold Star Jewelry Necklace showcases an exquisite combination of natural opal, quartz, and diamond. The Winter Planet col

Sep 9, 2026

Star Jewelry Necklace Opal Quartz Diamond Winter Planet 2020 18K Yg

Est.

US$1,025

-

US$1,250

US$270

SEUYCORaleigh, NC

A pair of gold drop earrings with opals and diamonds: 18k white gold, eachwith a pear shaped, cabochon cut opal suspended from a diamonds line. Round-shaped, brilliant-cut diamonds, with an estimated total weight of approx. 0.60 ct, colour H, clarity I,

Sep 22, 2026

A pair of gold drop earrings with opals and diamonds

Est.

€2,500

-

€3,000

€2,000

Bertolami Fine Art s.r.l.Rome, RM

Emerald, Opal, and Ruby Ring in 18k Yellow Gold: In 18k Yellow Gold. Contains high quality natural 3.1mm gemstones: Emerald, Opal, and Ruby, all with intense color. 12mm wide at widest point. Size 5.5. 4.4g.

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Emerald, Opal, and Ruby Ring in 18k Yellow Gold

Est.

US$1,880

-

US$2,821

US$850

Eric's Estate & JewelryPunta Gorda, FL

18K Rose Gold 0.75ct Diamond and Carved Opal Fish Ring: This exquisite ring is an artistic piece that will continually take your breath away. At the center, a carved Opal in the shape of a fish provides this piece with a luminous quality. Diamonds with a t

4 days Left

18K Rose Gold 0.75ct Diamond and Carved Opal Fish Ring

Est.

US$5,000

-

US$6,000

US$3,500

Eastern European Art Gallery IncBroomall, PA

Rare! Chopard 18k Rose Gold Happy Hearts Diamond Pink Opal Bracelet: Rare Chopard Happy Hearts bracelet crafted in 18k rose gold, featuring a large pink opal heart paired with a smaller heart enclosing a floating diamond. Feminine, modern, and charming, it captures Cho

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Rare! Chopard 18k Rose Gold Happy Hearts Diamond Pink Opal Bracelet

US$4,000

Jasper52New York, NY

18K Gold Ring with Opal Emeralds and Diamond Accents: 18K Gold Ring with Opal Emeralds and Diamond Accents An 18K yellow gold ring set with opal, emerald, and diamond accents. The ring weighs 10.1 grams and is pre-owned. It features an approximate 5.00 c

20 hrs Left

18K Gold Ring with Opal Emeralds and Diamond Accents

Est.

US$4,642

-

US$5,571

US$2,100

Diamond DepotNew York, NY

ANTIQUE ART DECO PLATINUM & 18K YELLOW GOLD AUSTRALIAN FIRE OPAL PIN BROOCH: ANTIQUE ART DECO PLATINUM & 18K YELLOW GOLD AUSTRALIAN FIRE OPAL PIN BROOCH Antique Art Deco Platinum & 18k Yellow Gold Australian Fire Opal Pin Brooch Size: Over 1 1/4" Wide by 1 1/8" Tall Weight is

Sep 6, 2026

ANTIQUE ART DECO PLATINUM & 18K YELLOW GOLD AUSTRALIAN FIRE OPAL PIN BROOCH

Est.

US$5,091

-

US$5,690

US$4,150

Modern JewelryValley Village, CA

18K (18-karat) Yellow Gold Necklace with Opal and Diamond (carat mark not specified). Includes card.: --- Catalog ---Category: SizeWeight: 3.7g / 0.13oz.Pendant Size: 12mm x 11mm / 0.47'' x 0.43''Neck Circumference: 50 cm / 19.68''Category: DesignColor: Yellow goldMetal: GoldStone: Diamond, OpalGender

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18K (18-karat) Yellow Gold Necklace with Opal and Diamond (carat mark not specified). Includes card.

US$900

IntervendueMIAMI, FL

Size 8 .15ct Oval Cut White Opal in 18K Gold Plated Ring: Size 8 0.15ct Oval Cut White Opal in 18K Gold Plated Ring. Please view photos for further details.

3 days Left

Size 8 .15ct Oval Cut White Opal in 18K Gold Plated Ring

Est.

US$130

-

US$200

US$80

Weatherham Estate TreasuresCobourg, ON

Beautiful Natural 3.40Ct Black Opal Ring With Natural Blue Sapphire and 18k Gold: Title: Beautiful Natural 3.40Ct Black Opal Ring With Natural Blue Sapphire and 18k Gold Description: Beautiful Natural 3.40Ct Black Opal Ring With Natural Blue Sapphire and 18k Gold Description

Beautiful Natural 3.40Ct Black Opal Ring With Natural Blue Sapphire and 18k Gold

Est. —

£350

William GeorgeDunstable

18K Yellow Gold Setting with 24.05ct Opal Ladies Pendant: Retail: $3,920.00 ****** 18K Yellow Gold Setting with 24.05ct Opal Ladies Pendant ****** Metal: 18K Yellow Gold / Total Item Weight: 13.51 Grams / Country Made: United States / / Main Stone: Opal / Co

6 days Left

18K Yellow Gold Setting with 24.05ct Opal Ladies Pendant

Est.

US$3,669

-

US$4,302

US$50

Riverside GalleriesArcadia, CA

Australian Opal Diamond Paraiba Tourmaline Peacock Pendant in 18k Yellow Gold: Australian Opal Diamond Paraiba Tourmaline Peacock Pendant in 18k Yellow Gold This pendant features a dual peacock design crafted in solid 18k yellow gold. At its center is a natural Australian opal i

4 mins Left

Australian Opal Diamond Paraiba Tourmaline Peacock Pendant in 18k Yellow Gold

Est.

US$6,630

-

US$8,619

US$100

BidhausNew York, NY

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