Results for “opal 18k”

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OPAL DIAMOND GOLD NECKLACE ENAMEL 18K YELLOW BUTTON LINK VINTAGE UNIQUE: OPAL DIAMOND GOLD NECKLACE ENAMEL 18K YELLOW BUTTON LINK VINTAGE UNIQUE This is a beautiful vintage long necklace; it is crafted from 18k yellow gold featuring alternating long rectangle shape with te

Oct 13, 2026

OPAL DIAMOND GOLD NECKLACE ENAMEL 18K YELLOW BUTTON LINK VINTAGE UNIQUE

Est.

US$26,144

-

US$29,220

US$21,500

Valley Village, CA

Modern Jewelry

4.5

(220)

Van Cleef & Arpels Alhambra 18k White Gold Pink Opal Diamond Ring: About This Piece:

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Van Cleef & Arpels Alhambra 18k White Gold Pink Opal Diamond Ring

US$4,815

Feasterville, PA

Fortrove - Fine Jewelry

4.3

(11)

Beautiful Natural Opal 3.86 CT Ring With Natural Diamond and 18k Gold: Title: Beautiful Natural Opal 3.86 CT Ring With Natural Diamond and 18k Gold Description: Beautiful Natural Fire Opal Ring With Diamonds and 18k Gold. 3.86 CTS. Natural Fire Opal

Beautiful Natural Opal 3.86 CT Ring With Natural Diamond and 18k Gold

Est. —

£550

Kent

William George

4.2

(15)

NECKLACE MEXICAN OPAL & OLD MINE CUT DIAMOND 18K GOLD PENDANT & CHAIN: NECKLACE MEXICAN OPAL & OLD MINE CUT DIAMOND 18K GOLD PENDANT & CHAIN This Mexican Opal and Old Mine Cut Diamond Necklace features a pear-shaped pendant set in 18k yellow gold. The vintage-inspired de

Oct 8, 2026

NECKLACE MEXICAN OPAL & OLD MINE CUT DIAMOND 18K GOLD PENDANT & CHAIN

Est.

US$8,137

-

US$9,094

US$6,700

Valley Village, CA

Modern Jewelry

4.5

(220)

Beautiful Natural Black Opal Earrings With Natural Black Diamond & 18k Gold: Title: Beautiful Natural Black Opal Earrings With Natural Black Diamond & 18k Gold Description: Beautiful 2.61 CT Natural Black Opal Ring With Natural Black Diamond and 18k Gold. 2.61

Beautiful Natural Black Opal Earrings With Natural Black Diamond & 18k Gold

Est. —

£425

Kent

William George

4.2

(15)

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

Oct 13, 2026

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

Est.

US$10,113

-

US$11,303

US$8,300

Valley Village, CA

Modern Jewelry

4.5

(220)

Beautiful Natural Black Opal Ring With Natural Diamond & 18k Gold: Title: Beautiful Natural Black Opal Ring With Natural Diamond & 18k Gold Description: Beautiful 1.14 CT Natural Black Opal Ring With Natural Black Diamond and 18k Gold. 1.14 CTS Natura

Beautiful Natural Black Opal Ring With Natural Diamond & 18k Gold

Est. —

£425

Kent

William George

4.2

(15)

15.5-11.7MM OPAL 0.75 CARAT OLD EUROPEAN DIAMOND 18K GOLD COCKTAIL RING: 15.5-11.7MM OPAL 0.75 CARAT OLD EUROPEAN DIAMOND 18K GOLD COCKTAIL RING PRODUCT DESCRIPTION Title: 1.00 Carat Oval Shape 0.75 Carat Old European Cut G VS Diamond 18 Karat Two Tone Gold Cocktail Ring S

Oct 18, 2026

15.5-11.7MM OPAL 0.75 CARAT OLD EUROPEAN DIAMOND 18K GOLD COCKTAIL RING

Est.

US$6,700

-

US$7,488

US$5,500

Valley Village, CA

Modern Jewelry

4.5

(220)

18K Yellow Gold 8.0ct Egyptian Opal Ring: A luminous 8.0 carat Egyptian Opal adds warmth, color, and style to the center of this exquisite luxury ring. Crafted from 18K Yellow Gold, intricate metalwork makes it a captivating piece that will c

Sep 27, 2026

18K Yellow Gold 8.0ct Egyptian Opal Ring

Est.

US$2,400

-

US$3,000

US$1,900

Broomall, PA

Eastern European Art Gallery Inc

4.3

(3)

VICTORIAN 18.00CT OLD MINE CUT DIAMOND & OPAL 18K GOLD FANCY BRACELET: VICTORIAN 18.00CT OLD MINE CUT DIAMOND & OPAL 18K GOLD FANCY BRACELET Victorian 18.00ct Old Mine Cut Diamond & Opal 18k Gold Fancy Bracelet Description This lovely vintage bracelet is crafted from 18k

Oct 14, 2026

VICTORIAN 18.00CT OLD MINE CUT DIAMOND & OPAL 18K GOLD FANCY BRACELET

Est.

US$14,581

-

US$16,296

US$12,000

Valley Village, CA

Modern Jewelry

4.5

(220)

Beautiful Natural Opal Ring With Natural Blue Sapphire and 18k Gold: Title: Beautiful Natural Opal Ring With Natural Blue Sapphire and 18k Gold Description: Beautiful Natural Opal Ring With Natural Blue Sapphire and 18k Gold. Beautiful Natural Fire Opal Ring Wit

Beautiful Natural Opal Ring With Natural Blue Sapphire and 18k Gold

Est. —

£375

Kent

William George

4.2

(15)

VINTAGE OPAL DIAMOND PENDANT 10K GOLD SILVER AND 18K GOLD CHAIN: VINTAGE OPAL DIAMOND PENDANT 10K GOLD SILVER AND 18K GOLD CHAIN Product details: DESIGNER: Unknown CIRCA: Early 20th Century MATERIALS: 18k Gold Chain, 10k Gold Silver Pendant GEMSTONE: Opal, Diamond

Oct 12, 2026

VINTAGE OPAL DIAMOND PENDANT 10K GOLD SILVER AND 18K GOLD CHAIN

Est.

US$4,080

-

US$4,560

US$3,350

Valley Village, CA

Modern Jewelry

4.5

(220)

Vintage 18k Yellow Gold Horse Brooch Pendant with Fire Opal and Diamonds: Vintage 18k Yellow Gold Horse Brooch Pendant with Fire Opal and Diamonds Vintage horse motif brooch with a convertible pendant design, crafted in solid 18k yellow gold. This original estate piece feat

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Vintage 18k Yellow Gold Horse Brooch Pendant with Fire Opal and Diamonds

US$3,260

New York, NY

Diamond Depot

4.3

(16)

Tiffany & Co. Vintage 18k Gold Opal Mother of Pearl Pansy Clip-On Earrings: Tiffany & Co. Vintage 18k Gold Opal Mother of Pearl Pansy Clip-On Earrings These exquisite vintage clip-on earrings from Tiffany & Co. feature a beautiful inlaid design showcasing natural opals and mo

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Tiffany & Co. Vintage 18k Gold Opal Mother of Pearl Pansy Clip-On Earrings

US$12,130

New York, NY

Diamond Depot

4.3

(16)

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. —

£450

Kent

William George

4.2

(15)

18K (18-karat white gold) necklace with 2.39ct opal and 0.10ct diamonds. Includes a certificate of: --- Catalog ---Category: SizeWeight: 6.6g / 0.23oz.Pendant Size: 16mm x 11mm / 0.62'' x 0.43''Neck Circumference: 50 cm / 19.68''Category: DesignColor: White goldMetal: White GoldStone: Diamond, OpalG

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18K (18-karat white gold) necklace with 2.39ct opal and 0.10ct diamonds. Includes a certificate of

US$1,800

MIAMI, FL

Intervendue

4.5

(79)

VINTAGE 18K YELLOW GOLD & AUSTRALIAN FIRE OPAL & DIAMOND PENDANT: VINTAGE 18K YELLOW GOLD & AUSTRALIAN FIRE OPAL & DIAMOND PENDANT Vintage 18k Yellow Gold & Australian Fire Opal & Diamond Pendant Size: Over 1 1/4" Tall By 5/8" Wide Weight Is 5.4 Grams Metal: 18k Yel

Oct 11, 2026

VINTAGE 18K YELLOW GOLD & AUSTRALIAN FIRE OPAL & DIAMOND PENDANT

Est.

US$2,032

-

US$2,271

US$1,650

Valley Village, CA

Modern Jewelry

4.5

(220)

DESIGNER SATIN FINISH 18K YELLOW GOLD NATURAL AUSTRALIAN FIRE OPAL MODERN RING: DESIGNER SATIN FINISH 18K YELLOW GOLD NATURAL AUSTRALIAN FIRE OPAL MODERN RING Designer Satin Finish 18k Yellow Gold Natural Australian Fire Opal Modern Ring Ring Size: 5.5 - Can be Resized Weight is

Oct 11, 2026

DESIGNER SATIN FINISH 18K YELLOW GOLD NATURAL AUSTRALIAN FIRE OPAL MODERN RING

Est.

US$5,092

-

US$5,691

US$4,150

Valley Village, CA

Modern Jewelry

4.5

(220)

Chaumet Attrape Moi Bee Heart Opal Diamond 18k Rose Gold Necklace Pendant Insect: Chaumet Attrape Moi Bee Heart Opal Diamond 18k Rose Gold Necklace Pendant Insect Item Specifics: Pendant Shape: Bee Closure: Spring Ring Occasion: Anniversary Birthday Christening Christmas Confirmati

3 days Left

Chaumet Attrape Moi Bee Heart Opal Diamond 18k Rose Gold Necklace Pendant Insect

Est.

US$3,275

-

US$3,950

US$870

Raleigh, NC

SEUYCO

4.6

(93)

18k Yellow Gold Opal Diamond Textured Bead Bypass Ring: 18k Yellow Gold Opal Diamond Textured Bead Bypass Ring This exquisite bypass statement ring features a stunning design crafted in solid 18k yellow gold. The ring showcases two natural genuine opals, e

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18k Yellow Gold Opal Diamond Textured Bead Bypass Ring

US$4,740

New York, NY

Diamond Depot

4.3

(16)

CASBAH 18K YELLOW GOLD MARQUISE CUT AUSTRALIAN FIRE OPAL & DIAMOND HALO RING: CASBAH 18K YELLOW GOLD MARQUISE CUT AUSTRALIAN FIRE OPAL & DIAMOND HALO RING CASBAH 18k Yellow Gold Marquise Cut Australian Fire Opal & Diamond Halo Ring Casbah 18k gold heavy 2.0ct VS1 clarity and F

Oct 11, 2026

CASBAH 18K YELLOW GOLD MARQUISE CUT AUSTRALIAN FIRE OPAL & DIAMOND HALO RING

Est.

US$3,392

-

US$3,791

US$2,750

Valley Village, CA

Modern Jewelry

4.5

(220)

ESTATE 6.20CT OPAL & DIAMOND 18K YELLOW GOLD 2.05" WIDE FANCY BRACELET: ESTATE 6.20CT OPAL & DIAMOND 18K YELLOW GOLD 2.05" WIDE FANCY BRACELET Estate 6.20ct Opal & Diamond 18k Yellow Gold 2.05" Wide Fancy Bracelet Description This large gorgeous Estate bracelet is crafted

Oct 14, 2026

ESTATE 6.20CT OPAL & DIAMOND 18K YELLOW GOLD 2.05" WIDE FANCY BRACELET

Est.

US$20,783

-

US$23,228

US$17,000

Valley Village, CA

Modern Jewelry

4.5

(220)

18k Yellow Gold Opal Diamond Textured Bead Bypass Ring: 18k Yellow Gold Opal Diamond Textured Bead Bypass Ring This exquisite bypass statement ring features a stunning design crafted in solid 18k yellow gold. The ring showcases two natural genuine opals, e

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18k Yellow Gold Opal Diamond Textured Bead Bypass Ring

US$4,740

New York, NY

Diamond Depot

4.3

(16)

DESIGNER 18K WHITE GOLD NATURAL AUSTRALIAN FIRE OPAL & BLUE SAPPHIRE HALO RING: DESIGNER 18K WHITE GOLD NATURAL AUSTRALIAN FIRE OPAL & BLUE SAPPHIRE HALO RING Designer 18k White Gold Natural Australian Fire Opal & Blue Sapphire Halo Ring Ring Size: 8.25 - Can Be Resized Metal: 18

Oct 11, 2026

DESIGNER 18K WHITE GOLD NATURAL AUSTRALIAN FIRE OPAL & BLUE SAPPHIRE HALO RING

Est.

US$2,882

-

US$3,221

US$2,350

Valley Village, CA

Modern Jewelry

4.5

(220)

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