18k Gold Opal Brooch

Designer: custom design Material: 18K Yellow Gold & Platinum Diamond: 13 Round Brilliant cut = 0.35cttw Color: G Clarity: VS1 Diamonds: 12 Oval cut = 1.64cttw Color: G Clarity: V...

Crafted in 18K white gold with milgrain detailing throughout. 18K Diamond, Multi Sapphire and Opal Brooch Condition: In good condition with some minor surface wear consistent with a...

An exceptional antique opal and diamond brooch crafted in platinum and 18K yellow gold, centered with a large rectangular opal weighing approximately 52.07 carats.

Made of exquisite 950 platinum and 18k yellow gold, this unique brooch-pendant is set with a stunning oval Australian opal that radiates a captivating play of colors.

Small brooch set on yellow gold with white opals, the perfect piece of jewellery for a minimalist. Small defects on one opal. Highlights - 18ct yellow gold - Cabochon cut White Opal...

A striking and opulent vintage brooch/pendant, finely crafted in 18K yellow gold and signed CASBAH.

Weight: 12.0 Grams Stone: Carved Mexican Fire Opal 14.56ct Stone: Diamond 19.02ctw Measurements: 44.7 x 21.5 x 14.22mm Metal: 18k Two-Tone Gold Item #: BR-1912-060226-17

A contemporary brooch-pendant showcasing an elegant design with a striking opal centerpiece.

An exceptional piece - Art nouveau Opal Brooch from original catalogue of french jeweller Edouard Aimé Arnould, circa 1910 brooch measurements - 0.39 x 0.39 x 2.95 in / 10 x 10 ...

This fine and impressive vintage opal brooch has been crafted in 18k yellow gold.

Australian opal yellow gold pendant brooch Opal measures approximately 13 x 19.5 mm, 18 karat yellow gold; marked 18k Size: width 1.5 inches, length 1.75 inches Total weight: 10.6 ...

Elegant and unusual gold brooch with a twisting in and out tubular design. The brooch has three opals and four garnets mounted on different levels. The brooch is 2 3/8 inches w ide...

Crafted in 18k gold and platinum, the brooch showcases intricate yellow gold and platinum gold work.

Opal & Diamond Brooch 1 center opal surrounded by 5 large old mine diamonds & 91 small round cut diamonds, suspending a pear shape cabochon opal set with round cut diamonds Cente...

Bochic “Candy Butterfly” Vintage Fire Opal, Ruby & Sapphire Vintage Brooch Set 18K Gold Natural Opals 11 carats Natural shapes Natural Ruby 6 carats Pear shape Origin Africa ...

A striking brooch featuring a large and impressive 32.41 carat Australian opal.

A captivating example of antique artistry, this exceptional 18K gold and platinum owl brooch is a celebration of color, character, and craftsmanship.

This exquisitely crafted crab brooch is rendered in luxurious 18K yellow gold, combining playful artistry with refined elegance.

A captivating brooch featuring a portrait opal, showcasing a mesmerizing multi-colored hue, set in 18k yellow gold.

In very good condition. Total weight 28.7 grams. Totally is opal about 30 ct. Totally is diamond 2.50 ct. The diamond is has G-H-I color and s1-s2-s3 clarity. Totally is Emerald and...

18K Yellow Gold Butterfly Very Large Brooch with Diamonds, Opals & Ruby Eyes A finely crafted butterfly brooch in 18K yellow gold, featuring opal-inlaid wings accented with rubies f...

Bochic “Orient” Vintage Opal & Blue Sapphire Turtle Brooch Set In 18K Gold & Silver From the “Orient” collection Natural Opals - 5.5 carats Natural shapes Natural Blue Sapphires ...

A spectacular and poetically designed contemporary high-jewelry statement brooch depicting a majestic Bird of Paradise. Masterfully handcrafted in solid 18k white gold, this heavy, l...

An exceptional piece - Art nouveau Opal Brooch from original catalogue of french jeweller Edouard Aimé Arnould, circa 1910 opal origin - Australia brooch measurements - 0.39 x 0.39 x...

An Art Deco opal, diamond, platinum, and yellow gold brooch, set with fourteen old cut diamonds, and one oval crystal opal cabochon, set in platinum, and backed in 18 karat yellow go...

Masterfully handcrafted in solid 18k white gold, this monumental and exceptionally heavy collector's piece weighs a staggering 57.00 grams, serving as an elite investment-grade examp...

A captivating celebration of nature’s artistry, this 18K yellow gold black opal and diamond brooch showcases the mesmerizing beauty of one of the world’s most sought-after gemstones.

Bochic “Orient” Vintage Retro Multi Ruby, Diamond & Opal Brooch Set In 18K Gold & Silver Can be worn as a brooch and a pendant Red color Natural Ruby From Africa 17 carat Multi ...

Bochic “Orient” Retro Multi Sapphires & Opal Brooch Set In 18K Gold & Silver Can be worn as a brooch and a pendant Blue color Natural Sapphires from Sri Lanka 27 carat M...

The design is further enhanced by the presence of sparkling white diamonds, which accentuate the piece's elegance. Crafted in 18k yellow gold, the brooch showcases a textured, organi...

An elegant late Victorian, early Edwardian crescent brooch crafted in 18 carat yellow gold, set with a graduated row of luminous natural opal cabochons interspersed with sparkling ol...

Bochic “Orient” Opal, Multi Sapphires & Ruby Brooch Set In 18K Gold & Silver Can be worn as a brooch and a pendant Natural Red Ruby - 4 carat Multi color Natural Sapphi...

A diamond bee brooch, in the form of a bumble bee in flight, the delicately flying wings, domed body and stretched legs encrusted with two opal on its body, round cut diamonds, with ...

Bochic “Orient” Retro Multi Sapphires & Opal Brooch Set In 18K Gold & Silver Can be worn as a brooch and a pendant Blue color Natural Sapphires from Sri Lanka 7 carat Mu...

Bochic “Orient” Vintage Sapphire Opal & Ruby Brooch Set In 18K Gold & Silver Natural Sapphire, Ruby, Opal and Garnet 19 carats Set in 18K Gold and Silver 950 This Brooch or Pendan...

Picture a majestic brooch, a symphony of iridescence and elegance, crowned by a mesmerizing 72.25 carat boulder opal at its heart! This opal, like a miniature landscape of a ship at ...

Gold and a prized jewel visualize a frog for this brooch. 18k yellow gold forms the textured body, with craftsmanship to the arms and feet.

Handcrafted 18K white gold brooch featuring a natural opal, total weight 8.72 g, designed in a clean and timeless style.

A lyrical Art Nouveau brooch crafted in 18k yellow gold, this circa early 1900s piece captures the movement and romance of natural forms.

Adding to that are multi-colored sapphires set around the piece which weigh a total of 1.18 carats. Made in 18k yellow gold, the piece can be worn as a brooch or add a chain to its b...

Art Deco Opal & Diamond Brooch A platinum and 18 karat white gold brooch set with a center black opal weighing approximately 7.75 carats framed by approximately 3.35 carats of round...

14k yellow gold brooch decorated with black enamel and set with pearl, opal, and rose diamonds totaling 1.60ct Detailed description the dimensions of the brooch are 5.7 cm high and...

A unique and original piece.  Brooch Information Style: Art Deco Metal: 18K White Gold Width: 47 mm.

The 1.06 carats of round cut diamonds are spread about the leaves in this 18K yellow gold brooch. With the two bails on the back of the setting this piece can double as a pendant.

Here we have an antique French Masterpiece! This VERY long bar pin features unheated sapphires and rubies with an opal center. The come together in an alternating pattern to create ...

Graceful and elegant Victorian brooch made of 18 karat gold highlighted with opals and tourmaline. Measurements are 2 3/8 inches in width and 1 1/2 inches from top to bottom. The bro...

A beautiful antique 18ct yellow gold brooch set with a glowing cushion-cut fire opal, framed by four natural seed pearls positioned at the cardinal points. Dating from the early 1900...

The piece is finished with hand carved and textured foliage giving the piece a rich free. Made in 18k white and yellow gold, it can be worn as a brooch or attach a chain to it to wea...

This fine and impressive vintage opal bar brooch has been crafted in 18 k yellow gold.

A gorgeous Ethiopian Opal, Pink Sapphires & Diamonds Brooch / Pendant set in 18K Rose Gold & natural Diamonds.

A modern gem set dragonfly brooch, with trembling wings, with opals in the thorax, wing tips and eyes, weighing 2.45 carats, with blue to green plique à jour enamel wings, set with e...

Castellani® commissioned to have this distinctive 42.06ct Natural Black Opal hand carved into an intaglio. The subject is “Venus Rising Out of the Sea”,the same scene that the famous...

The opal is framed by an alternating halo of vivid green pear-shaped emeralds and sparkling white marquise-cut diamonds, all set in rich 18K yellow gold.

Brooch in 18 Karat yellow gold. Charming round antique brooch set in the center with a round cabochon opal in a setting of antique-cut diamonds set on black enameled geometrical moti...

Introducing our stunning Mexican Opal Hexagonal Lapel Pin/Tie Tack, a refined accessory crafted to elevate any attire with a touch of elegance and vibrant color. This exquisite piece...

Antique Edwardian Australian Lightning Ridge Harlequin Precious Black Opal and White Opal Brooch / Pendant in 18 Karat Yellow Gold, early 1900s, English, cased, attributed to English...

Detailed Description: Embrace timeless elegance with this captivating vintage pin brooch. Crafted in lustrous 18K yellow gold, it features a stunning array of gems.