Antique Onyx Brooch

A very fine Art Deco onyx and diamond brooch, designed as a pavé set diamond bow, bordered by calibré cut onyx, mounted in platinum.

A circular brooch in gold, onyx and pearls, with geometrical detail in platinum and diamonds and central pearl.

The back glass is no longer present, however the brooch is in otherwise very good condition.

A very fine early Art Deco onyx and diamond bow brooch by Cartier, the horizontally aligned ribbon bow set with a central row of square cut onyx between courses of circular cut diamo...

Art Deco Tiffany & Co. Carved Coral, Onyx and Diamond Brooch American Circa 1920

Antique jewelry object group: brooch Condition: very good condition Do you wish for a 360° view of this unique jewel?

Micro Mosaic Past Art This very fine example of Italian Micro mosaic brooch is from the Edwardian period 1910 ca Beautifully made with a large solid 18 KT gold rectangular frame wi...

An Fine quality original art deco Bow Brooch circa 1920s signed Cartier Paris. This superb brooch is set with 42 old European cut diamonds and 41 black onyx stones.

Antique Handmade 14ct Gold Onyx and seed pearl brooch. This lovely Antique Onyx and seed pearl brooch in 14ct yellow gold is in very good condition.

The naturalistic looking parrot pin was crafted in the 1920s in 18 karat white gold and yellow gold in the back. The diamonds of high colour and clarity grade have about 1.5 carat. T...

A unique early Art Deco onyx, black enamel and diamond circle brooch, designed as an onyx circle, flanked by two diamond stylized leaf shaped motifs, decorated with black enamel and ...

Presenting this exquisite, antique natural Onyx and Pearl mourning brooch. From the Georgian to the Victorian eras, mourning jewellery was a treasured way to remember the passing of ...

This brooch by Cartier reflects these changes in design and is a stunning characterization of a potted topiary set throughout with diamonds and accented by black onyx.

Precious stones: Four fancy cut onyx Birthstones: Diamond is the birthstone (or month stone) for April and onyx for July.

Signed Dreicer piece featuring 0.55 carats of Round-Cut diamonds and black onyx, a brilliant combination of shimmering white and a matte black. Metal: Platinum Measurements: 55mm x...

Platinum Art Deco brooch featuring one of the most recognizable European motifs -- the windmill -- from its role in Dutch nationhood to significance in Don Quixote.

On offer is this gorgeous 9CT SOLID GOLD PUFFY ONYX MOURNING BROOCH DETAILS Material: 9ct (375/000) Solid Yellow Gold Style: Art Nouveau swirl / twist brooch with Onyx centre panel.

Art Deco jade diamond onyx and lapis mounted bar brooch with rose cut diamonds and millegrain finish.

CARTIER Art-Deco pin/brooch made with 14 natural pearls, 16 roses diamonds (old cut), 4 onyx squares (two with very little faults), yellow gold 14K and platinum mount.

On offer is this gorgeous 9CT HEAVY ROSE GOLD ONYX CELTIC MOURNING BROOCH DETAILS Material: 9ct (375/000) Solid Yellow Rose Gold (typical colour of the era) Style: Victorian classi...

The tablet shaped onyx is in the center of the brooch and is framed with 18k yellow gold.

A large hand carved cameo pin from the Victorian (ca1880) era! Set in vibrant 14kt rosy yellow gold, the beautiful face of a young woman graces the center of this intricately carved ...

Crafted in platinum, this brooch features a harmonious combination of old-cut diamonds, jade, onyx, and coral, materials that were highly favored during the era for their contrasting...

Art Deco Platinum, Onyx and Diamond Jabot Brooch by Cartier, Paris • Signed Cartier, numbered 0959, with French assay marks on both terminals • 46 old-European-cut diamonds approxima...

18k white gold, diamond, onyx. Circa : 1925 Dimensions : W95mm X D6mm X H17mm

The timepiece swings and sways from a fob chain composed of gently graduated tonneau shape black onyx and small round diamonds surmounted by a matching jade, onyx, and diamond brooch.

A fabulous pin/pendant from the Art Deco (ca1920s) era! Crafted in platinum, this piece begins with a circular coral cabochon. Radiating out from the coral cabochon are two long, nar...

Beautiful Cartier Art Deco Diamond, Onyx and Platinum Jabot Pin in the form of an arrow. The ‘feathers’ are millegrain edged and set with 48 Old Rose Cut Diamonds, flanking a single...

A fine Georgian cameo brooch dating from the 1830s. The brooch itself is crafted as a stylized Halley's comet, the tail set with an oval onyx came depicting an urn.

Mounted with 7 Carved Gem Flowers, 5 with Diamond centres and bordered with carved Nephrite leaves, all contained in a White Gold and Platinum topped Basket set with Rose Diamonds an...

Cartier, An Art Deco Platinum, Diamond and Black Onyx Arrow Jabot. The arrow is set with rectangular-cut and fancy shaped black onyx and rose-cut diamonds and measures approximately ...

Brooch in black onyx and antique gold, a micro mosaic representing rural landscape.

Precious stones: Coral and Onyx Birthstones: Onyx is the birthstone (or month stone) for July.

Time little antique stickpin made in gold has onyx and tiny diamond on it. It weighs 0.96 grams.

The 14-carat gold frame securely encloses the fine mosaic, the original long pin on the back closes securely with a C-hook. 585/ 14 kt yellow gold finest micro-mosaic made of ony...

Antique jewelry object group: bar brooch Condition: excellent condition Do you wish for a 360° view of this unique jewel?

Attractive lady's tailored designed Art Deco Circa 1920 platinum diamond pearl and black onyx bar pin set with 18 small single cut diamonds, 3 pearls into a black onyx rectangular sh...

Of geometric design set with single-cut diamonds, french-cut emeralds and carved onyx.

Pave set with Diamonds and calibre cut Black Onyx in an all Platinum mount with a Platinum security chain. The design represents a Horseshoe Nail, a very lucky symbol in France and o...

Antique 18 century Georgian 18ct gold Dutch faith hope charity tie/stick pin

Past Fashion Magnificent large scale Edwardian brooch or necklace surprising in craftsmanship, art expression of the early 1900 The large oval brooch depicting a bunch of roses so a...

An absolutely spectacular aquamarine, diamond, and onyx brooch in luxuiorus platinum. Set with eighty four diamonds weighing a combined 4.20 carats approximately this brooch takes f...

Fabulous 1930s Art Deco Platinum, Diamond and Black onyx Brooch, 3 1/2 carat Total Weight old European Cut Diamonds.

Platinum brooch with natural Pearls and Onyx. European 1925.

Italian platinum brooch with green jasper, small onyxes, and diamonds for a total of 1.20 carats / Made in Italy 1920-1930s Length 4.2 cm, width 2.3 cm

This magnificent Art Deco pin boasts a total of certified 6.78 carats of Old European cut diamonds, H colour and SI-2 clarify, with calibre cut onyx accents in the original fitted bo...

This double prong brooch is a lovely flower and pot motif possessing fine natural jade diamonds and a large Holland cut rose cut diamond.

Egyptian Revival diamond and gem-set brooch in platinum. This geometric plaque brooch of an octagonal design is modelled as two hieroglyphic swallow birds decorated with calibre-cut ...

This gorgeous little brooch is an original piece dating back to the 1920s.

Victorian demi-parure including a faceted onyx brooch/pendant and screw-back earrings with applied bezel-set seed pearls in gold scrollwork set in 10K gold.

This stunning antique black onyx brooch has been crafted in 14k yellow gold with a platinum setting.

The Tiffany name is synonymous with luxury, and this onyx and diamond “bow” brooch perfectly demonstrates why this firm is so beloved.

Victorian realistic pansy brooch of hand carved black onyx with diamond center stone.

An Art Deco bar brooch of carved green onyx set with alternating pearl and diamond, in platinum and 14k.

Antique Onyx and diamond brooch adorned by rose cut diamonds and pearls, all engraved with the classic motifs of that era.

Onyx Victorian Gold Brooch. Great Britain 1880.

Impressive Whirl Diamond and White Gold Brooch. Dimensions: approx. 5.40 centimeters x 4.60 centimeters. Thickness: 1.20 centimeters. Total weight: 34.14 grams. This striking bro...

A beautiful Diamond Ribbon Bow Brooch with ca. 7 carats of diamonds (D-F/IF-VVS).

Tiffany Arts and Crafts Era Black Opal and Plique a Jour Brooch circa 1910's by Louis Comfort Tiffany with Julia Munson in 18k gold. Large peacock Black Opal round measuring .75" x 5...

1940's French Diamond and Ruby Necklace and Earrings Set The necklace has approximately 75ct of rubies and 40-42ct of diamonds all set in Platinum, and the clasps are white gold. The...

Antique French Floral Design Platinum Diamond Tiara with Detachable Brooch This magnificent French tiara, crafted in luxurious platinum, is a masterpiece of elegance and refinement....

Cartier antique diamond bow brooch. Set to centre with a cushion shape old mine diamond in an open back millegrain setting with a weight of 0.15 carats, further adorned by eighty six...

Diamond Floral Brooch in Platinum This Brooch takes the form of a stylized flower, gracefully rendered in platinum and adorned with a dazzling array of round brilliant, baguette, an...

A dazzling example of Art Deco elegance, this exquisite wristwatch by Oscar Heyman for Tiffany & Co. is a masterpiece of design and craftsmanship. The cream dial is adorned with stri...

Van Cleef and Arpels Ruby and Diamond Flower Brooch A floral brooch featuring round-cut diamonds and rubies, and a stem set with baguette-cut diamonds. Approximate Length: 3.13 Inc...

Important Arts and Crafts Galleon Necklace by an extraordinary, anonymous period jeweler circa 1910, likely made in the Boston area of sterling silver and gold. Incredible detailing ...

Art Deco double clip brooch set with square, marquise, straight baguette and round diamonds weighing approximately 8 carats.

Gorgeous Art Deco lady's platinum diamond wristwatch by J.E. Caldwell. The original dial with black Roman numerals is signed "J.E. Caldwell " and has a border of round old cut diamon...