Onyx Brooches

This gorgeous platinum pin from the Art Deco era, is centered with a sparkling old mine cut diamond weighing approximately 0.80ct. and smaller old mine cut diamonds weighing approxim...

A fine and impressive antique 6.69 carat citrine, 0.28 diamond and onyx, 14 karat yellow gold brooch; part of our antique jewelry/estate jewelry collections. This fine and impressive antique brooch has been crafted in 14k yellow gold with a silver setting. The bar brooch is ornamented to either end with an impressive bezel set round faceted cut citrine, totalling 6.69Ct. The two impressive citrines are connected via two parallel bars, embellished with a total of thirty Dutch cut pavé set diamonds. The antique brooch is further accented by three impressive collet set square cut onyxes, set at regular intervals between the two bars. This fine 1920s brooch secures to the reverse with a push fit catch. The reverse of the pin is hallmarked with the 14k gold fineness hallmark 585, the maker's mark (FK) and mark (A). This impressive antique citrine brooch...

Designer: Soho Material: 18K white gold Diamond: 50 round brilliant cut= 1.20cttw Color: G Clarity: VS2 Dimensions: pin measures 42mm in length Weight: 9.76 grams

Signed "Putti" platinum Black Onyx, carved with figures of a man and a woman, Brooch / Pendant. Circled with round brilliant cut diamonds with a total diamond weight of 1.50 carats....

The brooch is set with baguette, circular and fancy-cut diamonds depicting a flowering plant and pot on a stand. It is further set with cabochon turquoise, emerald, ruby and step-cut...

14k gold onyx clip. Measuring 45mm in diameter x 53mm long. Marked 14k. Weight - 24.2 grams.

Hand Engraved Pave Savannah Pin Natural Diamonds - 0.63cts F Color, VS Clarity Diamonds and Black Onyx Metal: 18k Yellow Gold/Platinum Double Jewelry Pin...

A BUNDA 'Couture' Onyx, Carnelian and diamond brooch made in 18 carat yellow gold, featuring specially cut Onyx and Carnelian stones, surrounded with threadset round brilliant cut di...