An opal bar brooch. The rough opal, with undulating

An opal bar brooch. The rough opal, with undulating ribbon sides. Length 6cms. Weight 7.1gms.

A mid 20th century diamond and opal bar brooch. The oval opal cabochon, with old-cut diamond sides, to the tapered bar. Estimated total diamond weight 0.20ct. Length 6.6cms. Weight 4.7gms.

14K yellow gold and opal bar brooch 6.90 DWT 1/2"H x 2 1/2"W

NO RESERVE - AN ANTIQUE ART NOUVEAU DIAMOND AND OPAL BAR BROOCH in 15ct yellow gold, set with an old cut diamond and an opal cabochon within two scrolling bars, stamped 15, 4.0cm, 3.9g.

OPAL BAR BROOCH, W. 4.7 cm. 3.4 grams.

An opal bar brooch. The oval opal cabochon, within a rope-twist surround, to the plain bar sides. Estimated dimensions of opal 9.2 by 8.2 by 2.7mms. Length 6cms. Weight 5.1gms.

set with central oval opal on bar, l 5.2cm

Brooches; a. One peridot & seed pearl bar brooch stamped 9kt. yellow gold, weighing 2.7 grams. b. One translucent (crazed) opal bar brooch in 14kt. yellow gold, weighing 2.7 grams. c. One oval citrine

An opal and diamond bar brooch. The cushion-shape opal cabochon, with old-cut diamond trefoil and bar sides. Estimated total diamond weight 0.75ct. Length 6.8cms. Weight 7.2gms. With case. Overall con

10k white and yellow gold pin brooch, set with a central round shaped cabochon opal, approximate total weight of opal 1.57ct, flanked by four old European cut diamonds, approximate total weight of dia

15ct Yellow gold opal set bar brooch, silver bangle, silver toothpick and other costume jewellery

Two early 20th century gold gem-set brooches. To include a circular opal cabochon and split pearl floral brooch, together with an oval opal cabochon bar brooch. Lengths 4.8 and 6.1cms. Weight 6.6gms.

Two bar brooches. To include a 9ct gold oval opal cabochon bar brooch, together with an early 20th century 9ct gold pink glass cameo scrolling bar brooch. One with hallmarks for Birmingham. Lengths 2.

An early 20th century 15ct gold opal and split pearl bar brooch. The circular opal cabochon, within an openwork surround and split pearl highlights. Length 5.6cms. Weight 3.3gms.

AN ANTIQUE OPAL AND DIAMOND BAR BROOCH in 18ct gold, set with a central oval cabochon opal between two old cut diamonds, with further rose cut diamonds to the bar, French import marks for 18ct gold, 3

NO RESERVE - AN ANTIQUE BLACK OPAL AND DIAMOND BAR BROOCH, CIRCA 1910, Made in yellow gold and platinum, Oval cabochon black opal, weighing approximately 1.61 carats, Single cut and rose cut diamonds,

Victorian Opal, 15k Yellow Gold Bar Brooch. Featuring one oval opal cabochon measuring approximately 11.45 x 10.45 mm, set in a 15k yellow gold bar brooch mounting with safety chain and metal pin stem

14K yellow gold brooch bar pin with opals, 6.1g

(Lot of 2) Amethyst, opal and 9K gold bar brooches comprised of (1) oval-cut amethyst, weighing approximately 15.00 cts., set in a 9k rose gold bar brooch, measuring approximately 64 x 19 mm, marked 9

A 9ct white gold bar brooch set with central oval opal cabochon. The opal approx. 3/4" long, the brooch 2" wide overall.

Gold, Opal, and Diamond Brooch, Jewelsmithin a geometric motif with an oval cabochon opal (10.94 x 19.18 mm) surmount bezel set above a hand-formed undulating gold element and with a bezel set diamond

13-14K tested yellow gold frame, et with small round green opals and small accent seed pearls, three suspended and prong set opals, bar pin closure on verso, not marked. Apprx 1.5 x 1 in., apprx 6.4 g

A selection of jewellery. To include an early 20th century diamond and seed pearl bar brooch, a 9ct gold diamond and opal triplet pendant with a 9ct gold chain, an early 20th century ruby, split and s

Three items of gem-set jewellery. To include an early 20th century 9ct gold purple paste bar brooch, an early 20th century gold opal stickpin, with a 9ct gold moonstone single-stone ring. Two with hal