An 18ct gold opal and diamond novelty brooch, and an

An 18ct gold opal and diamond novelty brooch, and an 18ct gold gem-set cluster ring. The brooch designed as a pair of sunglasses with oval opal cabochon lenses and brilliant-cut diamond bridge, the ri

An 18ct gold diamond, sapphire and ruby novelty brooch. Designed as a pave-set diamond duck, with ruby eye, swimming on oval sapphire cabochon and scrolling bar waves. Estimated total diamond weight 0

AN 18CT GOLD, DIAMOND AND OPAL CRESCENT BROOCH.

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

This wonderful and romantic Victorian-era brooch shimmers with 12 colorful heart shaped opals and 44 sparkling old mine-cut diamonds, all of which are set in 14K gold. This distinctive and dreamy anti

Large oval 14K yellow gold brooch with hidden bail on back to convert to a pendant, set with large white opal cabochon and the foliate frame set with brilliant cut white diamonds, height 2", width 1.7

METAL: 14k Gold. MEASUREMENTS: Brooch is 35mm in diameter. GEMSTONES: Opal (multiple stones are chipped). Diamonds approx. 0.60ctw. MARKED: 14k. WEIGHT: 11.4 grams.Gemstones have not been graded for c

About 1 1/2" wide, WITH 12 fabulous opals and small brilliant diamond center stone, total weight 9 dwt 14 grams

An 18ct gold diamond brooch. Of bi-colour design, with intertwined undulating bars and brilliant-cut diamond highlights. AF. Estimated total diamond weight 0.25ct. Hallmarks for London, 2013. Length 4

Ladies fine 10k yellow gold, opal, and diamond brooch, weighing 25.7 grams. Unmarked but tested for 10k gold. Measures 51mm across. Condition: good, see images.

Continental, probably French, 18ct yellow gold brooch in the form of a cat with a rose cut diamond inlaid collar and eyes. Stamped, "18C" verso with unidentified partial pictorial hallmarks

Feature oval doublets and stamped "brooks". Ring is enhanced by (2) round diamonds, approx..22ctw. Pin: 2.5" x 1.25" with locking c-clasp flashes red, blue, green and yellow. Ring size 9.25 flashes bl

Vintage Brutalist 14k yellow and white gold, diamond and opal pin. Apparently unmarked, tested for fineness. Approx. h.2.25", w. 1.125", total weight 12.6g. Ahlers & Ogletree, Inc. reserves the right

Silver & Gold Weight 6.4g Diamond Approx. 0.75ct Bug Brooch Measurements 1.2”x1.5”

An Edwardian 18ct gold opal and diamond ring. The oval-shape opal line, with old-cut diamond spacers and scrolling gallery. Estimated total diamond weight 0.15ct. Hallmarks for London, 1903. Ring size

JEWELRY: Tested 14K yellow gold opal and diamond brooch with pendant option, measuring 1.5 x 1.25 inches in diameter, centering the brooch is an oval cabochon white opal measuring 23 x 13 mm., approxi

cluster brooch set with one oval cabochon cut White Opal, approximately 3.59 carats, enhanced with two pear shape cabochon cut White Opals, approximate total weight 1.09 carats, accented with 13 full

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

Silver & Gold Weight 6.3gr  Diamond Approx. 0.75ct Bug Brooch Measurements 1.2”x1.2”

Metal : 14k Gold Designer : Not Signed Gemstone : Diamonds approx. 0.60ctw, Opal (multiple small chips on stones) Measurements : Brooch is 35mm in diameter Marked: : 14k Weight:

An 18ct gold opal and diamond necklace.Estimated diamond weight 0.15ct, H-I colour, SI clarity. Hallmarks for Birmingham. Length 42.5cms. 6gms.

An Edwardian 18ct gold opal and diamond seven-stone ring. The graduated oval opal cabochon line, with single-cut diamond line spacers. Estimated total diamond weight 0.20ct. Hallmarks for Birmingham,

Silver & Gold Weight 6.4g Diamond Approx. 0.75ct Bug Brooch Measurements 1.2”x1.5”

Silver & Gold Weight 6.4g Diamond Approx. 0.75ct Bug Brooch Measurements 1.2”x1.5”