Opal and Diamond Brooch

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

Antique Black Australian Opal on Matrix Diamond Brooch of 18K Gold Dimensions: 15.86 x15.35 x12.00 mm* Weight: 22.80 grams* * (estimate/approximately)

1970's Victorian Revival Australian Opal Diamond Brooch. Featuring an open frame floral motif centrally set with a oval cabochon cut "jelly" opal exhibiting a harlequin blue, green and red play of col

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

ONLY MAGNIFICENT JEWELS Gorgeous 3D real-life Dolphins pin Diamonds: .20ct. Round, H-color Vs-2 & Si-1 clarity Natural Opals Gorgeous threads of blues, reds and greens. measurement of pin: 1.1 X .73 I

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

Ladies 18k Yellow Gold and Opal Ring, and an Opal, Diamond and 10k Yellow Gold Brooch. 7.7 g.t.w. Brooch: L: 1.25 in.

Marked 14k.

14K Opal & Diamond Brooch, 16 Opals and 4 Diamonds, 7.93dwt 2 1/2"x 1 1/4"

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

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.

1970's Victorian Style Australian Opal Diamond Brooch/Pendant 2.00Cts

OPAL AND DIAMOND BROOCH, CIRCA 1890 The opal cabochon set within an open surround of old brilliant and single-cut diamonds, suspending an opal drop, diamonds approx. 070ct total, length 5.0cm

AN ANTIQUE OPAL AND DIAMOND BROOCH in yellow gold and silver, set with a central cabochon opal within a scrolling openwork mount set with old cut diamonds, the diamonds all totalling 5.3-5.5 carats, n

AN EARLY 20TH CENTURY OPAL AND DIAMOND BROOCH / PENDANT a cluster of heart-cut opals within an openwork frame of further opals and eight-cut diamonds. Estimated total diamond weight 0.40ct, 4cm by 2.5

DESCRIPTION: A Platinum convertible Brooch/pendant centered by a Large White Opal weighing approx. 20.6cts, encompassed by a series of Round cut Diamonds the top tier diamonds weighing approx. 0.25cts

Rosé gold 750, 18 g., Decorative brooch set with 1 carved opal of ca. 9.92 ct also 23 brilliants totalling 0.13 ct, F-G/SI and 1 brilliant of 0.17 ct, F-G/SI one part green enamelled. L ca. 85 mm.

ART DECO, BLACK OPAL AND DIAMOND BROOCH Containing one oval cabochon black opal measuring approximately 19.85 x 17.10 x 5.85 mm and 18 old mine cut diamonds weighing approximately 0.80 carat total. Mo

ANTIQUE BELLE EPOQUE OPAL AND DIAMOND BROOCH, Set with a large marquise shaped opal of approx. 28 x 9.7 mm. Surrounded with bright and lively diamonds. L. 4 cm. 10.1 grams.

AN ANTIQUE OPAL AND DIAMOND BROOCH, 19TH CENTURY in high carat yellow gold, designed as a crescent moon jewelled with graduated cabochon opals accented by old and rose cut diamonds, set to a plain bar

AN OPAL AND DIAMOND BROOCH in yellow gold, set with a cabochon opal of approximately 13.61 carats, in a border of old cut diamonds totalling approximately 1.40 carats, unmarked, 2.5cm, 7.3g.

AN ANTIQUE OPAL AND DIAMOND BROOCH in yellow gold and silver, formed of a trio of flower motifs, each set at the centre with a round cabochon opal, accented in the petals by rose cut diamonds, unmarke

Antique Victorian Opal, diamond, enamel, and gold brooch Set with cabochon opals and rose-cut diamonds, in a swirling surround of black enamel; 1880s Yellow gold 2.75 x 1.25 in; Gross weight 12.0 dwts

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