An opal and diamond brooch/pendant, designed as a heart

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

American, mid-20th century. Stamped "14K" yellow gold pendant/brooch, also stamped "SB" (Berman & Co., Sydney). Designed with open scroll work and center fleur de lis motif, set with eight round opals

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

Beautiful 10kt yellow gold 1CT opal diamond heart pendant, 3/4 x 3/8 inches, 0.9 grams, 0.6 dwt.

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

Thirteen 2mm diamonds are each securely prong set, surrounding a heart-shaped opal that measures approx. 12mm x 10mm. No scratches or flaws, cracks, or chips within the opal, and it is not a doublet.

Gold and Diamond Brooch / Pendantdesigned in a freeform bombé style with nugget detailing and overlaid with a high polish gold X motif flush set with full cut round diamond accents weighing approxi

METAL: 14k Gold. GEMSTONES: Old mine cut diamonds approx. 1.15ctw. Heart shaped opal. MEASUREMENTS: Ring size 7 3/4, ring top is 24mm wide. TESTED: 14k. WEIGHT: 9.4 grams.Gemstones have not been grade

An opal and diamond necklace. Designed as a series of oval opal cabochons, with similarly-cut opal and brilliant-cut diamond triple spacers. Estimated total diamond weight 2.75cts. Length 44cms. Weigh

Measues 5/8 by 5/8 inches. 2.3dwt

A BROWN AND WHITE DIAMOND BUTTERFLY BROOCH / PENDANT designed as a butterfly, the wings set with round cut brown and white diamonds, no assay marks, 11.2cm, 53.1g.

METAL: 18k Gold. MEASUREMENTS: Brooch is 36mm x 36mm. GEMSTONES: Opals, Diamonds approx. 2.20ctw (one stone is missing). MARKED: Casbah, 18k. WEIGHT: 10.4 grams.Gemstones have not been graded for colo

14K Yellow Gold Diamond Opal Brooch Pendant. Size 2" weight 17.8 grams

This is a vintage platinum heart shaped pendant/brooch studded with 48 Old European cut diamonds. SI-I clarity and GH-HI color. 1 3/8 x 1 3/8". It weighs a total of 8.1g. Draft title TW estimate seems

14k gold opal and diamond ring, designed and handmade by Tom Castor of Lambertville, New Jersey, asymmetrical design with oval opal measuring 19mm x 8mm, surrounded by thirteen diamonds measuring appr

Gold, Opal, and Diamond Pendantdesigned in a freeform leaf motif centering on a bezel set cabochon opal and with full cut round diamond melee weighing approximately .08 total carat (G-H color, SI clar

Heart shaped opal and diamond ring (possibly Australian opal); white gold ring mounting with expansion opening shank, finger size: 5 1/2; Unstamped: Test 14K; Opal 17x16x7.6mm (9.33ct) multi-color red

A pair of opal and diamond earrings. Each designed as a circular opal cabochon, with old-cut diamond cluster surround and grooved border. Estimated total diamond weight 1.20cts. Length 1.6cms. Weight

Excellent with no chipped or cracked stones, having three 1mm diamonds set with eight 5mm x 3mm fire opals. The approx. weight: 2.8 Grams. Not including the hinged necklace bail, the approx. size: 1"

Size 6 with 18 small round brilliant diamonds, TOTAL WEIGHT 3.5 GRAMS

METAL: 14k gold. GEMSTONES: diamond, seed pearls. MEASUREMENTS: pendant/brooch is 23mm x21mm. MARKED: 14K. WEIGHT: 4.9 grams. Gemstones have not been graded for color and clarity ,and tested for clari

A pair of yellow diamond and diamond earringseach designed as a heart-cut yellow diamond, weighing approximately 1.00 carats, framed by round brilliant-cut diamonds, in eighteen karat white gold; esti

White Gold, Yellow Sapphire, and Diamond Earringsdesigned in a heart motif and pavè set with round cut yellow sapphires weighing approximately 4.10 total carats and full cut round diamond melee wei