AN ANTIQUE OPAL AND DIAMOND BROOCH, CIRCA 1900 in

Antique Early 20th Century Yellow & White Gold, Diamond, & Opal Cameo Brooch. Circa 1900. A rare large hand carved opal cameo of Floral in a border of old mine cut diamonds. Approximately 1.65 carats.

AN ANTIQUE DIAMOND HEART BROOCH, CIRCA 1900 in yellow gold, designed as a heart, jewelled allover to the front with old round cut diamonds totalling 6.0-7.0 carats, unmarked, 2.7cm, 10.1g.

AN ANTIQUE DIAMOND BAR BROOCH CIRCA 1900 designed as a tapering bar set with graduated old cut diamonds totalling 0.8-1.0 carats, with scrolling decoration to the sides, unmarked, 4.5cm, 3.1g.

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,

AN ANTIQUE NEPHRITE, RUBY, DIAMOND AND ENAMEL EGYPTIAN REVIVAL BROOCH, CARL BACHER, CIRCA 1900 in yellow gold, set to the centre with a carved nephrite jade scarab beetle, accented by rose cut diamond

An Outstanding Antique Fireman Sterling Silver Veteran F.A. of S.F. Pin Brooch, circa 1900, back marked, "A. Andrews Diamond Palace San Francisco 290", high relief front in the shape of a badge featur

Lot includes: 1. Butterfly brooch (circa 1900) made of 9K Gold integrated with silver, decorated with colorful Plique-à-jour enameling and set with Rose Cut diamonds weighing a total of approximate

A stunning antique bird brooch, set with diamonds and a ruby, in 9Kt gold, Ottoman Empire, Jerusalem, Israel (previously Southern Syria), circa 1870 - 1900. This fantastic and rare piece has been expe

Circa 1900-1925, 14K gold Including an onyx and gold brooch; a pair of gold quartz earrings; a pair of diamond and onyx earrings; and a pair of seed pearl and hair earrings 17.5 grams gross 7 pieces

A SILVER-TOPPED GOLD, PEARL, AND DIAMOND BROOCH, CIRCA 1900 Featuring a baroque pearl, suspended from a swag motif, set with old European-cut and old mine-cut diamonds, weighing approximately 1.00 car

AN ANTIQUE DIAMOND BROOCH, CIRCA 1910 in platinum, the rectangular face set formed of wirework designs, set with old cut and rose cut diamonds, unmarked, 2.8cm, 6.3g.

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

A late Victorian diamond garland brooch, circa 1900, the foliate and ribbon bow surround set with old cut diamonds, centred with the name of the steamship Turbinia, set with old cut diamonds, 4.5cm wi

A LATE VICTORIAN DIAMOND HEART BROOCH CIRCA 1900The gold backed silver pierced heart shaped panel with a central floral spray, with bow surmount, set though out with old brilliant cut and mine cut dia

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 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

AN ANTIQUE OPAL AND DIAMOND BROOCH in yellow gold and silver, set with a trio of graduated oval cabochon opals, accented by rose cut diamonds, no assay marks, 3.5cm, 2.6g.

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

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

NATURAL PEARL AND DIAMOND CLUSTER BROOCH, CIRCA 1900 - 2.87 carat button-shaped natural pearl - Cushion and old brilliant-cut diamonds, approx. 2.45cts total - Maker's mark, Austro-Hungarian assay mar

ANTIQUE OPAL, DIAMOND AND ENAMEL BROOCH, 19TH CENTURY in high carat yellow gold, in open heart design set with a moon cabochon opal, old and rose cut diamonds totalling approximately 10.00 carats and

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)

Antique black opal cameo set atop onyx set in platinum and 18kt white gold with diamonds. Width 1 3/8;; total weight 7.5 grams Condition: Two tight fissures in onyx at 12 and 6, perhaps intentional

ANTIQUE OPAL AND DIAMOND CRESCENT BROOCH,High carat gold.Opals well matched with nice play of colour including reds.Diam. 2.7 cm.5 grams.