An early 20th century opal and diamond pendant/brooch,

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

Three late Victorian to early 20th century gold gem-set rings. To include an early 20th century opal and diamond three-stone ring, a late Victorian split pearl enamel ring, together with one further e

A LATE 19TH / EARLY 20TH CENTURY BLACK OPAL AND DIAMOND NECKLACE graduated oval black opals suspended from diamond-set knife-edge bars to black opal and diamond swag links, to a diamond-set double bar

An early 20th century gold, opal and diamond cluster ring. The heart-shape opal cabochon, with old-cut diamond surround. Estimated total diamond weight 0.45ct. Ring size N. Weight 3.6gms.

An early 20th century gold opal and diamond ring. The oval opal line, with old-cut diamond double spacers. Estimated total diamond weight 0.25ct. Ring size J1/2. Weight 3.9gms. Overall condition good.

AN EARLY 20TH CENTURY PEARL AND DIAMOND PENDANT / BROOCH a pearl within an openwork diamond and seed pearl-set clover leaf frame. Estimated total diamond weight 0.90ct, 3.2cm diameter, 8.8 grams One

An early 20th century 18ct gold opal and diamond three-stone ring. The graduated oval opal cabochon line, with old-cut diamond double spacers. Estimated total diamond weight 0.10ct. Ring size L1/2. We

An early 20th century 18ct gold opal and diamond ring. The graduated oval opal cabochon line, with old-cut diamond line spacers and tapered shoulders. Hallmarks for Birmingham. Ring size Q1/2. Weight

An early 20th century 18ct gold opal and diamond ring. The oval opal cabochon, to the single-cut diamond and circular opal cabochon sides. Weight 3.2gms.

Three gold gem-set rings. To include an early 20th century 18ct gold opal and diamond dress ring, a 9ct gold garnet band ring, together with one further ring. One AF. Hallmarks for gold, one partially

A BELLE EPOQUE DIAMOND PENDANT / BROOCH, EARLY 20TH CENTURY in yellow gold and platinum, the foliate body suspending swags, jewelled throughout with old European, single and rose cut diamonds, the dia

An early 20th century gold, opal cabochon and old-cut diamond cluster ring, estimated total diamond weight 0.80ct, I-J colour, SI clarity, opal measures approximately 13.5 by 11 by 3.9mm, ring size S,

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 early 20th century 18ct gold diamond and opal dress ring. The oval-shape opal cabochon line, with old-cut diamond spacers. Hallmarks for Birmingham, 1916. Ring size N1/2. Weight 3.5gms. Overall con

late 19th or Early 20th Century. Figural Jade and Pearl Bug, Opal, and Diamond. 10K and 18k, Total weight: 7.5 grams / 4.9 dwt. good condition. some minor signs of use.

ANTIQUE BLACK OPAL AND DIAMOND RING, EARLY 20TH CENTURY mounted in yellow gold, claw-set with an oval black opal measuring 14.8 x 10.5mm,and weighing approximately 3.36 caarts, within a border of circ

AN ANTIQUE OPAL AND DIAMOND RING, EARLY 20TH CENTURY in 18ct yellow gold and platinum, set with three cabochon opals, accented by round cut diamonds, stamped 18CT & PT, size L / 5.75, 2.7g.

This is an antique 14K gold pendant necklace dating to the early 20th century. The pendant features a large prong set opal cabochon with vibrant green, blue, and red fire. Accented by three full cut d

A group of Early 20th Century opal and fourteen karat gold jewelryincluding a pair of floriform oval jelly opal cluster stud earrings; two rings set with oval opal cabochons or old mine-cut diamonds.

An early 20th century 18ct gold opal five-stone ring. The graduated oval opal cabochon line, with diamond point double spacers. AF. Hallmarks for Birmingham, partially indistinct. Ring size O. Weight

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

Late 20th/ early 21st century Designer. Asher and signed Ash Attractive bracelet containing opals, tanzanite and diamonds

An engraved gold hatching snake with OEC diamond eyes, approx. .01 ct. TW, and round cut sapphire accent, on chain; A green enameled snake and textured gold skull brooch. 14k. Early 20th c. 1 1/2" x 1

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