Early 20th C Opal and diamond ring, with central oval

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.

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

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 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 SAPPHIRE AND DIAMOND RING an oval-cut sapphire in a fancy claw setting, to diamond-set shoulders. French 18 carat gold assay mark, ring size J, 3.1 grams Two chips noted to the

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 SAPPHIRE AND DIAMOND CLUSTER RING an oval-cut sapphire within a fancy pierced milgrain border of round-cut diamonds, to diamond-set shoulders. Estimated total diamond weight 0.30

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.

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,

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 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.

A garnet and diamond ring. The oval garnet cabochon collet, with brilliant-cut diamond star highlight, to the similarly-cut diamond collet sides and replacement early 20th century plain band. Estimate

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 platinum and 18ct gold coral and diamond dress ring. The replacement oval-shape coral cabochon, within a rose-cut diamond openwork panel surround, to the similarly-set diamond sh

MARCUS & CO: SAPPHIRE AND DIAMOND BROOCH/PENDANT, EARLY 20TH CENTURY The central oval-cut sapphire within an openwork quatrefoil border of floral and foliate motifs, millegrain-set throughout with old

18K Yellow Gold Oval Pendant, early 20th c., with a pierced scrolled border mounted with seed pearls, around a central cabochon oval opal within a seed pearl border, H.- 1 3/8 in., W.- 1 3/16 in., Opa

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

DIAMOND AND SAPPHIRE CLUSTER RING, EARLY 20TH CENTURY The central cushion-shaped diamond, weighing 1.65 carats, within borders of calibré-cut sapphires and single-cut diamonds, ring size Q Footno

AN EARLY 20TH CENTURY RUBY, SAPPHIRE AND DIAMOND THREE LEAF CLOVER RINGThe clover composed of a cushion cut ruby and sapphire with an old European cut diamond, with a central old cut diamond and an ol

NO RESERVE - A SAPPHIRE AND DIAMOND CLUSTER RING, EARLY 20TH CENTURY in 18ct yellow gold and platinum, set with an oval cut blue sapphire within a border of single cut diamonds, maker's mark SH&Co, st

AN ANTIQUE SAPPHIRE AND DIAMOND CLUSTER RING, EARLY 20TH CENTURY in 18ct yellow gold and platinum, set with an oval cut sapphire within a halo of round cut diamonds, stamped 18ct Plat, size N / 6.5, 2

American and English, early-late 20th century. Three rings to include: 10K oval cluster ring with center opal surrounded by twelve small round rubies, Sz 7.25; 9K ring with English hallmarks, center o

Early 20th century. Having oval cut sapphire flanked by two 1/4" ctw old mine cut diamonds inset into an elegant band. Size 7.25 4 grams standard all in Sold from the collection of a private South Car

Early-late 20th century. Group of vintage yellow gold jewelry comprised of: 10K ring with oval onyx inset with small single cut diamond; two 10K service pins; 10K gold band with floral design, size 10