An early 20th-century opal half-hoop ring in 18ct gold, featuring five graduated cabochon opals, of

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

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 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 oval opal cabochon, to the single-cut diamond and circular opal cabochon sides. Weight 3.2gms.

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.

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

Two late 19th and mid 20th century 18ct gold diamond and gem rings. To include a late 19th century graduated opal cabochon three-stone ring with diamond point double spacers, together with a similarly

ANTIQUE OPAL RING in 18ct yellow gold, set with five graduated cabochon opals, British Hallmarks for 18ct yellow gold, size O / 7, 3.2g.

NO RESERVE - AN ANTIQUE OPAL FIVE STONE RING in 18ct yellow gold, set with five graduated oval cabochon opals, stamped 18ct, size P / 7.75, 4.8g.

NO RESERVE - AN OPAL FIVE STONE RING, 1923 in 18ct yellow gold, set with a row of five graduated cabochon opals, full British hallmarks for Chester 1923, size V1/2 / 11, 3.4g.

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

An early 20th century 18ct gold diamond five-stone ring. The graduated circular-cut diamond line, with openwork gallery. Estimated total diamond weight 0.25ct. Hallmarks for Birmingham, 1919. Ring siz

An early 20th century 18ct gold diamond five-stone ring. The graduated old-cut diamond line, to the tapered band. Estimated total diamond weight 0.45ct, I-J colour, SI2-P3 clarity. Hallmarks for Londo

An early 20th century 18ct gold diamond five-stone ring. The graduated old-cut diamonds, to the scrolling shoulders and replacement band. Estimated total diamond weight 0.35ct, I-J colour, SI clarity.

An early 20th century 18ct gold diamond five-stone ring. The graduated circular and single-cut diamond line, to the scrolling gallery and shoulders. Estimated total diamond weight 0.50ct, H-I colour,

An early 20th century 18ct gold diamond five-stone ring. The graduated single-cut diamond line, with scrolling shoulders. Estimated total diamond 0.10ct. Hallmarks for Birmingham, 1914, partially indi

A late Victorian 18ct gold opal five-stone ring. The graduated oval opal cabochon line, with rose-cut diamond spacers. Hallmarks for Birmingham, 1896. Ring size O1/2. Weight 4.4gms.

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 diamond five-stone ring. Designed as a graduated old-cut diamond line, with pierced surround and tapered shoulders. Estimated total diamond weight 0.35ct. Ring size O.

An early 20th century 18ct gold diamond five-stone ring. Designed as a graduated vari-cut diamond line. Estimated total diamond weight 0.20ct. Hallmarks for 18ct gold, partially indistinct. Ring size

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 Edwardian 18ct gold opal five-stone ring. The oval-shape opal cabochon graduated line, to the openwork gallery and tapered band. Hallmarks for Chester, 1901, partially indistinct. Weight 2.4gms.

Early 20th century. Edwardian hinged bangle bracelet, stamped 15K, squared profile with a flat top and sides, featuring prong set oval cabochon opal measuring approx. 15.1 x 11.2 x 4.2mm. Simple gold

A VICTORIAN STYLE 14K YELLOW GOLD AND OPAL RING, FIRST HALF 20TH CENTURY, the cluster ring centers a ten prong set oval cabochon opal measuring approximately 7.2mm x 4.9mm surrounded by a halo of ten