A synthetic ruby and diamond five-stone crossover ring.

A synthetic ruby and diamond five-stone crossover ring. The alternating graduated circular-shape synthetic ruby and old-cut diamond diagonal line, to the asymmetric sides and plain band. Estimated tot

Three mid 20th century gold diamond rings. To include a brilliant-cut diamond crossover ring, a diamond five-stone ring, and a circular-cut diamond crossover ring. Estimated total diamond weight 0.55c

Four diamond rings. To include an illusion-set diamond five-stone ring, a diamond three-stone crossover ring, a colourless gem cluster ring, together with a colourless gem dress ring. Estimated total

Three gem-set rings. To include a mid 20th century synthetic sapphire single-stone ring, a graduated diamond five-stone ring, together with a graduated diamond three-stone crossover ring. One AF. Esti

Two early 20th century platinum and 18ct gold diamond and gem-set rings. To include a diamond three-stone crossover ring, together with an alternating sapphire and old-cut diamond five-stone ring. Est

Two 14ct gold gem-set rings and two pendants. To include a 14ct gold tanzanite and diamond crossover ring, a 14ct gold tanzanite five-stone ring, together with a tanzanite and diamond pendant and a pi

A diamond five-stone ring. The graduated brilliant-cut diamond diagonal line, with crossover shoulders. Estimated total diamond weight 0.75ct, principal diamonds estimated I-J colour, SI clarity. Hall

Five gold gem-set rings. To include an early 20th century platinum and 18ct gold single-cut diamond three-stone crossover ring, an early 20th century 18ct gold and platinum synthetic ruby dress ring,

A mid 20th century turquoise and diamond five-stone ring. The old-cut diamond, with circular turquoise cabochon and single-cut diamond sides, to the crossover shoulders. Estimated total diamond weight

A mid 20th century turquoise and diamond five-stone ring. The old-cut diamond, with circular turquoise cabochon and single-cut diamond sides, to the crossover shoulders. Estimated total diamond weight

Five diamond and gem-set rings. To include an 18ct gold diamond tri-colour crossover band ring, a 9ct gold diamond three-stone ring, with three further rings. Estimated total diamond weight 0.25ct. On

A platinum diamond five-stone ring. The rectangular brilliant-cut diamond, weighing 1.02cts, with graduated similarly-cut diamond sides, to the plain band. Accompanied by five diamond reports from GIA

A DIAMOND FIVE STONE RING graduated old-cut diamonds in claw settings. Estimated principal diamond weight 1.45ct, estimated total diamond weight 3.20ct, marked '18CT', ring size L1/2, 4.0 grams Est

DIAMOND FIVE-STONE RING Set with brilliant-cut diamonds, diamonds approx. 4.30cts total, ring size approx. I½

A diamond five-stone ring. Designed as an old-cut diamond line, with rose-cut diamond spacers, to the engraved gallery and shoulders. Estimated total diamond weight 3.20cts, H-J colour, SI2-P2 clarity

AN ANTIQUE UNHEATED RUBY AND DIAMOND FIVE STONE RING in high carat yellow gold, set with a central old cut diamond of 1.04 carats between two further old cut diamonds and two cushion cut rubies totall

DIAMOND FIVE-STONE RING Set with five brilliant-cut diamonds and similarly-cut diamond accents, diamonds approx. 2.30cts total, ring size approx. O For further information on this lot please visit Bon

DIAMOND FIVE-STONE RING Set with five old brilliant-cut diamonds, accented with rose-cut and single-cut diamonds, the gallery and shoulders of scrolling design, diamonds very approx. 2.85cts total, ri

A VINTAGE DIAMOND FIVE STONE RING in 18ct yellow gold, set with a graduated row of old cut diamonds all totalling 3.2-3.4 carats, stamped 18CT, size M / 6, 3.7g.

A DIAMOND FIVE STONE RING graduated old-cut diamonds in claw settings. Estimated total diamond weight 2.35ct, ring size M1/2, 4.2 grams One of the inner diamonds with a fracture to the crown. Estim

A DIAMOND FIVE STONE RING in 18ct yellow gold, set with five graduated old cut diamonds, accented by rose cut diamonds, the diamonds all totalling 2.7-2.9 carats, stamped 18ct, size P / 7.5, 4.2g.

AN ANTIQUE DIAMOND FIVE STONE RING in yellow gold, set with a graduated row of old cut diamonds all totalling 2.2-2.4 carats, rubbed hallmarks, size M / 6, 3.0g.

DIAMOND FIVE-STONE RING Set with graduated old brilliant-cut diamonds, diamonds approx. 1.20cts total, ring size approx. M, cased by A. Marx & Co., 121 Regent St., London Footnotes: Provenance: Sheila

DIAMOND FIVE-STONE RING Set with graduated cushion-shaped diamonds, diamonds approx. 1.80cts total, ring size approx. Q½