An Amethyst, diamond and pink sapphire cluster ring The cushion-shaped amethyst within a pavé

SAPPHIRE AND DIAMOND CLUSTER RING The cushion-shaped sapphire, within a brilliant-cut diamond surround, between heart-shaped diamond cluster shoulders, heart shaped diamonds approx. 0.50ct total, ring

SAPPHIRE AND DIAMOND CLUSTER RING The cushion-shaped sapphire within a cushion-shaped diamond surround, diamonds approx. 2.30cts total, ring size approx. M

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

SAPPHIRE AND DIAMOND CLUSTER RING, 19TH CENTURY The cushion-shaped sapphire, weighing 5.74 carats, within a border of old brilliant-cut diamonds, between scroll engraved bifurcated shoulders in 18 car

A SAPPHIRE AND DIAMOND CLUSTER RING The cushion-shaped sapphire weighing 5.70cts set in a four-claw setting within a brilliant-cut diamond frame, mounted in 18K gold, diamonds approximately 1.20cts, r

A PINK SAPPHIRE AND DIAMOND CLUSTER RING, composed of a central oval-shaped pink sapphire within a baguette-cut diamond surround to similarly-cut and single-cut diamond shoulders, mounted in 18K gold,

A SAPPHIRE AND DIAMOND CLUSTER RING The oval-shaped pink sapphire within a four-claw setting, to a marquise and brilliant-cut diamond surround, mounted in gold, diamonds approximately 0.70ct total, ri

SAPPHIRE AND DIAMOND CLUSTER RING The oval-cut sapphire within a surround of cushion-shaped diamonds, diamonds approx. 0.80ct total, ring size approx. P Footnotes: Accompanied by a report from GCS sta

MULTIGEM AND DIAMOND RING Containing one cushion mixed cut kunzite measuring approximately 13.90 x 10.00 x 7.30 mm, four marquise cut amethysts, numerous round mixed cut pink sapphires and 24 round br

14K GOLD: three diamond, amethyst, jade, paste stone and white sapphire. 10K GOLD: diamond cluster, cameo, topaz and red synthetic, 24.3 dwt gross together with gold filled garnet and pink stone

THREE GEM-SET RINGS 1st: Set with a hexagonal-shaped amethyst, 2nd: The opal cabochon within a surround of cushion-shaped diamonds, between trifurcated shoulders, 3rd: The cushion-shaped tourmaline wi

TWO GEM-SET RINGS 1st: The navette-shaped plaque, pavé-set with cushion-shaped diamonds, centrally-set with a circular-cut ruby, 2nd: The oval-cut sapphire within a brilliant-cut diamond surround

AMETHYST AND DIAMOND CLUSTER RING The octagonal-cut amethyst within a single-cut diamond surround, ring size approx. P For further information on this lot please visit Bonhams.com

AMETHYST AND DIAMOND PENDANT/NECKLACE The cushion-shaped amethyst within an openwork frame set with cushion and rose-cut diamonds, mounted in platinum, chain with London import mark, lengths: pendant

RUBY AND DIAMOND CLUSTER RING, CIRCA 1830; DIAMOND CLUSTER RING, 19TH CENTURY 1st: The cushion-shaped ruby within a surround of similarly-shaped diamonds, between shoulders set with pear-shaped rubies

AN 18 CARAT GOLD AMETHYST AND DIAMOND CLUSTER RING an oval-cut amethyst within a border of round brilliant-cut diamonds. Estimated total diamond weight 0.90ct, hallmarked London 2021, ring size N, 6.5

A RUBY AND DIAMOND CLUSTER RING The cushion-shaped ruby weighing approximately 2.15cts within a surround of old brilliant-cut diamonds, mounted in 18K gold, diamonds approximately 2.20cts total, ring

SAPPHIRE AND DIAMOND RING The cushion-shaped sapphire within a surround of brilliant-cut diamonds, between similarly-cut diamond shoulders, ring size K Footnotes: Accompanied by a report from GCS stat

DIAMOND CLUSTER RING The cushion-shaped diamond, weighing 1.87 carats, within a brilliant-cut diamond surround, remaining diamonds approx. 0.45ct total, ring size approx. R½

TANZANITE AND DIAMOND CLUSTER RING The cushion-shaped tanzanite, weighing 6.40 carats, within a surround of brilliant-cut diamonds, diamonds approx. 1.40cts total, ring size approx. N Footnotes: Pleas

Mauboussin Paris White and Blackened Gold, Citrine, Pink Sapphire, Diamond Ring 18 kt., one cushion-shaped citrine ap. 35.40 cts., 54 round diamonds ap. .90 ct., round pink sapphires, signed Mauboussi

A SAPPHIRE AND DIAMOND RING, centring a cushion-shaped sapphire within collet-setting, to a fancy-cut sapphire and single-cut diamond surround, ring size K

PINK SAPPHIRE AND DIAMOND THREE STONE RING The cushion-shaped sapphire, weighing 5.12 carats, between trilliant-cut diamond shoulders, ring size M Footnotes: Accompanied by a report from The Gem & Pea

A SAPPHIRE AND DIAMOND CLUSTER RING a cushion-cut sapphire within a milgrain halo border of eight-cut diamonds, to diamond-set shoulders and a reeded shank. Estimated total dia