A Belle Epoque platinum vari-cut diamond and calibre-cut emerald and sapphire brooch, with later

A diamond and sapphire dress ring. The old-cut diamond, within a rose-cut diamond panel and calibre-cut sapphire border, with later applied platinum rose-cut diamond accent side band. AF. Principal di

Round and rose cut diamond, calibré sapphire, platinum and gold brooch, g 10.07, length cm 9.20 circa.Broche in oro giallo e platino con diamanti rotondi, mezza rosetta e zaffiri calibré, g 10,07, l

Belle epoque style cocktail ring of platinum and yellow gold, open pierce work set with 21 round early cut diamonds, later 14k gold adjustable expansion shank added. .15 total Troy oz

A BELLE ÉPOQUE PLATINUM AND DIAMOND BROOCH Designed as dragonfly wings set with rose-cut diamonds, millegrain accents, weight 4.6 dwt, French import stamp, length 2 9/16 in. For further informa

ART DECO SAPPHIRE AND DIAMOND BROOCH, 1930S in platinum, designed as a bow, pave-set with circular-cut diamonds, accented with calibre-cut sapphires, estimated total diamond weight 12.00-14.00 carats,

DIAMOND AND SAPPHIRE SAILFISH BROOCH Containing numerous single cut diamonds and numerous calibre cut sapphires. Mounted in platinum. 1 inch x 2 3/4 inches. Gross weight: 8.20 dwt.

An early 20th platinum and 18ct gold sapphire and diamond brooch. The circular-shape sapphire, within a rose-cut diamond surround and calibre-cut sapphire accents, to the rose-cut diamond sides. Frenc

Belle Epoque diamond and platinum brooch centered by a bezel set cushion old mine cut diamond weighing approximately 2.00 carats and two European cut diamonds 0.95 carats each, further accented by old

Platinum, Diamond and Simulated Emerald Pendant-Brooch One marquise-shaped diamond ap. 1.00 ct., 118 old European-cut diamonds ap. 3.95 cts., 2 triangle-shaped diamonds, calibré-cut simulated eme

AN ART DECO SAPPHIRE AND DIAMOND BROOCH, CIRCA 1920 in platinum, set with a cluster of round cut diamonds, within a border of calibre cut sapphires, the diamonds all totalling 1.4-1.6 carats, stamped

The rectangular platinum brooch with bow detail is set with 31 Old European cut single and full cut round Diamonds [H/SI], approximate total weight 1.00 carats, accented at the corners with eight trap

Faceted cushion cut lively blue sapphire, 12.61 x 10.94 x 7.10 mm., 9.75 cts. by formula, strapped motif shoulders with RBC and baguette cut diamonds, RBC diamond rails, approx. 1.0 cts. TW. Setting m

The exceptionally fine handmade art deco brooch is set with 212 old mine cut diamonds, 20 square calibre cut diamonds and 52 calibre cut sapphires set in platinum. The brooch has an approx. diamond we

Oscar Heyman Diamond, Sapphire, Platinum Brooch Stones: Full-cut diamonds weighing a total of approximately 1.20 carats; square and calibré-cut sapphires Metal&col

An Art Deco platinum emerald, sapphire and diamond ring. Of kite-shape outline, the square-shape emerald, with vari-cut diamond and triangular-shape sapphire geometric surround. Emerald weight 0.44ct.

18K And Platinum Victorian Belle Époque Diamond Pearl Pendant Brooch Stylized floral design with arrow and star details. Old cut diamond apx .45 carats. Pearls apx 3mm each. In excellent condition. T

A VINTAGE GEMSET FLOWER BASKET BROOCH in 18ct yellow gold and platinum, designed as a basket of flowers, set with single cut diamonds, round cut rubies, emeralds and sapphires, stamped 18ct PLAT, 4.0c

CARTIER, A DIAMOND, SAPPHIRE, EMERALD, ONYX AND PEARL PANTHERE BROOCH / PENDANT in platinum, designed to depict a panther running, its body jewelled with round brilliant cut diamonds and cabochon blue

Edwardian Diamond, Emerald, Platinum-Topped Gold Brooch Stones: European and Swiss-cut diamonds weighing a total of approximately 1.40 carats; calibré-cut emeralds Metal: Platinum-topped 18k go

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

A Platinum, Yellow Gold, Diamond, Ruby, Sapphire and Emerald Bird of Paradise Brooch, containing 90 round brilliant and single cut diamonds weighing approximately 1.90 carats total, numerous round mix

* An Art Deco Platinum, Diamond, Onyx and Emerald Bar Brooch, French, containing 133 old European and round single cut diamonds weighing approximately 2.70 carats total, 36 calibre cut onyx, and eight

A 14k yellow gold and platinum brooch in the form of a garden fence containing approximately 1.50 carats of rose cut diamonds along with ruby, sapphire and emerald "flowers". 1.75" x 1.25". 11.05 dwt.

A navette with overlapping channels of calibre-cut rubies and RBC diamonds, approx. 4.30 cts. TW; A rippling open form dotted with round faceted rubies, sapphire, emeralds and RBC diamond, approx. .06