Round diamond millegrain set platinum brooch, central

Round diamond millegrain set platinum brooch, central diamond ct. 0.60 circa, other smaller diamonds in all ct. 1.70 circa, g 15.80 circa, length cm 5.80 circa. IT Spilla in platino con diamanti roton

Centering a round cabochon turquoise in a pierced millegrain platinum motif, set throughout with old full and single cut diamonds with calibré cut gemstone flowers and turquoise detailing; total diam

A Victorian unmarked white gold or platinum diamond set brooch Of star form, the central stone spreading to approximately 0.5 carat. 4 cm wide.

A white gold diamond bow and ribbon brooch, A white gold diamond bow and ribbon brooch, designed as a stylised bow and ribbon, with a round brilliant cut diamond millegrain set to the centre, to a bla

Tiffany & Co., Schlumberger Gold, Platinum and Diamond Clip-Brooch The curved layered petals tipped by a diamond-set terminal and opening into an 'en tremblant' center of round diamond-set sprays, tot

Tiffany & Co., Paloma Picasso Gold, Platinum and Diamond 'Scribble' Brooch 18 kt., the polished scribble tipped by 9 platinum-set round diamonds ap. .20 ct., signed Tiffany & Co., Paloma Picasso, ap.

A Ruby & Diamond Circle Brooch. Platinum mounting contains 36 prong set round brilliant diamonds and 36 round rubies. The total diamond weight is approximately 1.80 carats. The diamonds are approximat

Antique handmade, ribbon form brooch set with Old Mine cut and Old European cut round brilliant diamonds. Bezel set in the center is one elongated pear shape diamond, measuring .66ct. Clarity SI1, Col

Containing a center round bezel set diamond, weight appx. .20ct, surrounded by eight prong set round diamonds, each weighing appx. .10ct, border of four groups of bezels set diamond, each weighing .03

Platinum diamond and sapphire brooch, central double cabochon, natural sapphire, 10.90 x 5.49 x 5.29 mm, with GIA sapphire report, 50 other sapphire of various sizes, 64 round brilliant diamonds of va

DESCRIPTION: A Platinum Diamond Brooch/Pendant features a dangling design inset with an array of Baguette, Marquee, and Round cut diamonds. The center set with the largest 0.5ct round Cut Diamond, fur

Including one brooch and a pair of earrings, each in a ribbon design with a wide band of small round brilliant cut diamonds pave set in platinum between raised yellow gold edges. Total of 62 diamonds

Platinum open circle brooch, set with baguette and round diamonds - approx. 2.40ctw. Brooch is 30mm in diameter. Marked: Maker's Mark Irid. Plat. Weight - 8.5 grams.

Ladies' exquisite circular platinum brooch, set with approx. ten rectangular cut sections of stunning Amethyst, alternating with settings containing round brilliant cut Diamonds. Measures approx. 1-3/

An early 20th-century diamond bar brooch millegrain-set with two round brilliant-cut diamonds, rose-cut diamond detail, unmarked(Length: 6.5cm)

weighing approximately 10.0 grams. crafted in solid Platinum, this exquisite piece is adorned by an outstanding (4) Large Genuine Diamonds round-cut, prong-set, ( G-H color and VS clarity) & (16) Larg

set with 58 round diamonds approx. 1.98 carats, appear nice clean stones, also with double bale to serve as a pendant, tests platinum, 1.6in., 11.7gms. (repair to bottom center with minor soldering to

Fourteen karats yellow gold and platinum. diamond set horse pin. The pin consists of a horse atop a platinum base accented with a total of twenty-four round brilliant cut diamonds. The pin secures wit

Art Deco Bug brooch Crafted in 18k yellow Gold and Platinum, set with Diamonds, Two Round Shaped Rubies and a 8mm Round Pearl. Weight: 5.6g. Measurements: 1.4x0.8".

Unmarked white metal diamond brooch, tests as platinum, filigree setting set with 13 round brilliant diamonds, the largest 6 mm, about 80 pts; (4) 5 mm, about 50 pts each; (4) 4 mm, about 25 pts each;

Art Deco platinum brooch displaying a central trio of (3) milgrain bezel set Old European cut diamonds measuring approx. 6.0mm, 4.5mm and 4.6mm. Diamonds are set within a platinum filigree frame displ

PLATINUM & DIAMOND BROOCH, 6.50CTW set with 58 marquise and round diamonds approx. 6.50 carats (in our opinion: I color, VS2-SI1clarity, however not guaranteed), largest diamond 0.34 carats, tests pla

Apparently unmarked, containing center bezel set round diamond. Slight Chip to Rock Crystal. Weight appx. 1.35carat, pave set diamonds, total weight appx. 2.58carat, 50 small calibre cut rubies, total

in a floral motif, centering on one prong set square cut emerald and two prong set emerald cut emeralds, with round brilliant cut diamonds bead set to the petals and a prong set round brilliant cut di