Round diamond and platinum openwork brooch with a

Vintage circular platinum openwork brooch with central Old European cut diamond measuring approx. 4.0mm surrounded by single cut, round brilliant cut, and Old European cut diamonds. Total approx. weig

Attributed to Edward Everett Oakes Arts and Crafts Gold, Platinum, Diamond, Amethyst and Pearl Brooch The shield-shaped brooch of open-work scrolling grape vines set throughout with 5 oval and round a

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

One Art Deco period lady's round platinum diamond & sapphire brooch. The brooch measures approx. 1.50" round and features a total of twenty-three (23), bead set old mind cut diamonds measuring 1.70 -

DIAMOND AND PLATINUM BROOCH 2 CTS APPROX. H 1 1/2" W 1 1/4":30 full cut round diamonds in surround "F" color, v. s. 1 clarity. Three marquis shape diamonds, seven baguettes, eight full cut round diamo

7 Round diamonds, platinum top on 14K yellow gold, 2 1/4" across, 4.1 Grams

Large Approx. 5.75 Carat Round Brilliant Cut Diamond, Platinum and 18 Karat Yellow Gold Brooch. Diamonds E-F color, VVS clarity. Unsigned. Very good condition. Measures 2-1/2" x 1-3/4". Approx. weight

Platinum and Diamond Brooch 10 round, 42 oval and 28 baguette diamonds ap. 7.15 cts., ap. 12 dwts. •

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

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

18k Yellow Gold Jewelry Assortment (4) items including (2) band rings, an openwork brooch having two round cut diamonds and a circle brooch (most marked '18k') Property from: a Chicago, Illinois (Hyde

Custom mid-century articulated diamond and platinum brooch, of spray from, having 81 round, pear, baguette, and marquise diamonds of G-H color and VS1 to VS2 clarity, weighing 17.30ctw, with no appare

Platinum brooch in the style of bow set with over 460 round and baguette cut diamonds weighing approx. 9.5 carats. 16.5dwt and 2.75"w

An emerald, diamond, and platinum brooch floral form set with pear-shaped emeralds, accented throughout with round brilliant-cut and baguette-cut diamond tendrils; estimated total diamond weight: 6.00

Art Deco Diamond, Emerald, Platinum BroochCentering a marquise-shape diamond weighing approximately 0.50 ct., accented by one hundred fourteen marquise, pear, round brilliant and single-cut diamonds w

A ruby, diamond, and platinum brooch designed as an articulated cluster of rubies, surmounted by straight baguette, round, and pear-shaped diamonds; estimated total diamond weight: 7.00 carats. Length

A VINTAGE DIAMOND PLAQUE BROOCH, 1930s, in 18ct yellow gold and platinum, the openwork brooch set throughout with old cut diamonds, the diamonds totalling 3.0-3.5 carats, stamped 18ct and PL, 4.6cm, 7

Fine jadeite, diamond and platinum foliate-form brooch; the platinum mount of curvilinear ribbon-like design, set with approx. 40 modern brilliant round and single cut diamonds; radiating 'leaves&

Brilliant Diamond and 16 smaller round diamonds totaling another .38 carat in fancy openwork platinum setting, with 2001 appraisal of $7,500.00.

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

A jadeite, diamond and platinum broochdesigned as an oval cabochon jadeite, measuring approximately 14.40 x 10.90 x 7.35 mm, within fluted mounting set with scrolling round brilliant-cut diamond pav&#

LADIES EQUESTRIAN DIAMOND AND PLATINUM BROOCH Consisting of 1-platinum pendant mounting, 48-round brilliant cut diamonds weighing approximately 74/100 carats total VS1-VS2 clarity, H color 5.30 grams.

Vintage Approx. 4.0 Carat TW Round Brilliant and Baguette Cut Diamlnd and Platinum Circular Brooch. Diamonds E-F color, VVS-VS clarity. Stamped Plat. Measures 1-1/4" diameter. Approx. weight: 12.17 gr

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