Antique Platinum Mine Cut Diamond Bar Pin Brooch

Ca. first quarter 20thC. Excellent original condition with three 3 1/2mm center full cut diamonds, set among forty-six 1mm mine cut diamonds placed diagonally within the checkered interior. The border

This is an antique Art Deco bar brooch pin/pendant rendered in fine 14K white gold. The filigree brooch features 21 Old European cut diamonds of VS-SI clarity and HI color. It is 2 1/2" long and it we

This is an antique platinum large brooch bar pin with delicate filigree studded with Old European and Old Mine cut diamonds. The diamonds are VS-SI in clarity and GH in color. The pin is 3 7/8 x 3/4".

Ca. first quarter 20thC. Amazing quality throughout with 68 clear Columbian emeralds and 82 clear full cut diamonds surrounding the large central EVS1 diamond. Weight approx. 12.9 Grams. Measures appr

METAL: 18k Gold/ Platinum. MEASUREMENTS: Brooch is 58mm x 4.8mm. Comes with box. GEMSTONES: Old mine and rose cut diamonds approx.1.00-1.20ctw. TESTED: 18k/ Plat top. WEIGHT: 3.8 grams.Gemstones have

METAL: 18k Gold. GEMSTONES: Two small rose cut diamonds. Ruby. Center gemstone is chipped. MEASUREMENTS: Brooch is 43mm x 5mm (missing a dangle element). TESTED: 18k, Plat. WEIGHT: 3.2 grams.Gemstones

Antique platinum bar pin displaying (12) Old Mine cut diamonds. Diamonds average approx. 3.5mm x 2.5mm. With a 14kt yellow gold brooch backing. Total approx. weight of the brooch is 3.7 dwt (gross). F

DESCRIPTION: An Art Deco platinum bar pin/brooch centered by an Angel Skin Coral cabochon, encompassed by approx. 1.8cts of round cut diamonds, further finished with etched patterns along the bar. Tot

METAL: 18k Gold, Platinum. GEMSTONES: Center diamonds approx. 0.13ctw. Rose cut diamonds. MEASUREMENTS: Brooch/Pin is 70mm x 6mm. MARKED/TESTED: 750, Platinum. WEIGHT: 4.8 grams.Gemstones have not bee

Old European cut diamonds set in platinum filigree with gold pin back. Approximately 1.5 carat center stone with .75 carat side stones as well as many small diamonds throughout. Dimensions: L 2.75" x

A fine Victorian diamond floral formed bar pin / brooch. Formed as a rose with leaves and stem, adorned with a multitude of rose cut diamonds set in platinum and with a 14K yellow gold backing and pin

This is an antique Art Deco 14K white gold filigree bar brooch pin featuring single and full cut diamonds of SI clarity and GH color. 2 7/8" long and it weighs 4.9g. The diamonds range from 1.5-2.4mm.

UDALL & BALLOU ART DECO PLATINUM, 18K GOLD, SAPPHIRE, AND DIAMOND BAR PIN / BROOCH, tested, marked "U&B", featuring 11 hexagonal-cut sapphires in slightly tapering sizes from 4.1 to 4.7 mm side to sid

This is an antique platinum filigree Art Deco bar pin studded with Old European cut diamonds. The diamonds are SI clarity and HI-JK color. The pin is 2 3/4" long and it weighs 7.4g total. The diamonds

Art Deco White Gold Filigree Bar Pin Brooch, with Diamonds & Rubies. Long white gold filigree brooch set with three full cut rubies and two full cut diamonds. Marked: 14k. Total approximate weight: 5.

19th Art Nouveau Century Brooch, by R. Koch, Antique European brooch; a mix of gold and silver, set with emeralds, rubies sapphires and rose cut diamonds. Bar pin clasp. Stamped R. Koch apprx 14.8 gra

Bar brooch: Eagle's head hallmark / C (insect) C Including an antique platinum topped 14k yellow gold stylized circle brooch set with two round rubies, multiple rose-cut diamonds and two old mine-cut

METAL: Platinum and 14k Gold. GEMSTONES: Old mine cut diamonds approx. 0.84ctw (center diamond approx. 0.62ct). MEASUREMENTS: Brooch is 38mm x 11mm wide. TESTED: Plat, 18k. WEIGHT: 3.7 grams.Gemstones

F.W. Drosten, Art Deco platinum and 14k rose gold accented diamond bar pin or brooch featuring one larger old mine cut and (18) smaller single cut diamonds weighing approximately 0.50cts total of I-1/

A ladys diamond, platinum and medium karat (14k) yellow gold brooch. 64 x 6 millimeter bar brooch has a an open geometric scroll motif and is centered by one .15 carat Old European Cut diamond that is

METAL: Platinum/14k Gold hardware. MEASUREMENTS: Brooch is 77mm x 15mm. GEMSTONES: Old mine cut diamonds - approx. 1.80-2.00ctw. TESTED: Plat/14k. WEIGHT: 9.8 grams.Gemstones have not been graded for

Ladies Platinum antique bar style brooch, containing one modified brilliant cut marquis cut Diamond measuring approximately 6.5 X 3.0 X 2.0 millimeters, weighing approximately .50 Carat, GIA Color gra

Early platinum 7 diamond, 8 rectangular caliper-cut sapphire Art-Deco filigree bar pin. (4.2 dwt.) Vintage J.E. Caldwell leather box included but not original to pin.

AMAZING 6 VS, G-H COLOR ANTIQUE, MINE CUT DIAMONDS. 2 CARATS. PLATINUM TOP 40MM BY 18MM. MARKED "14K" WHITE GOLD WEIGHS 4.3 GRAMS. ALL EXCELLENT CONDITION. US SHIPPING $25.