1930s Art Deco Diamond and Platinum Double Clip Brooch

AN ART DECO DIAMOND DOUBLE CLIP BROOCH, BY OSTERTAG, 1930s, Of stylised shield outline, with pave-set brilliant cut Diamonds and Baguette Diamonds. The brooch features a square centre stone that is interchangebale. Blue Topaz 8.45 ct, white Crystal Quartz 7.35 ct, Amethyst 6.95, Tourmaline 7.50 ct, Onyx 9.90 ct and pink Topaz 7.65 ct. Dimensions: 3.50 cm x 3.30 cm. Weight without centre gemstone: 13.25 grams. The brooch can also be worn with a 18 K white Gold multistand necklace, 25.40 grams. The necklace is not original from the brooch and period but makes it much more wearable. Length of necklace: 43 cm. Comes in original box! Ostertag was founded in the 1920’s by Swiss-born Arnold Ostertag...

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Finely crafted in platinum with a pair of Old European cut center Diamonds weighing a total of approximately 3.40 carats, Baguette cut Diamonds weighing a total of approximately 2.50...

Finely crafted in platinum with 2 Old European cut center Diamonds weighing approximately a total of 2.00 carats, as well as smaller Old European and Baguette cut Diamonds weighing a...