OSCAR HEYMAN Platinum & Diamond Antique Pendant

Platinum antique diamond pendant by Oscar Heyman; 6 European Cut Diamonds 0.30 carat total weight, VS-1, G; new platinum 18" chain 2.4 DWT or 3.73 Grams.

The pendant is only marked PLAT for platinum but not hall marked HB (Heyman Brothers) because there was a period of time where Oscar Heyman did wholesale jewelry work for the major jewelry houses like Tiffany & Co. in these cases we are able to know it is Oscar Heyman by the craftsmanship, specifically for Oscar Heyman, his pieces will have a support layer underneath connected by "O" rings which are viewable on the side profile. We have attached the side view photos of the pendant showing these characteristic "O" ring supports.