Vintage Oscar Heyman Necklace Sapphire Diamond Platinum Bracelet Pair EstateA vintage Oscar Heyman necklace, made of platinum, featuring sapphire and diamond. The necklace design follows a classic tennis style arrangement, with deep blue sapphires and bright white diamonds alternating in an elegant pattern. Each sapphire is flanked by a pair of smaller diamonds. This necklace can be separated into two bracelets the feature that makes this piece suitable for different occasions and preferences. With its cool toned platinum