David Webb Vintage 18k Yellow Gold, Platinum, Azurmalachite, Ruby & Diamond Necklace. The necklace is crafted from carved azurmalachite with 18k yellow gold, platinum, diamond, and ruby inlay. Why pay retail for David Webb when you can buy pre-owned in excellent condition and save big! Diamond weight: 5.00cts Polished Gold. Rubies. Inside circumference 15.5 inches. Drops at 16 inches. 232 grams. Center Diamond Weight: 5.00 Measurements: 16 inches Metal Type: Platinum & 18K Yellow Gold Metal Weight: 232.5 gr. Signed: WEBB Condition: Excellent. Stock: RR8518