The ring designed as a pavé diamond dome featuring numerous onyx spikes. Diamonds weighing a total of approximately 3.65 carats Onyx weighing approximately 2.45 carats Signed Cartier 18 karat white gold Circa 2000s Gross weight approximately 10.03 dwts Center Diamond Weight: 0.00 Measurements: Size: 55 Metal Type: 18K White Gold Stock: RR8349