From Gwen Stefani's $500,000 sparkler to Mariah Carey's 35-carat emerald-cut diamond, here are the most expensive celebrity ...
Check price at Blue Nile 3. James Allen IGI Lab-Grown 1.16 Carat E-VVS2 Cushion Modified Cut Diamond Classic Split Shank Solitaire Diamond Engagement Ring James Allen Cushion Modified Cut Diamond ...