Laboratory Diamond Jewellery › 1.60ct White Gold Diamond Studs- SQ7236484 Image 1 of 1 1.60ct White Gold Diamond Studs- SQ7236484 $3,280.00 18kt White Gold Lab Diamond Studs with a TDW of 1.60ct. E VVS1. Add To Cart Added! 18kt White Gold Lab Diamond Studs with a TDW of 1.60ct. E VVS1.