Laboratory Diamond Jewellery › 1.40ct White Gold Lab Diamond Stud- SQ8522164 Image 1 of 1 1.40ct White Gold Lab Diamond Stud- SQ8522164 $2,980.00 9kt White Gold Stud set with Lab Diamonds with a TDW of 1.40ct. E VS1. Add To Cart Added! 9kt White Gold Stud set with Lab Diamonds with a TDW of 1.40ct. E VS1.