Laboratory Diamond Jewellery › 2.50ct White Gold Stud - SQ5658090 Image 1 of 1 2.50ct White Gold Stud - SQ5658090 $4,900.00 A 14ct White Gold Stud earring set with a Lab Diamond with a TDW of 2.50cts. D VS2. Add To Cart Added! A 14ct White Gold Stud earring set with a Lab Diamond with a TDW of 2.50cts. D VS2.