Laboratory Diamond Jewellery › 4.50ct Lab Diamond Stud Earrings- SQ8907590 Image 1 of 1 4.50ct Lab Diamond Stud Earrings- SQ8907590 $5,800.00 18kt White Gold Lab Diamond Studs. TDW 4.50ct. D VS1 Add To Cart Added! 18kt White Gold Lab Diamond Studs. TDW 4.50ct. D VS1