Laboratory Diamond Jewellery › 1.00Ct Lab Diamond Stud Earrings. IGI Certified - SQ9976919 Image 1 of 1 1.00Ct Lab Diamond Stud Earrings. IGI Certified - SQ9976919 $2,890.00 18Kt White Gold Lab Diamond Studs. Total Diamond Weight 1.0Ct. IGI Certified F SI1 Add To Cart Added! 18Kt White Gold Lab Diamond Studs. Total Diamond Weight 1.0Ct. IGI Certified F SI1