Laboratory Diamond Jewellery › 3.0ct Total Lab Diamond Stud- SQ1769163 Image 1 of 1 3.0ct Total Lab Diamond Stud- SQ1769163 $4,789.00 sold out An 18kt White gold Lab grown Diamond stud with a TDW of 3.0ct. E VVS2. Sold Out Added! An 18kt White gold Lab grown Diamond stud with a TDW of 3.0ct. E VVS2.