Laboratory Diamond Jewellery › 1.86ct Lab Diamond Studs Earrings- SQ1031274 Image 1 of 1 1.86ct Lab Diamond Studs Earrings- SQ1031274 $2,900.00 18kt White Gold Lab Diamond Stud Earrings with a TDW of 1.66ct. E VVS2. Add To Cart Added! 18kt White Gold Lab Diamond Stud Earrings with a TDW of 1.66ct. E VVS2.