Laboratory Diamond Jewellery › 0.81Ct Lab DIamond Ring - SQ3213961 0.81Ct Lab DIamond Ring - SQ3213961 $3,220.00 sold out 18Kt Yellow Gold Lab Diamond Ring set with a total of 0.81Ct of DEF Colour VS Clarity Lab DIamonds. Sold Out Added! 18Kt Yellow Gold Lab Diamond Ring set with a total of 0.81Ct of DEF Colour VS Clarity Lab DIamonds.