Laboratory Diamond Jewellery › 1.53Ct Lab Diamond Ring - IGI Certified - SQ8315750 Image 1 of 1 1.53Ct Lab Diamond Ring - IGI Certified - SQ8315750 $4,780.00 18Kt Yellow Gold Lab Diamond Ring set with a 1.53Ct E Colour SI1 Clarity Diamond. IGI Certificate #LG514270717 Add To Cart Added! 18Kt Yellow Gold Lab Diamond Ring set with a 1.53Ct E Colour SI1 Clarity Diamond. IGI Certificate #LG514270717