Laboratory Diamond Jewellery › 1.86Ct Lab Diamond Ring - IGI Certified - SQ7100804 Image 1 of 1 1.86Ct Lab Diamond Ring - IGI Certified - SQ7100804 $5,880.00 18Kt Yellow and White Gold Setting Oval Lab Diamond of 1.86Ct. E Colour VS1 Clarity. IGI Cert #LG602375066 Add To Cart Added! 18Kt Yellow and White Gold Setting Oval Lab Diamond of 1.86Ct. E Colour VS1 Clarity. IGI Cert #LG602375066