Laboratory Diamond Jewellery › 3.39ct Lab diamond solitaire - SQ3811485 Image 1 of 1 3.39ct Lab diamond solitaire - SQ3811485 $14,890.00 18Kt yellow gold and platinum setting lab diamond. G colour SI2 clarity IGI cert. Add To Cart Added! 18Kt yellow gold and platinum setting lab diamond. G colour SI2 clarity IGI cert.