<http://schema.org/itemOffered>
"GIA Certified Light Violet Round Ceylon Sapphire - 2.51 cts 8.63x8.58x5.06 mm"^^<http://www.w3.org/2001/XMLSchema#string>
<https://www.simplysapphires.com/blue/blue-round-ceylon-sapphire-2.52-cts-8.5mm>