A simply gorgeous Estate ring set in solid Platinum and featuring a stunning completely unheated and untreated Blue/Purple Star Sapphire from Sri Lanka weighing an absolutely immense 15.70ct. The beautifully made Estate ring contains an array of clean and white round and baguette diamonds of excellent quality totalling 0.44ct. The unheated Star Sapphire is of a superb light to medium blue, changing to a purple under incandescent lighting. As you can see from the first pics, the stone exhibits a very attractive star effect when put under a torchlight - the other pics have been taken under normal lighting conditions. Exceptionally rare and utterly unique! The ring can be supplied with certification from the AGL laboratory in Bangkok confirming no heat. We will seriously consider all close offers, but unrealistic ones will be automatically rejected. Size 6 approx. Needless to say the ring makes a stunning statement when worn and is absolutely certain to appreciate in value as time goes by.