Color-change sapphires are quite rare, and this is a beauty. The stone changes color from blue to purple-pink depending on the light. We have the Certificate for this stone, stating that it is a natural, untreated color-change sapphire. It is simply set in a diamond and platinum mounting, which shows off the stone beautifully. This would be a wonderful engagement ring, as sapphires symbolize purity and fidelity. 8.65 carats.