10.13 ct Blue Cushion Sapphire
Beautiful cushion shape sapphire in bright blue colour. Perfect gemstone for a statement sapphire ring or pendant, especially if paired with some sparkly diamonds.
More care is needed with treated stones.
Sapphires can be treated to improve colour by a process called diffusion. Older stones treated in this way may only have treatment near the surface, so if you become aware that you or a customer has a stone treated in this way avoid repolishing.