3.05 ct Blue Oval Sapphire
Excellent oval shape sapphire in vibrant blue colour. This beautiful stone would make a beautiful engagement ring, especially if paired with 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.