3.40 Carat Blue SRI LANKAN Cushion Sapphire CD

This is a 3.40 carat blue sapphire of Sri Lankan origin in a cushion cut, offered as a loose stone. The stone has been heated, a standard treatment for sapphires that improves color saturation and clarity. No certification details were provided in the listing information. The cushion cut typically yields good color display and is a popular choice for sapphire engagement ring settings.