Sapphire - 6.77 ct - Lotus Gemology - No Heat Blue - Africa

This sapphire weighing 6.77 carats comes from Africa and is notable for its 'no heat' treatment status, as certified by Lotus Gemology. Heating is a common treatment applied to sapphires to enhance color and clarity, so naturally untreated stones are rarer and particularly prized among gemstone collectors. African sapphires are gaining recognition for their vibrant hues and unique characteristics. Sapphires belong to the corundum family, known for their excellent hardness of 9 on the Mohs scale, making them durable and suitable for various types of jewelry. The presence of 'no heat' treatment adds value by confirming the stone's natural origin without enhancement, appealing to buyers seeking originality and natural beauty.