Natural Blue Sapphire - 12.29 ct - Lotus Gemology Offered is a substantial 12.29 carat natural blue sapphire, accompanied by a Lotus Gemology Report. The sapphire is described by Lotus Gemology as, natural sapphire, basalt-related, with a blue color, low saturation and a deep tone. It is transparent and fashioned in an oval faceted cut, combining a brilliant-style crown with a step-cut pavilion. There is no indications of heating/treatment. The stone measures approximately 14.10 x 12.51mm, giving it a substantial face-up presence while retaining an elegant oval outline. Please note: The appearance of the sapphire’s color may vary depending on lighting conditions, photography, and the viewer’s screen. All gemstone characteristics stated above are taken directly from the accompanying Lotus Gemology Report.