A vivid orange sapphire cut to true brilliant-cut precision — the kind of exacting, symmetrical faceting more commonly seen on diamonds than colored stones, sometimes called a "Russian cut" for the mathematical precision of its angles. At 1.38 carats, flawless, the cut sends light straight back through the crown with none of the softness a standard mixed cut allows, so the vivid orange reads with real fire and sharp, defined scintillation. IGI confirms natural corundum with indications of heating, standard practice for this color category. Precision cutting like this is rare in colored stones because it sacrifices more rough than a standard cut — the result is a sapphire that performs closer to a diamond than to typical orange sapphire.