10.10 Ct. Blue Sapphire from Ceylon (Sri Lanka)

This exceptional transparent blue sapphire from Ceylon is a rare and significant example of classic Sri Lankan gem material, presented by The Natural Sapphire Company. Weighing 10.10 carat with dimensions of 11.76 x 10.80 x 8.51 mm, this cushion shape stone has been fashioned with a mixed brilliant cut to balance depth and scintillation. The combination of a lively crown with well calibrated pavilion facets produces a powerful return of light, yielding both sparkle and a sense of velvety depth. The color intensity is classified as intense, exhibiting a vivid blue that remains evenly distributed throughout the body of the gem. Clarity has been evaluated at eye level as very slightly included, indicating that the stone reads as clean to the naked eye while retaining minor internal characteristics that are typical and acceptable in natural corundum of this size. The finish is described as excellent polish, which enhances both surface brilliance and visual clarity. Importantly this sapphire has no enhancement, which for educated buyers represents verifiable natural color and structure without heat treatment or other modifications, a quality that generally commands a premium in the marketplace.

From a gemological perspective the combination of origin, natural color, clarity, and cut make this specimen especially attractive to collectors and connoisseurs. Sri Lankan sapphires are renowned for their bright and lively blue tones with excellent transparency, and an unenhanced stone with intense saturation from Ceylon is of notable interest because it preserves the stone in its original state. The very slightly included grade evaluated at eye level signals that the internal features do not significantly interfere with light performance or visual appeal, while also affirming the natural character of the gem. The mixed brilliant cut is an intelligent choice for a cushion outline of this size, because it marries the pavilion facet geometry that promotes depth and scintillation with a faceting scheme on the crown that amplifies surface fire. Excellent polish ensures that light is transmitted and reflected cleanly across each facet junction, increasing the apparent brightness and aiding color perception under varied lighting conditions. For buyers who value documented provenance and transparent grading, the combination of unheated origin information and meticulous cutting provides both aesthetic pleasure and technical assurance.

Durability is a central consideration for buyers who intend to wear this sapphire daily, and in that context this gem is exceptionally well suited to everyday use. As a variety of corundum, sapphire rates nine on the Mohs hardness scale, offering outstanding resistance to abrasion and surface wear compared with most other gem materials. The toughness of corundum is favorable as well, making the stone resilient against impacts that would damage softer gems, and the very slightly included clarity suggests no significant structural weaknesses at the scale of normal wear. For daily settings, classic prong or low bezel mounts work well, with a protective bezel offering additional security for active lifestyles while prongs can maximize light entry to enhance brilliance. Routine care is straightforward, warm soapy water and a soft brush will safely remove oils and debris, and professional ultrasonic or steam cleaning can be considered if a qualified jeweler confirms the stone has no fractures or filled features. At The Natural Sapphire Company we can advise on mounting options that preserve the gem while showcasing its color and size, and we provide documentation that supports both provenance and grading. For an educated buyer seeking a substantial, natural, and durable Ceylon sapphire that will perform beautifully in daily jewelry, this 10.10 carat cushion is a compelling choice, offering both enduring beauty and long term value.