5.03 Ct. Greenish Blue Sapphire from Ceylon (Sri Lanka)

This 5.03 carat round greenish blue sapphire presents as a compelling choice for collectors and connoisseurs who prioritize weight, color saturation, and clean appearance. The stone measures 10.68 by 10.62 by 5.61 mm, a proportion that supports a substantial face up presentation for its carat weight, and it has been cut in a mixed brilliant style to balance table flash with pavilion return. The transparency is described as transparent with a dark color intensity that delivers a deep, richly saturated greenish blue tone on the face, while the excellent polish ensures strong light return and a refined surface finish. Clarity has been graded as eye clean when evaluated at eye level, meaning no inclusions are apparent to the unaided eye which enhances visual impact and suitability for fine jewelry. The sapphire has undergone standard heat treatment, a widely accepted enhancement that stabilizes and intensifies color, and its origin is Ceylon, Sri Lanka, a provenance respected for producing velvety, vivid sapphires that are highly regarded in the trade.

From a technical perspective, the 5.03 carat weight is significant because it crosses a weight threshold where per carat price often increases due to rarity, especially in stones that combine notable size with eye clean clarity and deep saturation. The mixed brilliant cut in a round outline preserves carat weight while optimizing brilliance, which is particularly important for darker sapphires where cut and polish influence perceived color and sparkle. The eye clean grade reduces the need for protective settings, and the excellent polish minimizes light loss, both of which are desirable traits for a long lasting high quality gem. At The Natural Sapphire Company we present this sapphire with transparent disclosure of its treatment and origin, offering an informed buyer the relevant facts to assess value. For those seeking a premium, large, serviceable sapphire from a classic Ceylon source, this 5.03 carat greenish blue round is a strong candidate, combining notable weight, solid dimensions, professional cutting and polishing, and the visual purity that educated buyers look for when investing in natural colored gemstones.