2.51 Ct. Blue Sapphire from Ceylon (Sri Lanka)

This transparent 2.51 carat round blue sapphire, sourced from Ceylon Sri Lanka and offered by The Natural Sapphire Company, is a technically impressive material for bespoke jewelry. The stone measures 8.69 by 8.56 by 4.30 mm, producing an average girdle diameter of 8.63 mm and a depth of 4.30 mm, which equates to a depth ratio of approximately 49.9 percent. The mixed brilliant cut combines a brilliant facet arrangement on the crown with a modified pavilion design, engineered to balance scintillation and color saturation. The facet junctions display precise symmetry, and the excellent polish enhances facet transparency and light transmission. Clarity has been graded as eye clean at typical viewing distances, ensuring the face up presentation remains unencumbered by inclusions. The color intensity is classified as intense, yielding a vivid blue that benefits from Ceylon provenance, known for lively cornflower to slightly violet blue tones. No enhancement has been applied, so the color and clarity are entirely natural, which is a critical consideration for collectors and clients who specify untreated material for high integrity commissions.

From a custom jewelry perspective this sapphire is exceptionally versatile due to its round outline and near 2.5 carat weight. The nearly equal girdle diameters allow predictable setting geometry in four or six prong heads, bezel settings, and tension designs, and the moderate depth makes it suitable for low profile rings or fine halo mounts that emphasize face up color without excessive elevation above the mounting. The mixed brilliant facet set will respond well to open back settings that allow light ingress, and the eye clean clarity supports both solitaire presentations and multi stone layouts such as three stone rings or asymmetric pendants. For designers concerned with durability the round shape minimizes stress points and the dimensions fit common ring sizes with minimal reworking of the mounting. At The Natural Sapphire Company we can advise on prong height, bezel wall thickness, and metal selection to optimize optical performance and wearability, ensuring the sapphire achieves maximum presence in engagement rings, statement pendants, or tailored heirloom pieces.