1.77 Ct. Blue Sapphire from Ceylon (Sri Lanka)

This oval shape blue sapphire weighs 1.77 carat, a substantive weight for a Ceylon sapphire that materially affects both visual presence and market value, and it measures 7.62 x 6.29 x 4.32 mm. The cutting style is faceted, executed as a mixed brilliant cut that marries a faceted crown of triangular and kite facets with a pavilion that favors brilliant facet geometry, a combination intended to balance color saturation with light return. At 1.77 carat this sapphire crosses common pricing and rarity thresholds where supply thins and per carat values increase, especially when accompanied by intense color intensity and excellent polish. The Natural Sapphire Company presents this stone as a specimen that is immediately wearable, and also attractive to connoisseurs seeking a premium weight in the classic oval silhouette.

Proportionally this sapphire displays a length to width ratio of approximately 1.21, a dimension that produces a pleasing, balanced oval outline suitable for solitaire rings, three stone settings, and pendants. The measured depth of 4.32 mm yields a depth ratio of approximately 62 percent relative to the mean diameter, a depth that is well within the ideal range for mixed cuts and that supports strong return of light without pushing the tone overly dark. The mixed brilliant faceting emphasizes scintillation across the crown, while the pavilion geometry opens passages for light to reemerge as flashes of white brilliance and colored sparkle, which enhances the perception of saturation. Clarity is graded as slightly included when evaluated at eye level, inclusions that are minor and typical of natural sapphire material, and that do not materially interrupt the gem s visual performance when properly set. The excellent polish and crisp facet junctions indicate careful lapidary work, maximizing both contrast and brilliance while preserving the integrity of the stone s outline and table plane.

Color and origin are central to the gem s character, this sapphire exhibiting intense color intensity and coming from Ceylon, Sri Lanka, a provenance known for lively, well saturated blue tones that can combine brightness with depth. Heat treatment has been applied, a standard and stable enhancement in the trade that optimizes color while remaining permanent under normal wear conditions. The combination of Ceylon origin, intense color intensity, and a weight of 1.77 carat positions this sapphire in a market band where collectors and high end clients look for natural stones that deliver both visual impact and rarity. The presence of natural inclusions can be beneficial from an identification perspective, often supporting origin determination and confirming natural formation, while the heat treatment is disclosed and consistent with industry practices that enhance desirability without compromising durability.

From a practical perspective this 1.77 carat oval sapphire is an excellent candidate for fine jewelry that requires both presence and longevity. Corundum s inherent hardness provides exceptional resistance to wear, and the stone s proportions make it straightforward to design for secure prong settings that maximize light entry, or for open back mountings that allow the intense color to breathe. For clients focused on investment or heirloom quality, the weight is particularly significant, because larger calibrated Ceylon sapphires with intense color and clean presentation become proportionately rarer, and historically they command a premium on a per carat basis. The Natural Sapphire Company can assist with mounting recommendations that protect the stone while showcasing its mixed brilliant faceting and intense color, and we welcome inquiries from clients seeking detailed imagery, matching pairs, or bespoke settings to capitalize on this gem s combination of weight, cut, and origin.