3.70 Ct.Tw.Total Carat Weight Blue Sapphire Pair from Ceylon (Sri Lanka)

This matched pair of Ceylon blue sapphires from The Natural Sapphire Company presents a tightly controlled combination of optical properties and lapidary precision, calibrated for high end jewelry use. The stones weigh 1.91 carats and 1.79 carats respectively, and their oval dimensions measure 8.93 by 6.28 by 4.18 millimeters and 9.06 by 6.24 by 3.99 millimeters. Both are fashioned in a mixed brilliant cut, a choice that places a brilliant facet arrangement on the crown above a more structured pavilion, a configuration that yields both lively scintillation and efficient color saturation. Depth percentages calculated from the provided dimensions fall within a favorable window for ovals, approximately fifty five percent for the smaller stone and about fifty two percent for the larger stone, which supports robust light return without compromising face up spread. Clarity is graded as very very slightly included at eye level, indicating only minor internal features that do not materially interrupt brilliance or transparency when mounted, and polishing quality is rated excellent, so facet junctions are crisp and surfaces present maximum reflectivity. The sapphires have been heat treated, a stable and industry standard enhancement to optimize tone and saturation, and their Sri Lankan origin contributes the classic lively, vivid blue associated with Ceylon material.

From a design and setting perspective the pair is exceptionally versatile, suited to matched stud earrings, asymmetric or mirrored drop earrings, paired ring shoulders, and complementary roles in pendant and cufflink designs. Because the two stones are closely matched in hue and saturation they can be set as a symmetrical stud pair using low profile four or six prong settings to maximize apparent size and light exposure, or in bezel settings when durability and a clean architectural aesthetic is desired. The mixed brilliant cut enhances broad flashes of color under direct light while maintaining pinpoint scintillation in motion, so halo settings with small white diamonds or sapphires will increase apparent diameter and emphasize the stones central color without masking the mixed cut pavilion pattern. For more modern executions the pair works well in east west orientation or north south orientation within oval open backs, and the slight difference in pavilion depth between the two pieces is small enough to be absorbed by crown height adjustments in the mounting without altering overall balance.

Practical mounting guidance centers on preserving the face up color and optimizing light return while accommodating daily wear. The excellent polish and eye level clarity support open back or semi open back settings when maximum depth of color is desired, particularly in yellow or rose gold mounts which will warm the blue tone and create a richer appearance. White metals will present a cooler, more electric blue, which can be desirable for contrast in halo or three stone ring compositions. Given the mixed brilliant cutting style, prong settings that expose the crown facets will yield the most dynamic scintillation, whereas full bezel settings will protect the girdle and extend wearability but reduce perceived dispersion, so thickness of the bezel should be minimized when optical performance is the priority. For pair use as engagement companion stones or for high end earrings, slight adjustments to seat angle and prong height will reconcile the small variance in table and pavilion depth, ensuring the pair reads as a unified color match on the finger or in the ear. The Natural Sapphire Company offers these sapphires with full technical documentation on dimensions, treatments, and origin to assist the bench in producing final settings that maximize the stones inherent optical virtues.