1.60 Ct. Blue Sapphire from Ceylon (Sri Lanka)

This 1.60 carat oval blue sapphire from Ceylon, Sri Lanka, presents precise proportions and refined cutting that will please technically minded buyers, with dimensions of 8.39 x 6.09 x 3.75 mm, transparent body, and a faceted mixed brilliant cut crafted to balance color saturation and light return. The mixed brilliant design combines a faceted crown geometry with a modified pavilion to enhance scintillation while preserving face up depth of hue, and the oval outline yields an elongation ratio that emphasizes length without sacrificing brilliance. Clarity is graded as eye clean at standard viewing distance, indicating that no inclusions interfere with the stone surface or facet junctions when examined with the unaided eye, and polish is excellent with crisp facet junctions and consistent symmetry that support strong, even reflections across the table and crown facets. Color intensity is described as intense, with a vivid blue saturation and slight deepening toward the pavilion that benefits from the cutter s decision to retain weight while optimizing optical performance. The sapphire has been heat treated, a stable enhancement widely accepted in the trade that deepens and homogenizes blue saturation while maintaining natural origin characteristics, which in this instance are traceable to classic Ceylon material known for lively, velvety blues.

From a lapidary and setting engineering perspective, the mixed brilliant cut and the stone s measured depth of 3.75 mm create specific mounting opportunities and constraints that influence custom jewelry choices. The pavilion depth and overall depth profile deliver a favorable balance between face up brightness and color saturation, so open back prong settings will maximize light entry and perceived brilliance, while a carefully designed bezel can protect the girdle and provide a low profile for everyday wear without compromising color. Because the stone is eye clean, open bezel and claw prong options become highly attractive, as the absence of readily visible inclusions allows cleaning and accent diamonds to enhance perceived size and sparkle. The oval shape benefits from end prongs or tailored V prongs for better protection of the pointed terminations, and the slightly elongated ratio is well suited to halo treatments that create an optical increase in size, to three stone designs that emphasize linearity, or to east west orientations for contemporary silhouettes. The excellent polish and symmetry ensure predictable light performance when the gem is oriented in a ring, pendant, or earring, and the heat treatment stability means standard jeweler s soldering and setting processes can be employed without risk to the stone s color integrity.

At The Natural Sapphire Company we recommend several bespoke settings that exploit this sapphire s technical strengths, depending on the intended wear profile and aesthetic. For high visibility and maximum brilliance consider a four or six prong solitaire in platinum or 18 karat white gold paired with a delicate diamond halo to increase apparent diameter and to introduce contrasting dispersion, or opt for 18 karat yellow gold to warm the blue and create a classic, regal contrast that is characteristic of Ceylon material. A precision bezel with internal polishing for a low profile daily wear ring can secure the girdle while preserving the stone s face up color, and a cathedral mount or tapered split shank will lift the crown into additional light without exposing the pavilion to impact. For pendant applications a hidden bail can maintain a clean face and allow the sapphire to sit flush, while for bespoke earrings the sapphire s color and cut make an excellent single focal piece when paired with smaller accent stones in a three stone or cluster layout. For any custom design our design team can advise on prong seat geometry, pavilion clearance, and bezel wall thickness to preserve the sapphire s optical performance and to ensure a secure, durable setting. Contact The Natural Sapphire Company to request CAD renderings, metal and accent stone options, and secure mounting recommendations, and to schedule a consultation to translate this technically refined Ceylon sapphire into a tailored piece of wearable art.