0.72 Ct. Blue Sapphire from Ceylon (Sri Lanka)

This sapphire is a transparent, well proportioned round weighing 0.72 carat, and measuring 5.59 x 5.56 x 3.01 millimeters. It is faceted with a mixed brilliant cut that balances table flash with lively facet return, and it displays a vivid blue color intensity that is immediately apparent in direct lighting and in softer ambient conditions. Clarity is graded as slightly included when evaluated at eye level, and those natural characteristics are consistent with its Ceylon origin, contributing to the gem character without obscuring brilliance. The polish is excellent, resulting in clean facet junctions and crisp reflections across the table and crown facets. This sapphire has been heat treated, a common and stable enhancement for material from Sri Lanka, and the treatment has been applied to refine tone and saturation while preserving the gem natural structure. The overall presentation is one of deep, saturated blue, a pleasing balance of sparkle and color depth, and a compact profile that adapts well to a variety of jewelry formats. The Natural Sapphire Company reference confirms the documented origin and treatment history, and supports a clear chain of custody for the stone.

In a custom setting this sapphire pairs effectively with colorless gemstones to emphasize its vivid blue, or with select colored stones to create intentional contrast. A halo of small brilliant cut diamonds will enhance perceived size and lend crisp white light that lifts the blue, while tapered baguette side stones will create a linear, architectural extension that keeps focus on the center. For a warmer palette, small rose or champagne diamonds set in yellow gold will provide a subtle warmth that makes the blue appear more royal and saturated. For a bolder contrast, ruby accents will introduce a classic red and blue dialogue, useful in vintage inspired designs. Emeralds may be used sparingly as side accents when a cool colored suite is desired, and pink sapphires in pavé will add a contemporary, feminine counterpoint. Metal selection is decisive, with platinum and 18 karat white gold offering the most neutral backdrop for true color fidelity, while 18 karat yellow gold brings a traditional richness, and 18 karat rose gold imparts a softer, more romantic warmth.

Design approaches that showcase the optical strengths of the mixed brilliant cut and the vivid color include a low profile four or six prong solitaire for everyday wear, a cathedral solitaire with a gentle rise to emphasize table reflections, and a delicate diamond halo for a refined, high impact look. A three stone arrangement with tapered baguettes in a platinum mounting will read as modern and balanced, while a bezel set pendant in yellow gold with a slim diamond halo will create a striking contrast between metal tone and sapphire saturation. For earrings a pair of small round diamonds set above matching blue sapphires produces an elegant drop composition that reads both classic and contemporary. When commissioning a custom piece it is practical to view metal and gemstone samples side by side to verify the interaction of blue under different lighting, and to allow for setting adjustments that accommodate the slightly included clarity grade without concealing the facets that contribute to brilliance. Routine inspection of the mounting is recommended, and cleaning with mild soap and water and a soft brush will maintain surface luster. The heat treatment applied to this Sri Lankan sapphire is stable under normal wear, and The Natural Sapphire Company documentation will accompany the stone to ensure clarity about origin and enhancement for long term care and valuation.