0.37 Ct. Blue Sapphire from Ceylon (Sri Lanka)

This transparent 0.37 carat oval blue sapphire measures 5.39 x 3.83 x 1.95 mm, and presents a finely proportioned silhouette that balances table size with pavilion depth, a characteristic well suited to a variety of settings. The gem has been fashioned with a mixed brilliant cut, combining a faceted crown that enhances scintillation with a carefully faceted pavilion that supports light return, resulting in a lively display for its size. Clarity has been graded as slightly included at eye level, indicating small natural features that are consistent with its origin, Ceylon Sri Lanka, and that do not materially detract from the gem's overall appearance when set. Color is described as intense, a saturated blue that retains depth across the face of the stone and offers a strong visual presence despite the modest carat weight, and the surface finish has been executed to an excellent polish, producing crisp facet junctions and a clean face up presentation. The sapphire has received routine heat treatment, a stable and widely accepted enhancement that improves color and clarity while preserving the gem's structural integrity.

Optical performance is driven by the interaction of the mixed brilliant faceting and the stone's inherent color saturation, the cut permitting flashes of lighter blue at the crown that contrast with deeper tones within the table, creating a dynamic visual effect under varying light conditions. The slightly included clarity contributes to the gem's natural character, and the inclusions are typically minute and positioned so as to be inconspicuous in most mounting styles, particularly when set with complementary metalwork. Corundum's inherent hardness, which ranks nine on the Mohs scale, makes this sapphire well suited to daily wear in rings, pendants, or earrings, and the combination of excellent polish and stable heat enhancement supports long term wear without significant loss of sheen. The gem's Ceylon provenance is notable for its historical association with vibrant, velvety blues, and this example reflects that legacy while presenting a color and brilliance that are both lively and refined.

Over the years this sapphire's natural beauty will continue to captivate through a combination of enduring color stability, robust physical properties, and thoughtful cutting and finishing, the intense blue will remain visually engaging as light plays across its facets, and the excellent polish will sustain surface luster through routine care. When incorporated into bespoke or classic designs, the stone's proportion and mixed brilliant faceting will allow it to complement surrounding elements rather than compete, preserving a timeless aesthetic that adapts to changing style preferences. Proper maintenance is straightforward, regular cleaning with warm soapy water and a soft brush will refresh the surface, and occasional professional inspection of the setting will safeguard against mechanical loss, while standard handling precautions will minimize exposure to harsh chemicals and extreme thermal shock. The Natural Sapphire Company provides accurate, detailed descriptions and responsible sourcing information, and this Ceylon sapphire exemplifies the qualities collectors and designers seek, combining natural origin, careful cutting, and reliable treatment to deliver a gem whose appeal will remain compelling for years to come.