1.24 Ct. Blue Sapphire from Tanzania

This transparent 1.24 carat cushion shape blue sapphire measures 7.01 x 5.28 x 3.81 mm, it is cut to a mixed brilliant geometry, it carries a clarity grade of slightly included when evaluated at eye level, it displays intense color intensity, it is of Tanzanian origin, it has no enhancement, and it is finished to an excellent polish. The mixed brilliant configuration on a cushion outline combines a brilliant style pavilion with a modified crown architecture, the pavilion facets are optimized to return light to the eye while the crown facet arrangement controls the windowing and face up color, precise girdle symmetry and tight facet junctions show the work of an experienced cutter, the excellent polish creates crisp facet mirrors and minimizes light diffusion so that the sapphire projects strong internal reflections and sharp facet contrast. At 1.24 carat and with these dimensions the stone sits in a sweet spot where facet proportions deliver both saturated color and lively scintillation, the slight inclusions are internal and well positioned so they do not impede the primary light pathways, rather they can add subtle character without sacrificing transparency, this level of craftsmanship is consistent with the standards of The Natural Sapphire Company.

Under different lighting environments this sapphire exhibits predictable and desirable behavior, in strong daylight the intense color intensity reads as a deep, saturated blue with a cool, slightly violet leaning undertone, daylight maximizes the stone face up color and reveals deep tone in the table window while the mixed brilliant facets create crisp white and colored flashes. Under warm incandescent sources the stone will appear marginally warmer and richer, the blue remains dominant but the crown facets throw more orange white scintillation, this increases perceived depth and warmth for evening wear. Under modern neutral LED and compact fluorescent lighting the mixed facet architecture balances color and brilliance, LEDs emphasize crisp scintillation and make the intense blue appear vivid and electric, under focused spotlight or jewelry display lighting the pavilion brilliance and polished facet planes produce strong contrast, pinpoint flashes and internal sparkle, these conditions highlight the cutter s intent to maximize light return. For settings I recommend an open prong or low bezel design to allow light ingress from the pavilion and to preserve the dynamic performance, customers who appreciate technical cutting and natural, unenhanced material will value the balance of color, clarity and polish present in this sapphire from The Natural Sapphire Company.