1.52 Ct. Bluish Green Sapphire from Ceylon (Sri Lanka)

This oval sapphire weighs 1.52 carats, with dimensions 8.02 by 5.99 by 3.38 millimeters, a length to width ratio of 1.34, and a depth of approximately 48.3 percent, attributes that together define a well balanced pavilion and crown silhouette for an oval of this profile. The gem exhibits a bluish green hue with a dark color intensity, presented as transparent to the eye, and carries a clarity grade described as very very slightly included, evaluated at eye level, effectively eye clean in face up observation. Cut as a mixed brilliant, the stone combines a brilliant style crown with a mixed pavilion, the design intent being to maximize internal light return while preserving saturation in the stone body, and the finish is executed to an excellent polish, with crisp facet junctions and a finely controlled girdle. Origin is Ceylon, Sri Lanka, and there is no enhancement, an untreated status that materially increases both rarity and appeal in the market for colored gemstones.

The mixed brilliant cut on this piece is tuned to the sapphire's natural optical behavior, with crown facets calibrated to present scintillation while allowing the stone to breathe color, and the pavilion arrangement deep enough to avoid face up washout, a balance that is particularly important in stones with dark color intensity. The oval shape and the specific 1.34 ratio produce an elegant outline that reduces prominence of windowing, and the moderate depth at near 48 percent supports strong light return across viewing angles. In practical terms, the facet architecture yields small, lively flashlets from the crown, and broader flashes from the pavilion, creating a mix of pinpoint scintillation and larger color flashes that emphasize the bluish green character without fragmenting it. Pleochroic tendencies common to corundum are present in a controlled way here, with the stone showing slightly different proportions of blue and green as it is tilted, a property that skilled cutters exploit to produce a dynamic face up color. The excellent polish ensures minimal surface disturbance to the light path, preserving contrast between facets and enabling the gem to exhibit its full optical signature in jewelry.

Rarity in this example arises from the confluence of size, hue, and untreated status, a combination seldom encountered in the trade. Bluish green sapphires are less frequently found in clean, untreated material at weights above one carat, and Ceylon origin material with the present attributes is particularly desirable to collectors and designers who value provenance and natural color. Compared to similar options that may require heat treatment or that present as smaller material with similar hue, this 1.52 carat example stands out as an investment quality stone, offering both immediate wearable beauty and long term market interest. For mounting considerations the stone adapts well to a variety of settings, from a refined solitaire that emphasizes the gem body color, to halo or three stone designs where accent diamonds can provide contrast and enhance perceived depth. Warm metals such as yellow gold will alter the face up effect, highlighting green undertones, while white metals will present the blue aspect more purely, a useful consideration when specifying bespoke settings. The Natural Sapphire Company is prepared to provide detailed imagery, provenance documentation, and bespoke design consultation, ensuring that this rare untreated Ceylon bluish green sapphire can be showcased to its fullest potential.