8.35 Ct. Cabochon Turquoise from USA

This specimen is an 8.35 carat opaque round turquoise, presented as a domed cabochon with dimensions of 13.92 by 14.06 by 5.65 millimeters, offered by The Natural Gemstone Company. The cutting protocol favors a classical high dome profile, producing a pronounced curvature that measures approximately 40 percent of the average diameter, a proportion that maximizes surface color saturation while maintaining stability for mounting. The profile is essentially symmetrical, with a dimensional variance of 0.14 millimeters between the two measured diameters, an indicator of precise preform orientation and controlled material removal during shaping. The cabochon cut eliminates angular facets in favor of a continuous convex surface, and the stone demonstrates crisp edge rounding and a well centered apex, attributes that facilitate consistent light return across the dome and reduce stress concentration points when set in bezel or flush mountings.

Color is graded as medium intensity, presenting a uniform sky to robin egg blue with a neutral to slightly cool hue balance, and an even distribution across the entire surface. The material appears matrix free to the unaided eye, showing minimal to no visible host rock veining or spiderweb patterning, which is uncommon in many turquoise sources and desirable for designers seeking clean color fields. The polish is excellent, exhibiting a high gloss, subvitreous to slightly waxy luster that indicates meticulous lapidary finishing and effective surface leveling. No enhancement is present, the stone is natural and untreated, and provenance is documented as United States, a factor that often correlates with stable color qualities and minimal dye or stabilization practices. Under 10 times loupe scrutiny the surface shows only extremely minor surface texture consistent with natural microcrystalline structure, rather than treatment related residues or coating artifacts, supporting the untreated status reported.

From a craftsmanship and application perspective this cabochon is well suited to fine jewelry where protection and presentation are equally important. The substantial dome height lends itself to solitaire rings and pendant designs that emphasize color depth, while the clean round outline supports bezel settings that will protect the girdle and maintain the integrity of the stone through daily wear. Given turquoise typical hardness in the 5 to 6 range on the Mohs scale, it is advisable to employ protective settings and to avoid exposure to acids, harsh solvents, and extreme heat to preserve the polish and natural surface. The piece will appeal to collectors and designers who prioritize untreated American origin material, precise lapidary execution, and consistent color fields. The Natural Gemstone Company can provide additional documentation on origin and handling recommendations upon request, and we can advise on bespoke mounting approaches that exploit the cabochon geometry while safeguarding the stone for long term wear and display.