4.79 Ct. Lapis from Afghanistan

This piece is a 4.79 carat cushion shape blue lapis, presented in a tablet cut with dimensions of 14.19 x 12.17 x 2.68 mm, exhibiting an opaque body and an excellent polish. The tablet cut here has been executed to maximize surface area while maintaining a low profile thickness, the flat to slightly domed top plane providing an even visual field that emphasizes the stone s natural ultramarine hue. Because the material is opaque, traditional color intensity grading is not applicable, however the visual appearance is a deep, evenly distributed blue consistent with high grade Afghan lapis, with subtle natural matrix and pyrite textures visible under magnification, indicating authentic lazurite dominated composition. No enhancement has been applied to this specimen, the surface finish and color deriving solely from careful lapidary selection and the inherent quality of the rough from Afghanistan. The cushion outline is softly rounded for classical proportion, while the tablet execution creates a refined, contemporary silhouette suited to both modern and traditional settings.

From a durability perspective this lapis balances aesthetic refinement with practical resilience for daily wear, when appropriate mounting choices and basic care are observed. Lapis lazuli typically registers approximately 5 to 5.5 on the Mohs hardness scale, which indicates moderate resistance to abrasion, and it displays no true cleavage planes, though the material can be brittle where intergrowths of calcite and pyrite occur. The tablet cut s 2.68 mm thickness is intentionally shallow, reducing leverage at the edges and lowering the risk of edge chipping during normal wear, provided the stone is secured in a protective bezel or low profile setting rather than exposed prong tips. The excellent polish reduces microabrasion during contact, because a smoother surface is less susceptible to surface scratching from dust and softer materials. For daily wear situations we recommend bezel mounting, flush inlay, or recessed channel settings for rings and bracelets, while pendants and earrings demand fewer mechanical protections but still benefit from a bezel to protect the edge. Avoid ultrasonic cleaning and steam exposure, avoid strong acids and household chemicals, and remove pieces for tasks that risk heavy impact or prolonged moisture exposure, all measures that will preserve polish and prevent matrix loosening over extended use.

The lapidary craftsmanship evident in this stone reflects deliberate decisions to optimize both appearance and longevity, techniques that complement contemporary jewelry engineering and practical daily use. The tablet cut is achieved by precise trimming and flattening of the pavilion, careful edge rounding to eliminate stress risers, and progressive polishing through fine abrasives to produce the uniform high gloss that you see, methods that minimize microfractures and improve wear resistance. Because no enhancement has been used, the lapis retains its original structural integrity without stabilized resins or dyes that can degrade under repeated abrasion or chemical exposure, and the Afghan provenance from established deposits is a known indicator of deep chromatic saturation in natural lapis specimens. At The Natural Gemstone Company we can advise on ideal mounting methods for this 14.19 x 12.17 x 2.68 mm cushion tablet, recommending bezel thickness and seat depth to accommodate the 4.79 carat weight while maintaining flush security and minimizing exposure to mechanical contact. For customers seeking a daily wear piece with artisanal quality and geological authenticity, this untreated Afghan lapis offers a balance of classical color, considered cutting, and practical durability when set and maintained according to lapis specific care guidelines, and our team is available to provide mounting recommendations and certification details to support long term satisfaction.