7.36 Ct. Greenish Blue Tourmaline

This specimen from The Natural Gemstone Company is a transparent greenish blue tourmaline, precisely faceted in an emerald cut, weighing 7.36 carats, and measuring 14.61 by 9.67 by 6.33 millimeters. The cutting style is faceted with a step cut geometry, producing broad linear facets and clean planes that emphasize hue and saturation rather than fire. The gem carries a clarity grade described as very slightly included evaluated at eye level, indicating minimal internal characteristics that do not detract from the gem when worn. Color intensity is classified as intense, and the surface polish has been evaluated as excellent, contributing to crisp facet junctions and a refined window into the stone. There has been no enhancement to this tourmaline, preserving the natural expression of color and internal structure, and its origin is recorded as unknown.

From a durability standpoint this tourmaline is well suited for regular wear with appropriate care, owing to the inherent physical properties of the species. Tourmaline has a hardness of approximately seven to seven and a half on the Mohs scale, which provides good resistance to everyday abrasion and maintains polish under normal conditions. The material typically displays good toughness, and this particular stone shows no pronounced natural cleavage planes that would compromise its stability in a well designed mounting. That said the gem is not as hard as corundum or diamond, and it can be scratched by materials of higher hardness. Practical implications are that it performs reliably in settings subjected to daily use, especially when paired with protective design choices, and that ordinary contact with countertops, glass, and metal will be less likely to cause damage than with softer gemstones.

The emerald cut and step faceting of this tourmaline highlight color and clarity in a way that suits frequent wear and close inspection. The large rectangular facets create a serene and elegant visual plane, allowing the intense greenish blue coloration to read evenly across the table, while the very slightly included clarity grade confirms that internal features are minor and do not interrupt the eye appeal at normal viewing distances. Tourmaline is commonly pleochroic, and this stone may exhibit subtle shifts in tone between green and blue as it moves under light, adding depth without compromising performance. Excellent polish enhances facet contrast and ensures smooth facet edges that are less prone to catching or abrasion in a mounting. Because the gemstone has not been treated, its color saturation and light response are natural characteristics, offering predictable behavior under varied lighting conditions.

For use in everyday jewelry this tourmaline combines attractive aesthetics with sensible practicality. For high contact pieces such as rings a protective bezel or a design with substantial bezel wings or a halo is recommended to shield the broad step-cut corners, while securely set prong mounts with four or six well seated prongs are also appropriate where the design allows. Pendants and earrings place less mechanical stress on the stone and are excellent options to showcase the generous table and length of this gem. Cleaning is straightforward, and routine care consists of warm water with a mild detergent and a soft brush, followed by gentle drying with a clean lint free cloth. Avoid exposure to harsh solvents, strong acids, prolonged heat, and sudden thermal shocks. Ultrasonic and steam cleaning are not advised as a blanket recommendation because inclusions can respond unpredictably under strong mechanical or thermal agitation, therefore professional evaluation is suggested before employing those methods. Periodic setting inspections by a qualified jeweler will preserve the stone and the mounting over years of wear. This greenish blue tourmaline from The Natural Gemstone Company marries a concentrated, intense color with robust physical attributes and an unenhanced natural state, making it an excellent candidate for jewelry intended for regular use when fitted and cared for according to these guidelines.