16.88 Ct. Brown Smoky Quartz from Brazil

This offering from The Natural Gemstone Company is a single, transparent smoky quartz of 16.88 carats, presented in a marquise outline with dimensions 25.21 by 15.03 by 10.19 millimeters. The gemstone is faceted in a mixed brilliant style, combining precise pavilion facets with a well proportioned crown to optimize light return. Clarity is graded as eye clean at standard viewing distance, indicating no visible inclusions to the unaided eye, and the surface displays an excellent polish that supports crisp facet junctions and consistent light performance. Color is described as intense brown, exhibiting even saturation across the table and facets, and no enhancements have been applied. The material originates from Brazil, a provenance known for producing natural smoky quartz of stable color and good crystallographic quality.

The mixed brilliant cut employed in this specimen is calibrated to enhance scintillation while retaining a sophisticated, elongated silhouette inherent to the marquise shape. The combination of precise facet angles and excellent polish yields balanced brilliance and a controlled spread of light, which is particularly effective in a stone of this size. At 16.88 carats and with the noted proportions, the stone presents substantial visual presence without excess depth, allowing it to sit well in a variety of mounting styles. The intense brown hue reads as warm and versatile, making the gem suitable for both classic and contemporary design languages where controlled brilliance and tonal consistency are priorities.

Regarding durability, smoky quartz is a member of the quartz family and rates approximately seven on the Mohs hardness scale, providing reliable resistance to abrasion in everyday environments. Unlike minerals with pronounced cleavage, quartz displays no true cleavage planes, and fractures tend to be conchoidal, which contributes to predictable behavior under normal wear. That said, the marquise silhouette creates pointed terminations that are inherently more susceptible to chipping if subjected to direct impact. For this reason, protective setting strategies are recommended for daily wear, such as secure prong work with reinforced points, partial bezels over the tips, or raised but shielded bezel designs. The excellent polish and absence of enhancements further reduce the need for special handling, and the material is generally stable to routine cleaning methods.

Care and suitability notes are straightforward. Routine cleaning with warm water, a mild detergent, and a soft brush is appropriate, and because this stone is natural and unenhanced, ultrasonic and steam cleaning are typically acceptable, provided there are no preexisting fractures. Avoid sudden thermal shock and aggressive household chemicals, and consider protective mountings for rings or bracelets that are exposed to frequent contact. In terms of jewelry application, this 16.88 carat marquise smoky quartz is well suited to centerpieces in pendants and rings, elegant statement earrings, and refined cuff or bracelet settings, with metal choices including yellow and rose gold to emphasize warmth, or white gold and platinum for a cooler, contemporary contrast. The piece offered by The Natural Gemstone Company combines documented provenance, precise cutting, and practical durability, making it a technically sound choice for designs intended for regular wear.