1.70 Ct. Sky Blue Topaz from Brazil

This transparent cushion shape sky blue topaz weighs 1.70 carat and measures 7.09 by 7.02 by 4.37 millimeters, it is expertly faceted in a mixed brilliant cut that balances scintillation and table brightness, and it presents a light color intensity with excellent polish. The mixed brilliant cut integrates a brilliant style facet arrangement on the pavilion with a modified crown that preserves the cushion outline while maximizing return of light, this configuration is ideal for topaz because it enhances the stone s natural luster without sacrificing face up size. The gem s clarity is graded as very slightly included when evaluated at eye level, an important characteristic that supports visual purity while remaining consistent with the natural formation of topaz crystals. The stone has been enhanced by irradiation, a widely accepted and stable treatment in the trade that produces the desirable sky blue tone, and the topaz originates from Brazil, a source known for consistent crystal quality and responsible mining practices. At The Natural Gemstone Company we present this gem with full disclosure of these details so that buyers can assess both the aesthetic appeal and the technical attributes that contribute to its market value.

From a grading perspective this topaz demonstrates attributes that educated buyers prioritize, starting with a solid combination of weight, proportions, and clarity. The 1.70 carat weight in a cushion outline is large enough to command presence when set in a ring or pendant, while the dimensions produce a pleasing table and depth ratio for optimal brilliance, the mixed brilliant cutting style further enhances light performance, creating lively facets and attractive sparkle under both artificial and natural lighting. The clarity grade of very slightly included evaluated at eye level indicates that inclusions are minimal and not readily visible to the naked eye, a valuable trait for collectors who seek clean appearance without paying a premium for flawless material. The excellent polish speaks to skilled lapidary work, which reduces surface diffusion of light and improves perceptible brightness, this is particularly relevant when assessing value because polish quality directly impacts perceived color and fire. The irradiated enhancement that produces the sky blue color is a standard, controlled treatment, it is stable under normal wear and does not compromise the intrinsic hardness of topaz, and buyers should note that treated topaz is both common and accepted in the market, with the combination of treatment and Brazilian origin offering a reliable balance of beauty and value.

This sky blue topaz is exceptionally versatile, it transitions effortlessly from casual daytime looks to formal evening wear, and it adapts well to a range of jewelry settings and metal choices. In relaxed settings the light blue tone reads as fresh and modern when set in a minimalist bezel or a delicate prong setting in sterling silver or 14 karat yellow gold, for evening or formal attire the cushion shape and mixed brilliant cut produce sufficient scintillation to pair elegantly with white gold or platinum mountings and complementary accent stones. Practical considerations for wearability further enhance its appeal to educated buyers, topaz has a Mohs hardness of 8 which affords good resistance to everyday abrasion when mounted thoughtfully, and the very slightly included clarity reduces the risk of weak planes compared to heavily included material. Care recommendations include avoiding prolonged exposure to harsh chemicals and extreme heat, gentle cleaning with warm water and mild detergent is typically sufficient, and The Natural Gemstone Company is available to advise on safe cleaning methods and on setting styles that protect the girdle and corners of a cushion cut.

For the buyer who values transparency in sourcing and technical information this cushion sky blue topaz represents a compelling option, its clear provenance from Brazil coupled with a disclosed irradiated enhancement allows appraisal with confidence, and the combination of size, mixed brilliant cut, very slightly included clarity, and excellent polish produces a gem that looks larger than its weight alone might suggest, this is a meaningful advantage for both jewelry designers and end customers. If you would like additional documentation, high resolution images, or assistance in selecting a setting that will maximize the stone s optical performance, the gem specialists at The Natural Gemstone Company are ready to provide further guidance and personalized recommendations.