10.20 Ct. Tanzanite from Tanzania

This superb 10.20 carat emerald cut tanzanite from Tanzania is a rare example of size and refinement that outshines many alternatives on the market, with dimensions of 15.43 x 9.01 x 8.17 mm that make it a true centerpiece for any collection. Its violetish blue hue carries an intense color intensity that reads richer and more saturated than many smaller or poorly cut stones, and its eye clean clarity evaluated at eye level allows light to flow unobstructed through the pavilion. The emerald cut, executed with precision and an excellent polish, creates long, elegant facets that emphasize both depth of tone and a mirror like brilliance that differs from the more common mixed cuts where table sparkle can look fragmented. Compared with round or cushion cuts of similar weight, this emerald cut displays a cleaner, architectural flash that highlights the stone s natural pleochroism without losing brightness, making it stand out beside sapphires or spinels that may match color but not the same linear elegance and face up area per carat.

At The Natural Gemstone Company we select and present gemstones that combine visual impact with responsible value, and this heat treated tanzanite represents that promise. Heat treatment is a widely accepted enhancement that stabilizes and intensifies color, but the real value here is how the cutter leveraged the rough to produce an emerald cut with ideal proportions and an excellent polish, maximizing face up presence and scintillation in a size rarely seen in eye clean material. For buyers seeking an exceptional single stone for a bespoke ring or a dramatic pendant, this tanzanite offers more presence per carat than many smaller stones and more architectural sophistication than bulkier, less precise cuts. Its Tanzanian origin speaks to authenticity and provenance, which when combined with the stone s clarity and polish, delivers a quality that is both collectible and wearable. For those comparing this gem to other market offerings, consider its combination of weight, eye clean clarity, intense color, and the refined emerald cut, all curated and guaranteed by The Natural Gemstone Company as a superior choice for a connoisseur or a discerning first time buyer.