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1.69 Ct. Tanzanite from Tanzania
This loose stone ships by Nov 4
Item ID: | K17920 |
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Dimensions (MM): help | Length: 9.51 Width: 7.18 Height: 4.36 |
Weight: | 1.69 Ct. |
Color: help | Bi Color |
Color intensity: help | Light |
Clarity: help | Very Very Slightly Included |
Shape: help | Pear |
Cut: | Mixed Brilliant |
Cutting style: | Faceted |
Enhancements: help | Heat Treated |
Origin: help | Tanzania |
Per carat price: help | $300 |
This exquisite 1.69 carat pear shape bi color tanzanite from Tanzania presents a rare combination of precise cutting, transparent clarity, and subtle bi chromatic character, making it a compelling choice for discerning collectors and designers. Measuring 9.51 x 7.18 x 4.36 millimeters, the gem has been fashioned with a mixed brilliant cut that balances a pavillion of faceted depth with a brilliant style crown, producing lively scintillation and optimized light return. The stone displays light color intensity, with a gentle interplay between cooler bluish violet tones and warmer greenish or yellowish facets that reveal themselves as the gem is rotated under light. This pleochroic tendency is a hallmark of tanzanite, and in this specimen it is accentuated by the careful orientation of the cut, allowing both colors to be appreciated depending on viewing angle. The polish has been graded excellent, which means the facet junctions are sharp and reflective, and the surface finish supports maximum brilliance and fire, while the standard industry enhancement of heat treatment has been applied to stabilize and enhance the desirable hue profile that collectors expect from top tanzanite material.
What sets this particular gem apart for the educated buyer is the nature and arrangement of its internal features, which together form an unmistakable signature of natural tanzanite that is both attractive and diagnostic. Though evaluated at eye level as very very slightly included, under magnification the stone reveals a constellation of minute inclusions that are typical of natural zoisite, including fine needle like silk, occasional pinpoint crystals, and delicate growth zoning that traces the crystal habit from core to edge. These inclusions are extremely small and do not interfere with transparency or brilliance, yet they contribute character by scattering light in micro reflections that add a soft inner glow when the gem is viewed face up. In several facets the inclusions align in subtle bands that emphasize the bi color effect, causing tiny reflective flashes of green and violet to alternate as the stone is turned, a phenomenon that many connoisseurs describe as a living or breathing quality. None of these internal features compromise durability or wearability for standard jewelry settings, and because they can be seen only with magnification they serve as a natural fingerprint that supports authenticity and origin assessment without detracting from the gem aesthetic.
From an investment and design perspective this tanzanite represents an appealing balance of rarity, quality, and workmanship that educated buyers will appreciate. Tanzanite is only found in a very small area of northern Tanzania, making proven provenance an important factor when considering long term value, and this gem is sourced from Tanzania, which aligns with expectations for genuine material. The mixed brilliant cut is an ideal choice for this size and pear outline, offering a lively face up appearance and the versatility to be set as an elegant solitaire, a drop pendant, or as the centerpiece of a bespoke engagement ring. The clarity grade of very very slightly included at eye level places the stone among the cleaner examples available in this weight class, while the light color intensity provides a refined, wearable hue that complements both yellow and white metals, and that will be especially pleasing to clients seeking subtle sophistication rather than saturated theatrical color. The Natural Gemstone Company stands behind the quality assessment provided, and our gem specialists have evaluated the stone for cut proportions, polish, clarity, and enhancement, so that buyers receive transparent and factual information. For care we advise avoiding sudden thermal shock and prolonged exposure to harsh chemicals, and routine professional cleaning will preserve the excellent polish and visual appeal for years of wear.
In summary this 1.69 carat pear shape bi color tanzanite combines the consequences of expert cutting, transparent clarity, and a naturally occurring inclusion pattern that creates an unmistakable internal signature, making it an item of interest for collectors seeking provenance based rarity and for designers crafting refined jewelry. The gem is responsibly heat treated to bring out its best color, it is polished to an excellent finish, and its dimensions and mixed brilliant geometry ensure a lively and elegant presentation in any mounting. Buyers working with The Natural Gemstone Company will find this stone attractive for its balance of technical merit and aesthetic subtlety, and for those who value natural internal character, the microscopic needle like and pinpoint inclusions provide both reassurance of origin and a distinct visual identity that distinguishes this stone from synthetic or heavily treated alternatives.


