Loose 19 Carat Tanzanite

Nineteen-carat tanzanites hold exceptional historical significance as representatives of an increasingly rare geological treasure discovered only in 1967. These natural gems exist in a class of stones once reserved exclusively for museums and elite private collections, with fewer than a dozen documented specimens of this size and quality changing hands annually worldwide. The historical price appreciation of these conflict-free precious stones has consistently outpaced inflation, with top-quality specimens increasing in value approximately 10-15% annually as Tanzania’s limited deposits continue depleting, adding historical investment significance to their geological importance.

Clarity dramatically impacts the value of ultra-rare tanzanite specimens, with eye-clean nineteen-carat stones commanding premiums of 50-100% over included specimens of similar size. While minor inclusions are acceptable in smaller tanzanites, collectors expect exceptional clarity in these investment-grade gems. Natural inclusions that don’t compromise structural integrity or visibility can actually authenticate the stone’s genuine origin, but significant clarity issues can substantially reduce worth. For these precious stones, professional gemological assessment of clarity characteristics is essential when evaluating their true market value.

Nineteen-carat tanzanites rank among the most coveted colored gemstones due to their extraordinary size combined with tanzanite’s signature trichroic color properties. These natural gems display exceptional color saturation that smaller specimens cannot match, with rich violet-blue hues that shift dramatically under different lighting conditions. Their extreme rarity – existing only in Tanzania’s depleting Merelani Hills – creates both collectible value and investment potential. Additionally, these conflict-free precious stones offer spectacular visual presence in high-jewelry creations, combining significant size with the exotic appeal of one of the world’s newest and most limited gemstone varieties.

Serious collectors should approach purchasing investment-grade tanzanites by first securing expert gemological consultation to evaluate color saturation, clarity, and cut quality. Verify authenticity through comprehensive certification from respected laboratories like GIA, confirming natural origin and documenting any treatments. Establish clear provenance tracing the stone to Tanzania’s Merelani Hills – the world’s only tanzanite source. Compare pricing across multiple high-end dealers specializing in rare colored gems rather than general jewelers. Finally, ensure all documentation, including original certification, appraisals, and ownership history, accompanies these valuable natural stones to maximize their long-term investment worth.