6.43 Ct.Tw.Total Carat Weight Tanzanite Pair from Tanzania

This matched pair of tanzanites presents a rare combination of size, clarity, and color that will appeal to an informed collector or a discerning jeweler. The two stones weigh 3.23 carats and 3.20 carats respectively, with near identical dimensions of 9.76 by 8.50 by 5.96 millimeters and 9.71 by 8.47 by 5.61 millimeters. Both are fashioned into a fancy shape, exhibiting carefully executed facet geometry and an excellent polish that contributes to superior light return and visual depth. These stones are transparent and possess a vivid color intensity in the violet range, the hue most sought after in tanzanite, and they have been heat treated, a stable and widely accepted enhancement that optimizes the blue violet tones by reducing brownish undertones commonly found in rough crystals. The origin is Tanzania, the single locality for gem quality tanzanite, and provenance from this source is an important contributor to market value, given the geological rarity and finite supply of Tanzanian tanzanite deposits.

From a clarity and color matching perspective these two stones are an exemplary pairing. Both have been evaluated as eye clean at normal viewing distances, meaning no inclusions are visible to the unaided eye, a practical clarity grade that directly correlates with aesthetic appeal in finished jewelry. Eye clean tanzanites combined with high transparency yield exceptional brilliance and allow the vivid violet color to saturate evenly across each stone. Color matching is particularly tight, with both stones showing the same dominant violet hue and comparable saturation and tone, ensuring consistent appearance when set side by side. The small differences in weight and in lateral dimensions are minimal, the carat variance being only 0.03 carats and the face dimensions differing by less than 0.05 millimeters, differences well within the tolerance expected for matched pairs. The slight depth variation of 0.35 millimeters is beneficial for maintaining similar visual proportions and girdle thickness when set, and the consistent excellent polish and facet symmetry across both stones ensures matching light performance and scintillation.

For an educated buyer these attributes translate into tangible value, both aesthetic and practical. Tanzanite is pleochroic, showing different colors from different viewing angles, and quality cutting and matching maximize the desirable violet blue presentation while minimizing secondary brown or green tones. Heat treatment in tanzanite is a standard, permanently stable enhancement that brings out the characteristic violet blue that the market values, and when fully disclosed as it is here, it does not diminish trade acceptance or long term stability. The eye clean clarity grade assessed at eye level reflects the way tanzanite is experienced in jewelry, and it is often more relevant than microscopic grading for end uses such as earrings or matched ring and pendant sets. The provenance from Tanzania further supports value, as it confirms supply chain authenticity and geological origin, factors that are increasingly important to collectors and ethical buyers. If you are considering settings, this pair is ideal for a high quality matched earring set, or for an elegant pair of symmetrical accents in a bespoke design, and they respond exceptionally well to closed back and open back settings due to their consistent color and polish. Care, use warm soapy water and a soft brush for routine cleaning, avoid sudden temperature shocks and harsh chemicals, and avoid steam cleaners to preserve the stone and any mounting. At The Natural Gemstone Company we stand behind the descriptions we provide, and we welcome requests for additional documentation, high resolution imagery, and individualized consultation to ensure these tanzanites meet your exacting standards.