Tanzanite is a blue color-variety of the mineral zoisite. Color: Blue to bluish purple to bluish violet. The color of commercial stones is almost always produced or enhanced by heating brown or …

The system works by breaking down Tanzanite color into 3 distinct components, Hue, Tone and Saturation and then compiling a 3 part grade. The grade is scientifically based on a …

Judging Tanzanite Color can be a confusing undertaking, especially online. This article will demonstrate Tanzanite color qualities in straightforward terms without the jargon.

2023年10月16日 · The ideal color for tanzanite depends on personal preference, but in the gem trade, deep blue tanzanite with a strong violet component is considered the most valuable. …

Tanzanite Color Grades & Tanzanite Grading Chart This color grading system and chart was developed by the Tanzanite Foundation, www.tanzanitefoundation.org The color quality is …

2023年7月17日 · Tanzanite’s color spectrum encompasses a range of breathtaking blue-violet hues, each with its own unique charm and appeal. From deep blue to violet-blue and violetish …

Tanzanite forms as a brownish crystal and is trichroic, which means it shows three colours – brown, blue and violet – concurrently. Heating, either underground naturally by metamorphic …

2023年10月4日 · The classic tanzanite stone color is blue but it represents a beautiful palate of violetish-blue. Tanzanite color plays a crucial role in assessing its value. Its interesting color …

The color of a fine, 1.00 carat tanzanite is likely – at its darkest – to be a medium blue or GIA 5/5. Consumers should be wary of online retailers selling smaller stones (between 0.50 to 2.50 …

2023年11月16日 · In this comprehensive guide, we will delve into the intricacies of tanzanite color, exploring the factors that contribute to its allure, the ideal color characteristics, and the …