Tanzanite is the commercial name of the variety from blue to zoisite purple, its real scientific name. Precious gem still very popular today and highly appreciated. Appreciable dimensions, beautiful shine. Rather precious gem cut with facets, to be mounted as a jewel or to collect. Natural origin guaranteed by qualified gemmologist FGA - Treatment: heated practice, common and accepted - Origin: Tanzania - Weight: 3.55 carats - number: 1 large piece large - Dimensions: Pear faceted - Dimensions: 11 x 7.2 mm -Color: from blue to blue-violet, from medium to intense - clarity: clearly visible inclusions