Product｜Iolite. Aquamarine. IOLITE. CORDIERITE Quality｜Iolite from Tanzania is the best in quality and color among all the places where cinnabar is produced. At present, no cinnabar has been found to be optimized by heating, roasting or treatment. It is estimated that the fire resistance of cinnabar in industry makes any processing method futile, so there is no optimized cinnabar. However, it is worth noting that gem-grade cinnabar is rare, and gem-grade cinnabar over 3 carats is even rarer. It is very similar to the situation of peridot. The price of small carats is not expensive, but once it exceeds 3 carats, you will start to feel the pressure on the price. But this also shows that cinnabar over 3 carats does have its collection value. cinnabar is a niche gemstone. The word "niche" here means that it can be carefully appreciated and savored to appreciate the beauty that the general public is more likely to ignore or not notice. The beauty of lapis lazuli is not easy to explore, but once you begin to appreciate the beauty of lapis lazuli, your perspective on the secular world will completely change and reach a higher level. The Mohs hardness of lapis lazuli is 7.0 (referring to the "scratch resistance" ability, not the impact resistance). Net | P1 - that is, the amount of internal characteristics of the gem that can be easily detected by the naked eye | 3.58 carats. Relative to lapis lazuli, it is already a large carat. It is also quite suitable as the main stone of men's rings and women's pendants to replace sapphires, and it has collection value due to its large carat. Shape | 11.4 x 8.5 x 6.7 mm | Designer cushion-shaped cut [custom design CUSHION] Cutting grade: EXCELLENT Color | Tanzanite's blue-purple color can change to gold, gray, light blue, etc. depending on the angle.