Sphene trillion

Jewelry insert made of natural sphene in the form of "trillion". The color is yellow-green with iridescence. transparent. Video Blog.
Sphene (also called Titanite) is a rare and exquisite gem, one of the most beautiful creations of nature. His brilliance and the game can compete with Diamonds (the coefficient of refraction higher than that of Sapphire, Demantoid garnet (RI OT1.843 to 2.110 - close to Diamonds) and the variance (simplified decomposition of the beam into rainbow) - even higher than Diamond (0.051 – Sphene, 0.044 – Diamond). Another undoubted advantage of the Sphene - it's interesting, always trichromacy color. Regardless of the General tone of the stone (which may be green, yellow, brown, red), in reviewing the stone from different sides appear two shades. As a result of these physical properties, the cut stone Sphene is surprisingly sparkling, shimmering shades of shimmering, sparkling multicolored sparks, great aesthetic effect. Why is the stone with such a stunning "appearance" is so little known in the jewelry world? This can be attributed to two reasons. The first is the comparative rarity of the mineral, especially large clean samples. Absolutely clean stone Sphene is almost impossible to find, this is a huge rarity and value. But beautiful and in demand even samples with inclusions. The lack of cleanliness visually kompensiruet - "hiding" behind color and luster. The second reason is the relatively low hardness of Sphene (5-5,5, much like Opals), the process of setting in jewelry complex, requires special skills and care of a jeweler.