The mineral titanite is known as sphene in the gem trade. Gem-grade titanite is quite rare, and is prized because of it’s high refractive index and dispersion that is higher than that of diamond. Because of these characteristics, faceted sphene makes for an incredibly beautiful gemstone, although it is rarely clean. This light green sphene is a rare exception–with the exception of one tiny veil that can only be seen with a loupe, it is nearly flawless. When held in the hand it shows flashes of green and yellow, and in sunlight or other bright light the dispersion gives it an incredible fire.
I faceted this sphene in the classic diamond round brilliant design, optimized for sphene to maximize the brilliance and fire. The resulting gemstone is remarkably brilliant and scintillating in the hand. It weighs 2.20 carats and measures 7.5 x 5.5 mm. This is a true collector’s gemstone!