Blue Kyanite Ring, Oval Cabochon, 925 Silver, g2Blue Kyanite is not generally thought of as a Gemstone, but few stones have that beautiful deep Sapphire Blue colour and this example is top quality. The hardness of Kyanite is variable, but with this quality approaches other gemstones however some care should be taken as it is more likely to pick up scratches. Simple elegant setting to show off the stone without distraction, Kyanite has been famous as one of the only two stones that can't hold