2.07ct Maximum Blue Kyanite Gemstone Kyanite is one of the most calming healing crystals you could wish for. For those who find their nerves feel ever frayed or who are prone to quick bursts of anger or anxiety, this is the stone you need to soothe hot heads and piece feelings of chaos back together again. Kyanite can be a great stone for softening communication and growing compassion. Size: 8mm x 6.03mm x 4.4mm Shape: Oval Facet Color: Blue Clarity: VS-SI Treatment: Untreated Origin: Nepal Mohs Hardness: 6-7 View Photos For Further Details.