Kyanite rings with pure kyanite stones offer that distinctive blue streak most collectors seek. This aluminum silicate mineral forms in metamorphic rock under high pressure, creating the blade-like crystal structure kyanite is known for. Our collection of 36,638 kyanite rings pairs natural stones with .925 sterling silver settings. Kyanite registers 4.5-7 on the Mohs scale depending on crystal direction—harder across the blade, softer lengthwise. Prices range from $6 to $6,302, with free shipping across the United States.
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Kyanite has variable hardness: 6-7 Mohs across the crystal and 4-5 along its length. This makes it suitable for occasional wear rather than heavy daily use. Store your kyanite ring separately to prevent scratches from harder stones.
Color zoning occurs during crystal formation when mineral concentrations shift. Iron and titanium levels vary as the stone grows, producing bands of lighter and deeper blue within one crystal.
Use warm water with mild soap and a soft cloth. Avoid ultrasonic cleaners and steam cleaning, as kyanite can fracture along its cleavage planes under stress.