Serene with the relaxing blue-green color of the calmest sea, this necklace shines. Created in sterling silver, the style is centered with an oval-cut coastal blue apatite wrapped in a frame of round-cut diamonds. The open twist bail is touched with round diamonds that swirl around the center stone. With a total diamond weight of 1/10 carat, the pendant suspends along an 18-inch cable chain that secures with a lobster clasp. This is a delicate stone and is ranked a 5 on the mohs scale. The hardness of this stone is comparable to that of an opal; treat it like the exotic gemstone that it is. Proper care of this stone is highly important. Do not clean in an ultrasonic cleaner. Clean with mild soap, warm water and soft bristle brush, store in dry environment out of direct sunlight. Rings should be kept in padded jewelry box. Sterling silver should be kept in a tarnish free bag or box.