10-13 mm Round/Near Round Graduated Medium Grey Tahitian Cultured Pearl Necklace is knotted and finished with 12 mm 14k Palladium white gold magnetic ball clasp or 10 mm 14k white gold diamond magnetic ball clasp. The magnetic clasp is strong and easy to put on without struggling with clasping. The necklace measures approximately 17" - 18" in length unless otherwise noted. Millimeter sizes and weights listed are approximate. Pearl is June's birthstone and 3rd and 30th Anniversary Stone. 

Pearls Quality Description: Medium to medium-dark gray; good to medium luster; slight blemishes distributed over 30% of the surface.  

Gem Species: Pearl Stone 

Stone Enhancement Code: N

Hardness: 2.5-4

Gemstone Quality: B

Heat Reaction: Poor-high heat may cause burning

Chemical Reaction: All acids

Caution: Never use in an ultrasonic cleaner or with a steamer.