2 pcs, 6x9mm, Kyanite, London, Sapphire Blue Quartz Vermeil or Sterling Silver Bezel Rim Pear Drop Finding, September Birthstone GS-0104-KB. (43.8k) $7.07. Genuine Kyanite Stud Earrings - Choose a size! Sterling silver and true blue gems, post earrings, non-plated, no nickel and hypoallergenic. (4.8k) $18.00.