The birthstones are beautiful cubic zirconia that represent each sister's birth month, adding a personal touch. This necklace is a perfect gift for sisters who want to commemorate their bond and love for each other. The style is understated and versatile enough to be worn every day, adding a touch of sentimentality to any outfit. Solid 925 Sterling Silver: no Lead, no nickel and hypoallergenic. This best friends necklace will not turn your skin green. Adjustable Chain: 18 in chain plus 2 in adjustable extender, this best friend necklaces for 2 is suit for most of us. Pendant is removable from chain. Sister Jewelry Gifts : This sister necklaces is the perfect gift for a birthday, graduation, or any other special occasion. It serves as a constant reminder of the love and connection that exists between sisters, no matter where they are in the world. What You Get: 925 sterling silver best friend necklaces, gift box, and silver polishing cloth. Sterling silver sister necklace packaged in a small jewelry box and made it a decent gift. All our jewelry are 100% Sterling Silver and have S925 mark.