Rich purple amethyst shimmers on this gorgeous adjustable tennis necklace; Amethyst; 14K yellow gold; 14-17"L; Lobster clasp closure; Almost all gemstones and blue and black diamonds have been treated to enhance their beauty and require special care; Photo may have been enlarged and/or enhanced; White gold is surface-coated with rhodium to enhance metal color and shine; it may wear off over time requiring replating; Imported