14K gold-plated sterling silver; onyx; 14"L with 2" extension; Pendant: 0.4" x 0.5"; Lobster clasp closure; Photo may have been enlarged and/or enhanced; Almost all gemstones and black diamonds have been treated to enhance their beauty and require special care; Some silver jewelry may be surface-coated with rhodium to enhance metal color and shine; it may wear off over time requiring replating.; Made in India