Blue CZ pendant and chain in gold over sterling silver

This necklace is in excellent pre owned condition showing little to no signs of wear.  Beautiful blue emerald cut cubic zirconia gemstone with white cubic zirconia accent stones. Prong set in a 14-18k yellow gold plated over sterling silver setting. Singapore chain measures 18 inches in length with room for another 2 more inches with extension chain. Lobster clasp. 925 PAJ CZ