Shelley's Vintage Originals. The centerpiece of this necklace is a former clip earring with large square cut blue rhinestones and clear round rhinestones. They are prong set for security. The pendant measures 1 1/4" in circumference. The necklace is custom made from two differing polished silver tone chains asymmetrically inset with chandelier crystals. The necklace has a lobster claw clasp and is adjustable from 19" to 20" in length. The necklace can be shortened per customer request.