Ark Angel Alchemy 16" Rainbow Moonstone 10ct. Necklace w/2" Extender in Sterling Silver The gemstones span 81mm in width with a hanging length of 39mm. Weighing over 15 grams.* Necklace is 16" with an extender for a total length of 18". The larger, oval rainbow moonstones measure 6mm x 8mm and the smaller oval stones measure 5mm x 7mm.* Handmade, Polished Finish, Excellent Quality, Meticulous Detail. Free Silver Gift Box