Ark Angel Alchemy 19ct. Natural Labradorite 18" Necklace with 2" Extender in Sterling Silver The gemstones span 110mm in width with a hanging length of 43mm at the center of the necklace. Weighing 20 grams.* Necklace is 18" with a 2" extender to vary the necklace length. The total necklace length is 20". The central, oval labradorite stone measures 8mm x 5mm and the marquise stones are 10mm x 5mm. The round stones are 5mm in diameter.* Free Silver Gift Box with Purchase. Polished Finish, Excellent Quality, Meticulous Detail.