About This Item A stunning Art Deco Style Sterling Silver Octagon Pendant Necklace with Black Onyx and Marcasite. Gemstone Information Marcasite is a type of pyrite which reflects with a captivating metallic charm. Popular in the Victorian era of jewellery making, marcasite gems were once used as an affordable substitute for the sparkle of a diamond. Black Onyx is often used in carved cameo jewellery, black onyx provides a beautiful contrast and a gothic edge to your jewellery collection. Jewellery Collection Experience Art Deco inspired with this silver necklace, featuring gemstones in a symmetrical, geometric pattern. Its clean lines and exquisite craftsmanship make it a timeless treasure for any special occasion. Product Code 214P334201925 Material 925 Sterling silver Gemstone Details 20 x Marcasite - 0.180ct - Round- 1mm 1 x Black Onyx - 1.5ct - Octogon Gemstone Origin Marcasite - Austria Black Onyx - Brazil