Our Art Deco inspired jewellery embodies the geometric lines and embellished styles that once adorned the glamorous of the 1920s.This Art Deco inspired necklace features a central round black onyx gemstone, surrounded by glistening marcasite stones.It was once thought that onyx eliminated negative thinking, heightened the senses and improved intuition.Onyx Information: Number of Stones: 1 Stone Shape: Round Stone Size: 7mm Carat Weight: 1.20ct Natural/Created: Natural Onyx Country of Origin: Brazil marcasite Information: Number of Stones: 18 Stone Shape: Round Stone Size: 17 x (1.20mm) | 1 x (1.10mm) Carat Weight: 0.23ct Natural/Created: Natural marcasite Country of Origin: Austria