Amethyst Oval CharmAn oval amethyst at 53mm with a white CZ accent in a 209. 5mm 925 sterling silver setting the Amethyst Oval is the softer, rounder version of the marquise: same deep purple, same material quality, a more symmetrical form. At 0. 69g, it disappears in weight while the colour stays visible. The oval cut distributes the amethyst's depth of tone evenly across the stone's surface. Add to a charm bracelet for colour or wear on a fine chain as a solitaire