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Amethyst Octagon 19.9 × 15 mm, 19.92 ct
This octagon-shaped amethyst gemstone measures 19.9 × 15 mm and weighs 19.92 carats. Its geometric outline offers a focal point for a jewellery design or an addition to your gemstone collection.
Please use the measurements as your guide to scale, rather than judging size from enlarged photographs.