Tony White, 18ct gold cameo and diamond ring, centring an oval hardstone cameo depicting a Roman emperor in profile, within a surround of twenty-six brilliant-cut diamonds together weighing approximately 1.00 carats, signed white for Tony White, size M 1/2.
- Hardstone - Hardstone is not a scientific name for a particular gemstone, but a word used to describe any one or more semi-precious stones used in jewellery and decorative arts, and can include jade, agate, onyx, rock crystal, amber, jet and carnelian. Softer stones and minerals such as soapstone, and alabaster and hard stones used in building such as marble or granite are generally excluded.
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