A dense, white precious metal, usually about 95% pure in jewellery and used to hold stones securely.
Platinum is a silvery-white precious metal used in jewellery, including pieces that hold gemstones. It can be worked as an alloy, so identifying the metal and identifying its purity are separate questions. A fineness figure describes the share of platinum in the alloy in parts per thousand. For example, 950 represents 950 parts platinum in 1,000 parts of alloy by weight. That figure describes composition rather than the weight of the finished piece. In workshop work, the named metal is therefore only part of the material information needed to understand an item.
In job listings
Tiffany & Co.’s Polisher role in Dartford explicitly included platinum among the precious metals handled during refinishing. The listed techniques included sanding, lapping and hand polishing. The workshop serviced platinum pieces without prescribing a technique for a particular platinum alloy. Search local jobs for “jewellery”.
