18K
The fineness of a precious metal object (coin, bar, jewelry, etc.) represents the weight of fine metal therein, in proportion to the total weight which includes alloying base metals and any impurities. Alloy metals are added to increase hardness and durability of coins and jewelry, alter colors, decrease the cost per weight, or avoid the cost of high-purity refinement. For example, copper is added to the precious metal silver to make a more durable alloy for use in coins, housewares and jewelry. Coin silver, which was used for making silver coins in the past, contains 90% silver and 10% copper, by mass. Sterling silver contains 92.5% silver and 7.5% of other metals, usually copper, by mass.
Various ways of expressing fineness have been used and two remain in common use: millesimal fineness expressed in units of parts per 1,000 and karats or carats used only for gold. Karats measure the parts per 24, so that 18 karat = 18⁄24 = 75% gold and 24 karat gold is considered 100% gold.
TOCCA IL CIELO
- 2025-04-03T00:00:00.000000Z
ANTI ANTI
- 2024-11-28T00:00:00.000000Z
GROTTO INFERNO
- 2023-02-17T00:00:00.000000Z
GROTTO
- 2022-10-14T00:00:00.000000Z
GROTTO
- 2022-10-14T00:00:00.000000Z
DICIOTTO
- 2021-05-10T00:00:00.000000Z
Paper Room
- 2019-11-05T00:00:00.000000Z
Moonkids
- 2019-05-06T00:00:00.000000Z
UPPDOWNN
- 2025-11-28T00:00:00.000000Z
Frosted Silver
- 2025-09-19T00:00:00.000000Z
XX
- 2025-03-28T00:00:00.000000Z
DAVVERO
- 2024-09-20T00:00:00.000000Z
DAVVERO
- 2024-09-20T00:00:00.000000Z
Trekking
- 2024-07-05T00:00:00.000000Z
DATTERO
- 2024-06-07T00:00:00.000000Z
Yemen
- 2024-05-03T00:00:00.000000Z
Similar Artists