Purity Markings

What do numbers mean on gold?

Most gold is stamped with numbers tell how pure the gold is. They are in the thousandth, so if you want to know the purity percentage, just move the decimal point in one space. For example: 750 is 75.0% pure gold (or 18 karat) Here’s an easy chart: 999.9, 999.

What does M 925 mean on a ring?

This is the name used to denote silver jewelry covered with a thin layer of gold. Its mean that the jewelry is not made of solid gold. 925 is a universal sign of sterling silver content meaning 92.5 of the content is 92.5 silver and the remaining 7.5 percent is made of other elements.

What does 925 MBC mean on jewelry?

Herringbone Chain, stamped “Made in Italy” and “925 MBC”. This means it is 925 Sterling Silver that has been Gold Plated.

What does 99.9 mean in gold?

24K gold. A 24 Karat gold is 100 per cent pure gold and does not have any other metal mixed. In the local market, it is known as 99.9 per cent pure and has a distinct bright yellow color. The 24 karat gold is more expensive than 22 or 18 Karat gold.

What does 60 mean on a ring?

Simple. Both depth and table are 60% of the diamond’s diameter at the girdle.

What does it mean when a metal has a silver mark on it?

Silverplate: The silver content in silverplated wares is minimal. A silverplate marking, sometimes incorporated into a manufacturer’s mark, indicates that the item was made by electroplating a base metal with a relatively thin coating of silver.

What kind of gold has a number mark on it?

Gold can be silver or even rose or green, depending on what it’s alloyed with and how it’s made. Silver metals have similar number markings but are usually preceded with a period.

Where does the 925 mark on sterling silver come from?

In fact the vast majority of mass produced silver reproductions today, whether made in Thailand, India, England, Europe or America, now include 925 in the mark. With the 925 standard mark, a piece of silver can virtually be sold world wide with the same mark. The use of 925, however, does not preclude the use of sterling.

What is the standard mark on a sterling silver plate?

The separate standard mark may appear as 925 only or 925 enclosed in a simple shape such as an oval, square or circle. If a piece was made in a foreign country for import into England, it would include a maker’s mark, control mark and standard mark.