18 kt G F A engranved on ging?

Answer 1

The letters and numbers "18 kt G F A" engraved on a ring indicate that the ring is made of 18 karat gold and the letters G F and A stand for the gold\'s purity fineness and alloy type respectively. In order:

• 18 karat gold means the ring is composed of 18 parts gold and 6 parts of another metal such as silver nickel palladium or zinc.
• The letter G stands for the gold\'s purity which is usually between 375 and 999 parts per thousand. The letter G indicates the gold is 750 parts per thousand or 75% pure.
• The letter F stands for the gold\'s fineness which is measured in parts per thousand. In this case the letter F indicates the gold is 750 parts per thousand or 75% fine.
• The letter A stands for the type of alloy used to combine the gold with the other metal. In this case the letter A indicates that the alloy is pure gold.

So the letters and numbers "18 kt G F A" engraved on a ring indicate that the ring is made of 18 karat gold that is 75% pure and 75% fine and the alloy used to combine the gold with the other metal is pure gold.