Michael Steinmetz Goldsmith

Go to content

about gold...


Q: Is 9 karat gold stronger than 18 karat gold?
A: No, it depends on the alloy. Dental gold for example is mostly 18 karat and it is one of the hardest gold alloys.
Only 24 karat gold is too soft for jewellery.

Q: What is the difference between 9, 14 and 18 karat gold?
A: Pure gold or fine gold is 24 karat or 100% gold. 18 karat is 75% gold(internationally stamped with "750") , 14 karat gold contains 58.5% gold (internationally stamped with"585") and 9 karat is only 37.5% gold, the rest is a mixture of copper and silver.

Because of the high content of silver and copper, 9 karat gold tarnishes and doesn't have that 'golden' shine that 14 or 18 karat has.
24 karat gold is not used for jewellery as it is too soft.
22 karat is used in many asian countries where the value of the material is important.
14 karat gold is popular in Europe because it has that golden shine and doesn't tarnish and is less expensive than 18 karat.
I only use 14 or 18 karat gold for my jewellery.

Q: When you redesign jewellery, can you use the old gold?
A: It depends on the type of jewellery. Most pieces have gold solder joints, solder makes an alloy brittle if the whole piece is melted down.
If the jewellery only has a few joints like rings, they can be cut out and the rest reused.
Chains on the other side contain a lot of joints, in this case the gold will be sent in for refining and the gold value credited to the new piece.

Q: What is the difference between the word "karat" used for gold and "carat" used for diamonds?
A: For gold "Karat" is a measurement for the gold content, as explained above, 24 karat means 100% pure gold and so on.
For diamonds "Carat" is used for the weight of the stone, one carat equals 0.2 gram.

Home | profile | gallery | more about... | faq's | Site Map


Back to content | Back to main menu