WELDED BLISS GUIDE TO GOLD - QUESTIONS AND ANSWERS.

What is the difference between 18 and 9 carat gold?
Gold is a pure metal but is inherently soft, therefore to make practical jewellery it must be alloyed with other metals to make it harder. Pure gold is known as 24 carat or 1000 parts pure in practice 999, 18 carat gold is a high purity gold alloy of 750 parts per 1000 (75%), 9 carat gold is the lowest UK legal standard at 375 parts per 1000 (37.5%). Alloys which fall below this standard cannot legally be described as gold, though some countries do allow lower standards.

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