The colours of gold

The Colours of Gold

If you were to go through your jewellery box and take out all of your yellow gold necklaces, rings, bangles and charms and place them side by side, you may be surprised to find they are not exactly alike in colour. Each by itself looks like yellow gold, so why don’t they all look exactly the same? The answer lies in the fact that 9ct gold contains 9 parts of 24ct gold and 15 parts of other … [Read more...]

How to ruin your jewellery without trying

One of the most common causes of damage to precious metal jewellery is not widely known. Pure gold is impervious to almost any chemical except a special mixture of sulphuric and hydrochloric acids known as Aqua Regia. However, there is almost no jewellery made from pure gold as it is far too soft a metal to make it practical, so gold is typically alloyed with other metals to provide the … [Read more...]