Some myths vs. facts in jewellery
Here are some myths should not believe in:
Biting is a suitable method to test out the authenticity of gold – No, there are other soft materials that can be coated with gold.
Gold comes in different colours – No, real gold is yellow. Gold is alloyed with other metals to change its colour and strength.
Diamonds are Indestructible – No, a diamond can be scratched and damaged by another tougher one.
Diamond is the rarest gemstone in the World – No, high-quality emeralds, rubies, and sapphires as well as tanzanites and black opals (among others) are rarer in nature than diamonds.
Sapphires are always blue - No, sapphires come in a wide range of colours.

Here are some interesting facts:
The most common form of silver is sterling silver. This is actually only 92.5% pure silver, with the other 7.5% made up of copper.
Silver is now rarer than gold.
Silver is the most reflective element, reflecting 95% of the visible light spectrum.
In ancient Egypt, silver was more valued than gold.
Gold is the only metal that is yellow. Other yellow metals are alloys.
All the gold ever mined would fit into a cube of 68ft.
An Estimated 99% of Pearls on the Market Today are Cultured
It takes at least six months to produce a pearl.