Gold is a metal of high density (19.3 g / cm²), which means that massive jewelry made of it is quite heavy. The ancient monarchs believed that the more jewelry, the better. It is known that a gold necklace was made for one of the Egyptian pharaohs, consisting of plates with inserts - sparkling stones. Such an ornament weighed several kilograms, so they put a counterweight on the back with it to fix the position of the product.