We at Riverstones wanted to also offer a classic, timeless real gold collection. That has become the Solid Gold Collection. The Enlighted bracelet is one of our favorite pieces of jewelry out of this collection. So it is made of 18ct gold which means that the rings, bracelets and necklaces are made of 75% gold. 100% gold is too weak to make jewelry out of, so there must always be a mix with another metal.