― Different Gemstones can mean a lot of things to a lot of different people. Semi-precious stones like Citrine, Peridot, Aquamarine, etc could represent a birthday or each once could represent a child in a Mother's Day ring. ∙ In some cultures different stones can even show meaning. For example green jade can be a wish of good luck. In the US most of us know what solitary diamond ring is for. There was recently a story about why Mark Zuckerberg bought a ruby engagement ring for his [...].