Gems made this way are significantly less expensive than naturally black diamonds. Celebrities wearing black diamond jewelry are fueling the rise in popularity of this unusual stone. The Most ...

30 Most Expensive Green Gemstones, Ranked by Price ... Large gems are rare and most fluorite stones used in jewelry are small. Fluorite was the first mineral that was seen to “fluoresence ...

From sparkling multi-million-dollar diamonds to custom designs, here are the most expensive diamond rings in the world that redefines luxury.