emerald

When it comes to gemstones, many people believe that diamonds are the rarest in the world. But in reality, there are some types of stones that are even more valuable and rare than

Experts estimate that this gem of 14cm x 7cm is worth about 4 million rubles (US $ 70,000).

Referring to gems, many people think that diamonds are the rarest precious stones in the world. But in fact, there are some types of stones that are more valuable and rare than

Male beetles when attempting to mate with decoys are a fake beetle that will be destroyed by a 4,000 volt electric current.