As incredible as the cut gemstone is, the natural mineral crystal specimen can be equally, if not more, breathtaking. The featured image is an emerald from Columbia. They are famous for their distinct hue: green with a light touch of blue and they are easily distinguishable from most other emeralds.
This ruby specimen comes from Afghanistan and is nestled in calcite.
Below, you will see an incredible aquamarine from Pakistan. Look at how clean the faces are and how sharp the termination of each side is! Can you believe they come out of the ground this way?
Lastly, an intriguing smithsonite(name for James Smithson, also the founding donor of the Smithsonian Museum) from Mexico seems to bubble-up from anglesite. Small datolite crystals are also present.
Here is another smithsonite, this time from New Mexico: