The <a href="https://en.wikipedia.org/wiki/Dresden_Green_Diamond" class="extiw" title="w:Dresden Green Diamond">Dresden Green Diamond</a>.<br>Located in the <a href="https://en.wikipedia.org/wiki/Gr%C3%BCnes_Gew%C3%B6lbe" class="extiw" title="w:Grünes Gewölbe">Grünes Gewölbe</a> in Dresden <a href="https://en.wikipedia.org/wiki/Dresden_Castle" class="extiw" title="w:Dresden Castle">Dresden Castle</a>
<a href="//commons.wikimedia.org/wiki/User:Andraszy" title="User:Andraszy">Andraszy</a>
CC BY-SA 4.0
<span class="int-own-work" lang="en">Own work</span>