Vintage Crown

Vintage Crown with stones and amazing Aurora Borealis that can be seen across a room - I had to photo this with not much light because if the crystals - there is a maker mark on the back of the pin it’s an x that I can make out - it’s not been tested - and I don’t think it’s real - but it sure does look like it’s fit for a Queen - the mark is 2 lines that look like an x but not an x - if this makes sense