Explore these ideas and much more!

Moab Rock Shop
Another fun place to go and sluice for gems.  You can actually go in the mines and dug your own buckets to sluice.  Wear old clothes you will get dirty here.
Moab Giants Dinosaur Playground...museum and so much more, Moab Utah
Gem Mountain in Spruce Pine, NC | Finders Keepers: 6 Places to Hunt for Bling on Vacation | MiniTime.com
Venetian hotel, Las Vegas...coolest hotel on earth.
Nearly 30,000 diamonds have been found in the last 40 years at Crater of Diamonds State Park in Murfreesboro, Ark.