The Gemstone Lab

The grit seemem to work fine it did arrive faster than the tumbler did and I was glad for that.

Great tumbler

This tumbler had literally no set up needed. Getting the tumbler up and running was simple and the directions are easy to follow. Tumbler phase 1 and 2 without issue. Excited to continue to polish and tumble with this tumbler!

In years past I used a QT12 tumbler and made some amazing stones shine, this is my first time using a vibrating machine and am on my first batch. Everything seems great. I really like the fact that I can actually see the stones working and can adjust what goes in the bowl. This first batch should be beautiful. Thanks

Order online was simple and quick. Product shipped within a reasonable time frame and was packaged for safe travels. Excited to find a reputable company with many options for products.

This is a great tumbler! Set up was easy, it's a sturdy device and am excited about all the rocks to be able to tumble.

Fantastic machine!
Quite quiet running.
Works very well fi tumbling hard rocks.

easy website to order from

looks great it is for a gift

Great Products and customer service

The tumbler looks great. I have not had the chance to use it yet. I have a Lortone single tumbler and love it. I am sure if this one performs as well, I will be equally happy.

Was good

Smooth shopping experience and product arrived as expectd.

In May of 2025 I purchased a vibratory tumbler from the Gemstone Lab. The product was fantastic but experienced a warranty issue. I reached out to the Gemstone Lab for support and Craig, the company owner, contacted me immediately. Craig managed the warranty replacement promptly and when we determined the replacement would not reach me in time to complete my Christmas gifts (polished agates), Craig provided a solution. I now will be able to finish my Christmas presents because of Craig and the excellent customer service of the Gemstone Lab. I highly recommend The Gemstone Lab for quality products and superb customer service!!!!

The Lortone 33B tumbler works great it’s very quiet and easy to use. Love having two tumblers going at one time, makes the job twice as fast! Shipping was free and fast and communication from the Gemstone Lab was excellent.