Gemologist jewellers Stone DIAMOND CARAT GAUGE Weight Sizing gem gemstone size

Handy aluminium gem gauge can measure diamond carats from 0.3 to 4 carats also with mm sizes, has birthstone chart on the back. 

We sell a range of great value tools and parts for watch, clock and Jewellery craft. Please see in shop.

Please buy with confidence if you are not happy we offer a full 60 day refund for any reason, just return the item.