Measure Your Pearls, And Other Round Stones With This Handy, Pocket Sized Gauge. The Gauge Measures Only 3.25" X 1", And Will Accurately Measure Round Shaped Stones From .01 To 4.0mm. You Can Slip This Handy Gauge Right Into Your Wallet, So You'll Know You Always Have It With You.

* 3.25" X 1"

* Weighs Only 0.2 Oz

* Small And Convenient

* All Metal

Easy to use