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Note: Roseco will be open on New Year's Eve until 4:00pm Central and closed on New Year's Day.
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Roseco will be closed on Monday, September 3rd, for Labor Day Holiday. We will reopen on Tuesday. September 4th.

Testing Supplies

Roseco carries a large selection of electronic and chemical testing equipment and supplies for testing diamonds, moissanite, gemstones, gold, platinum, watch batteries, and more.


Diamond Testers
Diamond Testers
Gold, Platinum, and Silver Metal Testers
Metal Testers
Other Type Testers
Other Testers