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52mm working length
they deliver controlled
3mm link width
10ct to 2ct
Presidium Stone Rest Schofer Germany 52mm working lengthThe Presidium Stone Rest is a testing accessory designed to hold loose stones securely while you work with Presidium gemstone testers. By keeping stones stable in the rest during testing, you ensure consistent contact and more reliable results. The stone rest accommodates three sizes, making it versatile for a range of stone dimensions commonly encountered in gem testing and identification workflows. When using Presidium testers with stones placed in
