UV Colorscope – UV Lamp for Fluorescence Testing of Diamonds & Gemstones quote characterizes a good diamond as

characterizes a good diamond as one that is “regular in shape

“The clumsy modern category of ‘precious‘ stones has little relevance when applied to the ancient world

Theophrastus does not use the superlative degree

in the vast majority of cases

making it a versatile and essential tool

UV Colorscope – UV Lamp for Fluorescence Testing of Diamonds & Gemstones quote characterizes a good diamond asThe UV Colorscope Diamond Tester is a professional grade UV inspection unit designed for accurate fluorescence testing of diamonds and other UV sensitive gemstones. Built with a high intensity 366 nm Blacklight Blue UV lamp, this device delivers powerful and consistent illumination for both transmitted and incident UV analysis. Unlike traditional overhead UV testing, the UV Colorscope features a darkfield viewing system that enhances contrast and