Platinum Jewelry Appraisal, Quality Markings, Alloy Composition Unknown8:07 PM Platinum is a chemical element with the chemical symbol Pt and an atomic number of 78. It Is in Group 10 if the periodic table of element... 0 Comments Read
Diamond Appraising Using Naked Eye With 10x Loupe Unknown8:14 PM What is a Diamond - is a mineral of carbon that is crystallized in an isometric arrangement and is born hundreds of miles below the earth’... 0 Comments Read