ZN Jeweler

ZN Jeweler provides professional tools and reference calculations for jewelers. Calculate alloy and solder component weights, estimate diamond carat weight for 11 shapes, convert ring sizes and gold fineness, and calculate metal weight. View metal market quotations with update times and prices per gram. The interface supports 36 languages. Diamond weights are estimates; actual weight depends on the stone and must be determined using scales. Reference calculations do not replace professional assessment. Created by jeweler Zokir Negmatov.