Spravochnik Dlja Juvelira ◎

It provides immediate access to "hard-to-find" information like melting points and heating properties that are often missing from standard textbooks.

While Knuth’s work is the most prominent "Sprovochnik," other valuable guides include: spravochnik dlja juvelira

Includes an expanded list of gemstones with their physical characteristics, diagrams for over 40 cutting styles , and official diamond grading standards. diagrams for over 40 cutting styles

Contains weight conversion charts, chemical preparation formulas, and comprehensive ring size gauges. chemical preparation formulas