Plate numbers, sieving technique and set-buying advice: how sorting houses size melee diamonds quickly and consistently with sieve sets, loose plates and stands.
Plate numbers, sieving technique and set-buying advice: how sorting houses size melee diamonds quickly and consistently with sieve sets, loose plates and stands.
Readability, capacity, calibration and legal-for-trade rules explained: how to choose the right scale for diamonds, gemstones, gold and silver, from pocket scales to lab balances.
Readability, capacity, calibration and legal-for-trade rules explained: how to choose the right scale for diamonds, gemstones, gold and silver, from pocket scales to lab balances.
Binocular, trinocular or digital? Darkfield or brightfield? A working gemologist's guide to choosing a gem microscope for grading, inclusion study and jewellery inspection in 2026.
Binocular, trinocular or digital? Darkfield or brightfield? A working gemologist's guide to choosing a gem microscope for grading, inclusion study and jewellery inspection in 2026.
Understand loupe magnification, triplet lenses, and field of view for gem grading. Learn to pick the right loupe for inclusions and clarity from Sachi's team.
Understand loupe magnification, triplet lenses, and field of view for gem grading. Learn to pick the right loupe for inclusions and clarity from Sachi's team.
Choose the right lapidary machine, laps, wheels, and polishing powders for gem cutting. A practical buyer's guide for jewelers and hobbyists from Sachi's team.
Choose the right lapidary machine, laps, wheels, and polishing powders for gem cutting. A practical buyer's guide for jewelers and hobbyists from Sachi's team.
Compare thermal, electrical, and CVD diamond testers and learn which instrument detects moissanite, lab-grown, and synthetic diamonds. A practical buyer's guide from Sachi's gemology team.
Compare thermal, electrical, and CVD diamond testers and learn which instrument detects moissanite, lab-grown, and synthetic diamonds. A practical buyer's guide from Sachi's gemology team.
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