As a Gemmologist, you will need to master following:

• calculate value of gems
• examine gems
• gemology
• gemstone grading systems
• identify gemstones
• immerse gemstones in chemical liquid
• recognise fake goods
• use gemstone identification equipment
• write gemstone grading report

More generally, a gemmologist is also versed in:

• gemstones
• operate microscope

It also helps to know the following:

• conduct jewellery market research
• cut gem stones
• determine origin of gemstones
• develop jewellery designs
• model mineral deposits
• polish gemstones
• trade in jewellery
• advise customers on jewellery and watches
• alloys of precious metals
• appraise gemstones
• chemistry
• precious metals