Jewelry laboratories may also do the following tests:

Gemological Testing: Assessing the authenticity Testing
quality Testing
and characteristics of gemstones using tools such as microscopes and spectrometers Testing
Metal Purity Testing: Determining the purity of precious metals through methods like X-ray fluorescence (XRF) and fire assay Testing
Durability Testing: Evaluating the strength and longevity of jewelry pieces Testing
especially settings and clasps Testing
Allergy Testing: Ensuring the materials used do not cause allergic reactions Testing
particularly for items in direct contact with skin Testing