


Facts About Jewelry
:: There are no official quality and grading standards for gems.
Nevertheless buyers are now more critical towards jewelry with badly cut
stones and more sensitive to colour. Each type of gem has its own physical
properties such as hardness, which can be exactly measured. However colours
can only be loosely described, so stones must usually be shown before
an agreement is made. It is very useful to have a gem certificate or gem
report issued by one of the following independent gem laboratories, especially
for the more valuable stones:
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