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Search Results - Jewellery Care, Gemstones - Loose
your search of 'Jewellery Care, Gemstones - Loose' has 1 result.
25/09/2009
Gems can exhibit many different types of damage, including that caused
by accident or negligence. With a little knowledge, such damage can
often be avoided. PROFESSOR HENRY A. HÄNNI discusses the how and why of
gem care.
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