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MO Info Kindly
by: Anonymous

I'm looking to find out the same thing on mine.

Reply: Plse check the comment below. This might hopefully help you too:-)

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MO Mark
by: Anonymous

Hi

I am aware that letters MO is the mark of a registered British maker by the name of:

Joseph Fenton & Sons (Sheffield, UK) 1797 - 1940

however if your ring is also stamped 14k I doubt it this Trademark
perhaps it is a US mark that's not been registered?

Have you had the Diamonds tested? If they are Moissanite there is the possibility. Originally this material referred to a rare mineral discovered by Henri Moissan and has now been synthesised in laboratories.


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9k MO diamond gold tourmaline ring
by: Lilly

I also have a ring, 9k gold, diamond, tourmaline stone, cost $1200 from an antique shop and Also has the MO mark on the inside and I've been wondering what it means for ages. If anyone could help then it would be awesome...

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