Is there a glossary for all these abbreviations - AVC, AGBF?

[lindacat]

I am new here and have been looking on this site for a glossary of what all these abbreviations mean. I see them used all over, but there is no place that I can find to explain them. Some are ACA, AGBF, AVC, and so on. I know that OEC is Old European Cut, and OMC is Old Mine Cut, but I only know thise 2 because I am a fan of the antique cuts.
Can someone provide a link or tell me where I can find out what these all mean? Very confusing for a newbie!

 

[Lew Lew]

Re: Is there a glossary for all these abbreviations - AVC, A

Here's an older one: https://www.pricescope.com/community/threads/acronyms-abbreviations-slang-used-on-forums.69990/. AGBF is A Girl's Best Friend (as in "diamonds are a girl's best friend").
HTH (hope this helps).