Emeralds from colombia

I have some emeralds my uncle bought me back from Colombia over 20 years ago I have certificates with them I was just wondering if anyone would be able to give me a guide to value if I posted pictures of the certificates.
I don’t mean exact values I’m just curious they have been away safe for many years and I know nothing about them really. Any help with be appreciated

Your photos do not really highlight the stones, Are the settings including the chains gold and what grade- 9,14,18? Normally, the settings and chains should be stamped with the carat grade. If the settings are gold your stones are likely to be genuine. However, although natural emeralds are valuable their price varies due to quality parameters such as inclusions, color, cut and size.