suspect jewellery valuation

[AnnaK]

I had a ring valued at a 'specialist jewellers'. I took it in saying I am not sure if it is worth anything or nothing, either way it wasn't a problem at the time. The jewellers gave me an insurance certificate stating it was 9ct white gold with a pink tourmaline, worth £1100. I took it to some jewellery auctioneers recently who said it as silver and worth about £2. Obviously I had to pay for the original valuation and I am fairly cross, as I was counting on making some money out of it now that No2 is on the way. Any thoughts on where I stand with this?
Many thanks.

Maybe a trip to Citizens Advice with this.

How bad of the jewellers.

get another opinion from another jeweller.

What makes you think the jewellers is wrong and the auctioneers is right?

I would be more suspicious at the auctioneers than the jewellers as the jewellers had nothing to gain from it but the auctioneers might....

Can you see any hall markings yourself?

I could help you out with that.

Thank you for the comments. Sorry, I haven't responded as I only get occasional internet acces and I only got the ring back last Friday. NBG, there are no hallmarks for me to attempt to identify it. All I know about it is that is came from my German great aunt, so it is quite old. There is no evidence of any tarnishing so the fact it is silver does surprise me. Yes, I think I will try another jewellers, but am not impressed with having to pay more valuation fees. Many thanks, everyone.