It's very pretty. I have seen similar on ebay for between $115 and 250. Yours looks like pristine, and a really beautiful aquamarine. Maybe $500 even or if it's an amazing aquamarine (hard to tell from a picture) over a grand. Ultimately, the value is what people will pay for it. Your insurance will only insure it specially if you get an appraisal, unless your policy has a declared addition option.
