Boxed Nanna Ditzel for Georg Jensen 18ct Gold Ring No 100 Victorian_charm It has what look like

It has what look like French assay marks (which usually means 18ct) but they are a little worn and its hard to tell so we x-ray tested it and its 14ct so it may be a different country's hallmark or an older piece

peridot (olivine)

We're finding it hard to decide so we'd welcome your best guesses

satin and velvet tooled leather box

Materials: 18ct white gold (hallmark very worn)

Boxed Nanna Ditzel for Georg Jensen 18ct Gold Ring No 100 Victorian_charm It has what look likeDescription: Lovely tactile Jensen ring in great condition and its original box. It's very heavy and makes a real statement. As far as we can see there are very few of these available for sale and the last one that sold went for a lot more! Age: c1960s 70s mid century Size and weight: 19. 6g 13mm at widest, band is 5mm wide on bottom, The rise is about 6mm. UK Size Q, US size 8. It may be possible to re size this ring but we wouldn't like to do it.