Allan Børge Larsen. Danish goldsmith (active 1967-2006). Modernist vintage ring in 14 carat gold adorned with purple amethyst. Diameter: 17 mm. US size: 6.5. In excellent condition. Stamped. Weight: 9 grams. This piece is attributed to the mentioned designer/maker. It has no attribution mark and no official proof of authenticity, however it is well documented in design history. I take full responsibility for any authenticity issues arising from misattribution