Circumnavigate the boreal reaches of the globe to explore gems from polar regions.
Read MoreA treatise on the design, display, care and repair of fine gemstones.
Read MoreLarge quantities of colourless topaz are currently being treated by gamma irradiation to turn them blue.
Read More
Among the collection assembled by Dr Edward Gübelin are a number of uncommon gemstones from many worldwide localities.
Read More
