This is a porcelain replica of the Holy Crown of Hungary, or the Crown of St. Stephen. For pictures of the real thing, which is enshrined in the Hungarian Parliament, see http://en.wikipedia.org/wiki/Holy_Crown_of_Hungary

The private showroom was incredible, with pieces on display for all different markets, such as the US (their biggest market), Japan (next biggest), Europe and the Middle East. Some of these works are for sale in Hungary at Herend brand stores, but many are not. It was a treat to view them all.