"Lobortas" Classic Jewelry House (before 2006 – Lobortas Jewelry House) is a Ukrainian jewellery company, founded on January 15, 1991 in Kiev, the capital of Ukraine, by Igor Lobortas. The company makes handcrafted jewelry, including jewels with hard-fired enamels made with the use of an ancient technique brought to the medieval state of Kievan Rus from Byzantium.
In July 21, 2011 the company set a Guinness World Record by inserting 2,525 cut diamonds in one ring, known as “Tsarevna Swan”.
Some works from the Lobortas Jewelry House are in possession of Maria Vladimirovna, claimant to the headship of the Imperial Family of Russia and pretender to the titles of Empress and Autocrat of All the Russias, Patriarch Kirill I of Moscow, the 14th Dalai Lama of Tibet, Sheikh Hamed bin Zayed Al Nahyan, presidents of CIS countries, businessmen and entertainers.