LONDON (Agence France-Presse)—A pair of Russian art auctions in London this week smashed records with $80 million worth of art changing hands, auction house Sotheby's said on Tuesday.

Sotheby's first two auctions sold £38.7 million (€54 million, $80.1 million) worth of art, including £3 million for Bluebells, an avant-garde piece by Natalia Goncharova and the most valuable work sold at either auction.

In all, 14 separate records were set for works of art by Russian artists sold at auction.

The sales are part of a week-long set of auctions by Christie's, Sotheby's, Bonham's and McDougall's of Russian art, with the likely highlight a newly discovered Faberge egg, which is tipped to fetch up to nine million pounds.

"Tonight we have witnessed history in motion," Jo Vickery, head of Sotheby's Russian Art department in London, said in a statement on Tuesday.

"The Russian art market has finally come of age and is now fully recognized on the international art market. What is even more astounding is the sense that this market is still evolving ... we can feel confident that the market remains in a state of active growth."

Even amidst the records, though, the highlight will almost certainly be the Faberge egg, which goes on sale Wednesday.

Faberge, a Russian jeweller whose name is synonymous with extravagant craftsmanship, made 50 eggs for the Russian royal family but is only known to have created 12 eggs to similar standards for private clients.

The egg on sale this week was made for the Rothschild family in 1902 and contains a diamond-encrusted cockerel which pops out every hour to flap its wings and nod its head while opening and shutting its beak and crowing.

"We are absolutely thrilled to have it, it's incredibly rare to have an egg of this quality, this one was virtually unknown," said Anthony Philiips, International Director Of Silver and Russian Works of art at Christie's.