The Mosaic Egg is one of the Imperial Easter eggs created by the firm of Carl Fabergé for the Russian Imperial family, presented by Tsar Nicholas II to his consort Empress Alexandra Feodorovna at Easter 1914. It is widely cited as the last of the Imperial eggs completed before the outbreak of the First World War in August of that year, and as one of the most technically demanding pieces in the series. The egg is held in the British Royal Collection, acquired by Queen Mary in 1934, and is among the publicly accessible Fabergé Imperial eggs in major institutional collections.

Form and decoration

The Mosaic Egg's exterior surface is decorated with a platinum trellis structure that frames a series of pavé-set fields containing precisely cut and arranged calibré gemstones — including diamonds, rubies, emeralds, sapphires, topaz, and demantoid garnets — set into a continuous mosaic pattern that gives the egg its name. Five oval cartouches around the body separate the mosaic fields. The construction technique is exceptional: the platinum lattice was assembled separately and the gem-set fields fitted within it, producing a unified surface that reads visually as a continuous gem-set field rather than as discrete settings.

The trellis structure is reported to have been the work of the workmaster Albert Holmström, a Fabergé Saint Petersburg workmaster, with the design attributed to the workshop of his daughter Alma Pihl, who was responsible for several distinctive designs for the firm in this period.

The surprise

The egg's surprise — the small object concealed inside that was a defining feature of every Imperial Easter egg — is a removable miniature pedestal supporting an oval pendant frame containing painted miniature portraits of the five Romanov children: the four grand duchesses Olga, Tatiana, Maria, and Anastasia, and the Tsarevich Alexei. The miniatures are signed by the painter Vasily Zuiev, who executed many of the late Imperial egg miniatures. The pedestal and pendant frame are themselves richly set with diamonds and other gems and form a freestanding ornament when removed from the egg.

Provenance

The Mosaic Egg passed through the post-revolutionary Soviet sale of Imperial possessions and was purchased in the late 1920s by Cameron and Company, a London dealer, on behalf of Queen Mary. The egg formally entered the British Royal Collection in 1934 and remains there. Public exhibition of the Royal Collection's Fabergé holdings, including the Mosaic Egg, occurs intermittently at the Queen's Gallery in London and Edinburgh.

Significance

The Mosaic Egg is significant on several grounds: it represents the technical and design peak of the Fabergé Imperial egg series in the years immediately preceding the dynasty's fall; the contemporary portraits of the Romanov children carry obvious historical poignancy; and the platinum-and-pavé trellis construction is a distinctive engineering achievement that has not been closely replicated. Among scholars and collectors of Fabergé, the Mosaic Egg is consistently ranked alongside the Coronation Egg, the Lilies of the Valley Egg, and the Winter Egg as a defining piece in the corpus.

Further reading

• Royal Collection Trust — Mosaic Egg entry
• Fabergé — Imperial egg history
• Victoria and Albert Museum — Fabergé reference