94.30ct Natural Aquamarine Ring in 18ct White Gold

An aquamarine ring the large rectangular mixed-cut aquamarine, weighing approximately 94.30 carats, mounted in 18ct white gold, size S. Accompanied by GSL report no. AA61358/1, dated 10 October 2018, stating that the aquamarine is natural with strong indication of no treatment. Accompanied by Grs report no. GRS2019-018595, dated 22 January 2019, stating that the aquamarine (-beryl) is natural with application of treatment undeterminable. From intricately carved amulets to Queen Elizabeth's 'Brazilian Parure' and matching tiara, aquamarines are coveted for their captivating greenish-blue colour that is reminiscent of its name which translates to 'Water of the sea' from Latin. In modern times, this important member of the beryl family has been unearthed in the Santa Maria de Itabira mine in Brazil. Specimens from this region are praised for their saturated deep blue colour and 'Eye clean' clarity - which is highly unusual in beryl. In the trade, 'Santa Maria' now stands for a supreme colour in the finest aquamarines. Whilst the majority of aquamarines are heat-treated to obtain a bluish hue, this approximately 94.30-carat stone has strong indication of not having undergone any heat treatment and amazes with its superb, crisp colouring. A true feat of nature, other important aquamarines are held in the permanent collections at the Smithsonian National Museum of natural history, the Franklin D. Roosevelt Presidential library in Hyde park, New York, as well as the natural history Museum of London and Los Angeles.