Hancocks London acquires Irish-linked Victorian emerald and diamond jewel

Hancocks London has brought an Irish-royal jewel back into view: a circa-1890 emerald and diamond piece tied to the O’Briens, the Barons of Inchiquin, a family descended from Brian Boru, the 11th-century High King of Ireland. The draw is not only the pedigree. At the center sits a 5.67-carat antique Colombian emerald, a stone whose scale, color and documented lineage give the jewel a force that is both historical and immediate.

The piece was made to be worn with Victorian ingenuity. It is convertible, designed as either a pendant or a bangle, with the emerald set in yellow gold claws and surrounded by twelve old mine-cut diamonds and eight larger old European-cut diamonds, for a total of about 10.50 carats of diamonds. The gemstones are mounted in silver and gold, and a fixed loop on the reverse reveals the era’s practical elegance: this was jewelry built to move between occasions, not sit locked in a case.

Its provenance is unusually clear. Hancocks said the jewel was given to Ethel Jane Foster on her marriage to the Honourable Lucius William O’Brien in 1896, at Richard’s Castle near Ludlow in Shropshire. In 1900, Lucius William O’Brien became the 15th Baron Inchiquin, inheriting not only the title but also the Gaelic Irish dignities of Chief of the Name of O’Brien and Prince of Thomond. The Barony of Inchiquin itself dates to 1543, when Henry VIII created it for Murrough O’Brien, placing the jewel squarely within one of Ireland’s oldest noble lines.

Lady Ethel Inchiquin preserved the object in the family record as well as the family vault of memory. In her 1939 will, she called it her “large emerald and diamond bracelet given me by my mother on my marriage.” She died in 1940, and the jewel then passed by descent through a family of six children, remaining with the O’Briens for more than a century.

That kind of continuity matters in a market where named heritage jewels are scarce. Guy Burton, managing director of Hancocks London, placed the Inchiquin emerald among an exceptionally small group of such jewels available today, and said pieces of this caliber come to market very rarely. The gemological case is equally compelling: the Swiss Gemmological Institute reported Colombian origin with no indications of clarity modification, and awarded the stone its rare Appendix letter, describing it as an “Exceptional Emerald.” Untreated high-quality emeralds without fissures are rare by nature, which is precisely why this jewel feels culturally alive now, as much collectible object as inherited chapter of Irish and Victorian history.