Hemmerle

Hemmerle was founded in Munich in 1893 by brothers Joseph and Anton Hemmerle, initially producing medals and orders for the Bavarian royal court before expanding into jewelry. The firm passed to a third generation under Stefan Hemmerle, who trained as a goldsmith in Munich and worked for jewelers in France, Italy, and Denmark before taking over the family business around 1970. Under his direction Hemmerle moved from traditional court jewelry toward a contemporary, sculptural style known for pairing precious stones with unconventional materials such as iron, copper, or aluminum.

The firm is now run by the fourth generation, Christian and Yasmin Hemmerle. Christian trained as a diamond cutter, studied business in London, and studied at the Gemological Institute of America. Yasmin's specific educational background was not confirmed in available sources. Available sources describe both as actively leading the house through at least 2025, including a recurring presence at TEFAF Maastricht and TEFAF New York. No source in this research identifies a death of any current Hemmerle principal, so questions of living or deceased status, which are ordinarily central to an artist profile, do not apply in the way they would for an individual studio artist.

Independent, dated press criticism specific to a Hemmerle spinel ring was not located. Institutional endorsement exists in Hemmerle's own promotional materials: Florian Hufnagl, in his role as director of Die Neue Sammlung in Munich, and Richard Edgcumbe, a curator at the Victoria and Albert Museum, are both cited there as having praised the house's craftsmanship and originality, though the exact wording of their remarks could not be independently confirmed in this research and is not reproduced here. More broadly, Hemmerle's inclusion in exhibitions such as Pearls at the V&A (2013 to 2014) and the Cooper Hewitt Design Triennial (2016) reflects sustained curatorial interest in the house's material experimentation.

There is no confirmed auction record specific to a work titled "Hemmerle Spinel Ring." Research located a Sotheby's 2024 lot described as a spinel and pink sapphire ring signed Hemmerle, carrying an estimate of USD 20,000 to 30,000, but its final hammer price was not published in available sources.

The strongest documented context for Hemmerle's ring market overall comes from diamond rings rather than spinel: a fancy diamond ring sold for CHF 432,000 at Koller Auctions in Zurich on 4 December 2013, an emerald-cut diamond ring sold for CHF 302,400 at Christie's in 2022, and a fancy vivid yellow diamond ring realized CHF 399,000 at Sotheby's on an unspecified date. These figures establish that signed Hemmerle rings can trade well into six figures, but none of them is the spinel piece in question, and no higher, spinel-specific result was found.

Because "Hemmerle Spinel Ring" names a work rather than a market-tracked individual artist, collectors should treat any specific piece on this basis, not as a body of work with an artist-level price history. There is no catalogue raisonne for Hemmerle, and authenticity rests on the maker's signature or mark as recorded by the selling auction house, or direct confirmation through the Hemmerle atelier in Munich. Public sale data for spinel-specific Hemmerle pieces is thin, with at least one recent spinel ring's final price unpublished, so any valuation should be anchored to a comparable, fully documented sale rather than to the higher diamond-ring results cited above, which involve a different gemstone and cannot be assumed to transfer directly.