And yes, this does give new meaning to the phrase hot in Cleveland ...
https://www.lostart.de/en/Verlust/596426
(byzantinisch)
Title
Saint George, oval heliotrope cameo
Dating
1001/1100
Object type
Group of reported objects
Material / Technique
Heliotrope / cut
Width
2.80 cm
Length
3.10 cm
Inventory number
Ahv 86
Description
Oval heliotrope, with the bust of Saint George in high relief and the inscription: ΑΓΙΟ Γε ωρ [ligated] ΓΙ ΟϹ (replica).
Provenance
Extant in the Kunstkammer since at least 1764; exhibited in the Ducal
Museum until at least 1939; probable loss after 1945; present location:
Cleveland Museum of Art, Ohio (Dudley P. Allen Fund 1959.41).
Literature / Source
Inventar 1764, fol. 33r, Nr. 32; Inventar 1830, fol. 18v, Nr. 32;
Inventar 1858, Bd. 1, Cap. III Gemmen, 6. Heliotrop, Nr. 206; Aldenhoven
Geräth und Schmuck, III Gemmen, Nr. 86 / Lit.: Klein, Holger A.: Sacred
Gifts and Worldly Treasures. Medieval Masterworks from the Cleveland
Museum of Art. Cleveland, Ohio: Cleveland Museum of Art, 2007, S. 78f.,
no. 21
Published since
Contact
Stiftung Schloss Friedenstein
Gotha
Schlossplatz 1
99867 Gotha
Germany
Phone
0049 (0) 03621 8234-0
Fax
0049 (0) 03621 8234-290
Contact
Dr. Tobias Pfeifer-Helke
Position
Stiftungsdirektor
Phone
+49 (0) 621-8234 100
Contact
Dr. Timo Trümper
Position
Kustode für Gemälde und Plastik
Phone
+49 (0) 3621 8234 553
Contact
Ronny Licht
Position
Provenienzforscher
Phone
+49 (0) 3621-82 34 329
https://www.clevelandart.org/art/1959.41