Charles I, 153, 189, 190 memorial rings of, 41 signet of, as Prince of Wales, 156, 157 as king, 157 Charles II, sealed with diamond signet of his father, 157 gave ring to Judge Jeffreys, 191 Charles IV, Emperor, 259 Charles V, of France, signet of, 146 Charles the Bald, letter of, to Pope Nicholas I, 270 Charlotte, Queen, 151 Chase, William M., x Chaves Pass, Arizona, ring found at, 17 Chifflet, Jean Jacques, 139 Childeris I, signet of, 138–140 Chindaswinthe, Visigoth sovereign, promulgated law regarding betrothal rings, 200 Chinese rings, 81, 85, 105–108, 248, 319–321 Chlorastrolite, 335 Chrysoberyl, 86 Chrysolite, _see_ peridot Chrysoprase, 34 Chrysostom, St. John, on ring inscriptions, 135 Church, Sir Arthur Herbert, 86 Church collection, 86 Cicero, tells how Verres had rings made, 16 of ring seized by Verres, 127 Cigarette ring, 94 Clemens Alexandrinus, 14, 121, 133, 199, 296 Clement IV, Pope, “Fisherman’s Ring” of, 263 Clement V, Pope, stones used in ecclesiastical rings in time of, 276 Clement VIII, Pope, 263 Cleopatra, signet of, 126 Cleveland Museum of Art, 90 Clotaire II, coin of, set in ring, 162 Clothilda, receives betrothal ring from Clovis I in 493 A.D., 201, 202 Clovis I of France, on bishops’ signets, 137 Coats-of-arms on signet rings, 149 Coello, Claudio, 59 Coins set in rings, 162 Coke, Sir Edward, historic ring bequeathed by, 189 diamond ring of, 189 College of Arms, London, gift to, by Duke of Norfolk, 181 Color of stones in bishops’ rings, significance of, 274, 275 Columbus, Knights of, rings of, 332 Commodus, signet of, 131 “Communion rings,” 351 Comnenus, Alexis, signet-ring of, 144 Comnenus, John, 144 “Cone-shell” rings, 17 Congo, King of the, thumb ring of, 64 _Conlegium anularium_, 16 Constantius II, signet of, 161 Copper rings, 19, 20, 22, 84, 328 Coral, 63, 78, 341 Cordierite, 86 Corean rings, 107 Coronation ring, English, 174, 282, 283 Coronation ring, French, 284 Cortés, Fernan, 19 Corundum, 86 Cosmas and Damian, Sts., effigies of, on a healing ring, 338 “Cramp rings,” 341–345 Cranach, Lucas, 61 Crisp collection of memorial rings, 43 Culin, Stewart, vii Curry, James, bought Henrietta Maria’s signet, 156 Cushing, Frank H., 21, 22 Cypriote rings, 6, 7, 111, 119, 120 Cyrianides, magic rings described in, 295 D _Dactyliotheca_, 53, 54 Dactylomancy, 299, 308 Daggett, Frank S., viii Dalhousie, Lord, 103 Dalton, O. M., 39, 150 Damer, Miss Dawson, 225 Daniel, Book of, signet mentioned in, 115 Darius III, signet of, 123 Darnley, Henry, Lord, wedding ring of, 217, 218 Dashur, rings found at, 68