Enamelled gold ring with a sapphire called the signet ring of St. Louis, 14th century (more views here , here , and here )
Gold ring with an aquamarine , 14th century
Various rings from 14th-15th century Germany (see caption ); additional photos here (some are further detailed in other listings on this page)
Gold ring (at left), 14th century
A ring made in three sections and a gold ring from the Colmar treasure, Alsace, 14th century
Copper-alloy ring inscribed with "IHESVS" and "R" repeated three times around the outside, found in Somerset, c. 14th century
Lead-silver ring found in Waudrez, Belgium, made in the 14th-16th centuries
Various rings of the 14th-16th centuries
Gold ring with a garnet cabochon and another gold ring with a garnet cabochon from the Colmar Treasure, Alsace, second quarter of the 14th century
A silver ring from northern Italy, 14th century
Enamelled ring with a ruby called the Black Prince's ring, c. 1330-1370 (also here and here )
Gold ring with a sapphire from the Colmar treasure, Alsace, second half of the 14th century
A man puts a ring on a woman's finger , Omne Bonum (British Library MS Royal 6 E. VI, fol. 104), c. 1360-1375
Sapphire and gold ring of William Wyrtlesey, Archbishop of Canterbury , c. 1362-1374 (use V&A Access to Images and search for Museum Number M.191-1975 )
Copper ring with the names of the Three Kings , last quarter of the 14th century, found in Lüneburg, Germany
Henry of Blois, Bishop of Winchester, holds a ring , The Golden Book of St. Albans (British Library MS Cotton Nero D. VII, fol. 87v), 1380
Gold ring with dragon's heads supporting a sapphire , Venice, c. 1380-1420
The Middleham ring , engraved with 12 esses and the word "Sovereynly" (see also the collars of esses ), c. 1380-1420
Gold ring with the Annunciation , inscribed "A VOUS MA GRE"; c. 1400, found in Suffolk
Gold ring , 15th century
A gold ring from Vienna, 15th century
Gold ring with several religious images engraved on the inside, 15th century
Gold ring with engraved figures of four saints (St. John the Baptist, St. Catherine, St. Barbara, and one unidentified), 15th century
Gold ring engraved with the faces of St. Barbara and John the Baptist, and inscribed with the words "Nul awt"; from Monkton, Pembrokeshire, 15th century
Gold ring engraved with the Virgin and Child with the words "en boen an" inscribed on the hoop; from Buckwell, Monmouthshire, 15th century
Silver-gilt ring with a relief figure of a saint (also here ), late medieval Sweden
Gold ring with the face of Jesus engraved on the bezel and an inscription on the interior (also here and here and here ), late medieval Sweden
Silver ring inscribed with a saint, found in Essex, 15th century
Silver signet ring found in Lincolnshire, c. 15th century
Three gold rings -- two posy rings (inscribed "mon cuer") -- found in East Sussex, 15th century
Silver posy ring (originally gilded), around the 15th century, found in Hampshire; inscribed "en bon an"
Gold posy ring set with a spinel, inscribed "pour amor say douc"
Copper alloy signet ring (with the Lombardic letter "H"), found in Worcestershire, c. 15th century
Gold ring with engraving, found near Saffron Walden, 15th century
Two gilt-copper rock crystal 15th century Italian rings (at left, with the heraldry of a prelate of the Della Rovere family; at right, with the heraldry of the Piccolomini family and the name of Pope Pius III)
Enamelled gilt-copper signet ring , 15th century
Gold ring with an engraved inscription (and a pyramid-shaped stone?), Rhine, 15th century
Gold signet ring with the arms of Lusignan on a sapphire , France, 15th century
Gold signet ring , Italy, 15th century (another view )
Bronze ring with an escutcheon , 15th century (also here )
Bronze ring , 15th century (another view )
Silver ring with the figures of St. Anne and the Virgin and Child with inscription, 15th-16th century
Silver ring engraved with a lion , 15th-16th century (flat , side , and side )
Gold ring with an enamelled portrait of John the Fearless, Duke of Burgundy , France, c. 1400-1425 (also a view of the interior & inscription , and additional views here and here )
Portrait of John the Fearless, Duke of Burgundy , first quarter of the 15th century
Polycrates throws away his ring , De casibus (BNF Fr. 226, fol. 100), first quarter of the 15th century
Portrait of a man holding a ring by Jan van Eyck, c. 1430
Portrait of a lady by Robert Campin, c. 1430
Portrait of Giovanni Arnolfini and his wife by Jan van Eyck, 1434 (see details of his hand and her hand )
Portrait of a man holding a carnation by Jan van Eyck, c. 1435
Portrait of Baudouin de Lannoy by Jan van Eyck, c. 1435
Portrait of Giovanni Arnolfini by Jan van Eyck, c. 1435
Portrait of Jan de Leeuw by Jan van Eyck, 1436
Portrait of Margareta van Eyck by Jan van Eyck, 1439
Portrait of a man by Rogier van der Weyden, 1440s
The Raglan ring (a gold signet ring), England, c. 1440-1475 (another view here , and an impression )
Portrait of a lady by Rogier van der Weyden, c. 1445
St. Eligius in his Workshop by Petrus Christus, 1449 (also here )
Signet ring , southern Europe, second half of the 15th century
Braided-gold ring , southern Germany, second half of the 15th century
Portrait of Philip the Good by Rogier van der Weyden, after 1450
Portrait of a gentleman by Andrea del Castagno, 1450s (also here ; see detail )
Portrait of a man and a woman by Fra Filippo Lippi, 1450s (also here )
Portrait diptych of Jean de Gros by Rogier van der Weyden, 1450s
Portrait of a lady by Rogier van der Weyden, c. 1455 (also here ; see detail )
Isabel of Portugal with St. Elizabeth by Petrus Christus, 1457-1460
Portrait of a young man by Petrus Christus, 1460
Portrait of Francesco d'Este by Rogier van der Weyden, c. 1460 (also here )
Portrait diptych of Philippe de Croy by Rogier van der Weyden, c. 1460
Portrait diptych of Laurent Froimont by Rogier van der Weyden, 1460s
Four rings in the Fishpool hoard , England, c. 1464: one set with a turquoise; one with an inscription; one with the figure of a saint and an inscription; and a signet ring
Portrait of a woman by Rogier van der Weyden, c. 1464
Portrait of Anthony of Burgundy by Hans Memling, c. 1467-1470
Portrait of Tommaso Portinari and his wife by Hans Memling, c. 1470 (also here and here )
Portrait of Ludovico Portinari by the Master of the Legend of St. Ursula, 1470s
Portrait of Jacques of Savoy by Hans Memling, 1470s
Portrait of an old woman by Hans Memling, c. 1470-1475
Portrait of Gilles Joye by Hans Memling, 1472
Portrait of Louis of Gruuthuse , c. 1472-1482
Detail from the Triptych with Jean de Witte and Maria Hoore , 1473
Portrait of a man holding a medal of Cosimo the Elder by Sandro Botticelli, c. 1474
Gyges and the magic ring , Facta et dicta memorabilia (BNF Fr. 289, fol. 316), second half of the 15th century
Portrait of a young man at prayer by Hans Memling, c. 1475
Portrait of Ursula Tucher by Michael Wolgemut, 1478
Portrait of a man with an arrow by Hans Memling, c. 1478-1480 (also here ; see detail )
Portrait of a man at a loggia by Hans Memling, c. 1480
Portrait of a man at prayer before a landscape by Hans Memling, c. 1480
Portrait of a young woman by Hans Memling, 1480
Portrait of a young man at prayer , 1480s
Portrait of Levinus Memminger by Michael Wolgemut, c. 1485
Donor portrait of Francesco Sassetti by Domenico Ghirlandaio, c. 1485
Portrait of Charles II of Bourbon by the Master of Moulins, c. 1485
Donor portrait by the Master of the Legend of St. Ursula, 1486
Diptych of Maarten Nieuwenhove by Hans Memling, 1487 (see detail )
Portrait of a young man at prayer by Hans Memling, c. 1487
Donor portrait by Hans Memling, c. 1490
Donor portrait by Hans Memling, c. 1490
Portrait of a man by Hans Memling, c. 1490
The ladies in the gallery present a ring to a knight , Perceforest/Anciennes Chroniques d'Angleterre (British Library MS Royal 19 E. II, fol. 129), end of the 15th century
Portrait of Gerolamo Casio by Giovanni Antonio Boltraffio, c. 1495
Portrait of a goldsmith by Gerard David, c. 1495-1500
Portrait of the artist and his wife , 1496
Portrait of a donor with Mary Magdalene by the Master of Moulins, c. 1498-1500
Portrait of Elizabeth Tucher by Albrecht Dürer, 1499
Silver signet ring engraved with the initials "W P," found in Worcestershire, 15th-16th century
Silver ring engraved with the initials "P L" on the bezel, found in Sussex, dated to late 15th or early 16th centuries
Portrait of Isabella of Portugal by Rogier van der Weyden, c. 1500
Bronze ring in the shape of a buckled collar , France, c. 1500 (also here )