Auctions of art from India and the Islamic world are among my favorites. So many objects are exquisitely made, bursting with color and historically compelling. These regions will lead at London auction houses next week as painting, calligraphy, pottery, metalwork, glass, ornate weapons, textiles, jewelry and coins go under the hammer.

Morton & Eden, in association with Sotheby's, will hold a 164-lot sale of Islamic coins on Monday. The auction will be headed by a gold dinar...