PURPOSE: A resinous ornament excellent in strength, hardness, heat resistance, etc., and suitable as an imitation jewel, obtained by mixing a spiran resin with benzoin ethyl other, either molding the mixture into a desired shape or applying it to the surface of an object to be ornamented and photo-curing the molding or the coating.

CONSTITUTION: A base 1 is made by, for example, molding a mixture of procelain clay, ground paper, water, diatmaceous earth, etc., into a desired shape. An ornament layer 2 is formed on the base 1 by ornamenting it with, for example, a water color mixed with a metallic powder, a photopolymer paste obtained by mixing 10pts.wt. spiran resin with 0.2W2pts.wt. benzoin ethyl ether is applied to the ornament layer 2, and then photocured to form a photopolymer layer 3. The purpose resinous ornament is thus produced. Alternatively, the above photopolymer paste is molded into a long flattened sphere and photo- cured to produce a resinous ornament 4 having a jewel-like gloss and color.