THE MATERIAL LIBRARY
Plastic
A manufactured polymer or resin decorative material.
Colors & patterns
Any color, clear or opaque, often made to imitate stone.
Typical origins
Made worldwide; the manufacturer determines its production origin.
Hardness
Varies with the polymer
Choosing & setting this material
Light weight can suit larger earrings or costume pieces. Ask whether it is acrylic, resin or another polymer, and whether a surface coating affects its care.
Care & cleaning
Wipe gently with a soft, slightly damp cloth and dry promptly. Avoid soaking, acids, solvents, steam and ultrasonic cleaning. Store separately to protect the surface.
Origins above describe typical sources of the material, not the origin of an illustrated or stocked stone. Hardness measures scratch resistance, not resistance to breaking. Confirm the identity and treatments of the actual piece.
Further reading: Material reference · GIA: gem treatments