Diamonds are a precious gemstone that is often used in jewelry and other decorative items. As such, there are many substitutes for diamonds that can be used to achieve a similar look without the cost. Rhinestone, Pinchrne, ZIRCON, Pinchhitter, and Reliefpitcher are all diamond substitutes that can be used in place of diamonds. Rhinestone is a 10 letter word that refers to a type of artificial gemstone made from glass or acrylic. Pinchrne is an 8 letter word that is a type of synthetic diamond made from zirconium oxide. ZIRCON is a 6 letter word that is a natural gemstone that is often used as a diamond substitute. Pinchhitter is an 11 letter word that is a type of artificial diamond made from cubic zirconia. Reliefpitcher is a 13 letter word that is a type of artificial diamond made from a combination of zirconium oxide and silicon carbide.