James R. Moder Crystal Levels (in order of quality):

Strass® Crystal (-00): Manufactured by Swarovski in Austria, this is the finest Crystal in the world. Each Crystal, (over 12mm) has the distinctive Strass® laser-engraved Signature, identifying it as a genuine Strass® Crystal , which possesses superb optical clarity, purity and brilliance. With over 30% lead content, Strass® Crystals are machine-cut, polished and then given an invisible coating to make them stay clean longer and easier to keep clean.

Swarovski Spectra® Crystal (-11): An alternate quality from Swarovski. These precisely cut and polished Crystal prisms offer the high quality of Swarovski, at a price that reflects excellent value and a brand name.

Imperial Crystal (-22): This popular Crystal choice features a combination of high quality Crystal from some of these Crystal sources: Scholer from Austria, Asfour from Egypt, Preciosa from Czech Republic, various suppliers from Turkey, including Regal hand-cut and polished Crystal, Optic Crystal, and Crystal from other worldwide sources. Our Imperial Crystal is a combination of quality Crystal to achieve a superb look at an excellent price point.

Regal Crystal (-44): Hand-cut and polished by artisans in Europe and around the world, this Crystal trim is popular for those who appreciate fine hand craftsmanship at a moderate price point.

Budget Crystal (-33): Is produced by using traditional molding and fire or hand polishing techniques. This Crystal trim is good value allowing you to acquire a chandelier at a budget price.