Jewellery Sizes EARRINGS Each model has both a crystal and zirconium width and a total length and width at its widest point. RINGS Dimensions are shown in the US size chart. BROCHURE The length and width are specified for each model. NECKLACES The length and width are specified for each model. For several models, the length is adjustable, this is indicated for the specific model. BRACELETS The length and width are specified for each model. For several models, the length is adjustable, this is indicated for the specific model.