Genuine crystal, genuine crystal choker, chic, luxury jewelry, women, fashion, purple ab2x A color easy to tune, bright, to wear in any situation! Length to the clasp: 30 cm + 5 cm of chain Width: 0.8 cm Material: crystal, rocailles, stainless steel primers guaranteed without nickel We call crystal, the glass whose refractive index is equal or higher than 1.545. Unlike glass, crystal has more clarity, more brightness.