Onyx Marquise Faceted Gemstone is available in all sizes from 6x3mm to 16x8mm. All the stones are cut & polished in Jaipur (India). Actual color of the stone may vary from the picture shown. Calibration will come approx (+-0.10mm). Other sizes and cutting are available on demand. For any other query or details, please write us at firstname.lastname@example.org.