Material: mother of pearl/ nacre/ pinctada maxima; Source: australia/ indonesia/ philippines; Usage: for watch dial/ for dial repair; Diameter: 5.0mm – 30.0mm; tolerance: +0.03mm/-0.00mm; Thickness: 0.20mm – 0.60mm; tolerance: +0.02mm/-0.00mm; Finishing: polish/ sand blast/ paint; Quality: aaa grade; Moq: 10pcs (exw);