钻石严选分和HCA

钻石最佳的黄金比例比较1Total Depth Percentage全深比575%63%钻石严选分和HCA，严选60%62 2Table Percentage 台宽比52%62%钻石严选分和HCA， 严选5558 3Crown Angle 冠角315365度钻石严选分和HCA，严选3435度 4Crown Height Percentage。...