珠宝首饰是用各种宝石、珍珠、象牙、翡翠、钻石等稀有名贵物质经磨制、雕琢、镶嵌、精串而成的饰物品。 天然珠宝光泽自然、素雅,颜色不均匀,质地透明。而色彩美丽的人造含铝玻璃,合成红宝石、蓝宝石、金钢钻之类人工加工的合成珠宝,颜色均一,色泽浓艳,线条棱角圆钝粗俗。天然珠宝表面光洁,折光性强、线 Jewelry is a variety of precious stones, pearls, ivory, jade, diamonds and other rare and valuable material after grinding, carving, inlaid, fine string made of decorative items. Natural natural jewelery, elegance, uneven color, texture and transparency. The beautiful color of man-made aluminum-containing glass, synthetic ruby, sapphire, diamond-like artificial processing of synthetic jewelry, uniform color, rich color Yan, obtrusive and vulgar lines. Natural jewelry surface smooth, strong refractive, line