珍珠项链 珍珠首饰 首饰加工 首饰DIY生产 不锈钢项链 首饰定制-中国品虹首饰厂家批发
-
Luster: 这 “soul” of a pearl lies in its iridescence. Luster grades are categorized as extremely strong, strong, medium, weak, and non-lustrous. A simple way to identify luster is to observe the pearl’s reflective surface—pearls with extremely strong luster will clearly mirror outlines, exuding a stunning sheen. The brighter the luster, the higher the price.
-
Blemishes: As the saying goes, “no pearl is completely flawless.” Pearls are formed by shellfish, so blemishes are common. Typical imperfections include growth lines, wrinkles, waistlines, pits, and spiral marks. Perfectly flawless pearls are extremely rare. The smoother and fewer blemishes on a pearl’s surface, 价值越高.
-
颜色: 珍珠有各种颜色, 具有丰富而美丽的光泽. 除了它们的基本体色, 珍珠还会呈现出次要颜色和光彩照人的光泽.
-
种类和尺寸:
由于不同贝类的产出，不同的珍珠品种大小各异:
- 阿古屋珍珠: 以卓越的光泽和光彩闻名, 尺寸在2–10毫米之间 (常见: 6–9毫米).
- 南洋白珍珠 (澳大利亚白珍珠): 高光泽, 尺寸8–19毫米 (常见: 9–15毫米).
- 南洋金珍珠: 表面光滑细腻, 尺寸8–19毫米 (常见: 9–15毫米).
- 大溪地珍珠: 主要为黑色, 尺寸8–18毫米 (常见: 8–13毫米).
- 淡水珍珠: 颜色和尺寸多样; 一些光泽高、无瑕疵的淡水珍珠可媲美海水珍珠, 尺寸2–18毫米 (常见: 2–15毫米).
- 形状: 根据传统市场标准, 更圆的珍珠通常价格更高. 然而, with evolving aesthetics, uniquely shaped pearls are gaining popularity.
In addition to the six key factors above, nacre thickness also affects a pearl’s appearance, though it cannot be judged by the naked eye. It must be measured by a certification institution and stated in the appraisal report. Longer cultivation times result in thicker nacre, making the pearls more durable and longer-lasting. 然而, proper daily maintenance also influences a pearl’s lifespan.
