彩色钻石鉴定证书详解
The GIA certificate is divided into the following sections:
证书签发日期:X月X日XX年
Report Type: 证书的编码:GIAXXXXXX,类似身份证号,每一颗钻石编码是独有的
Shape and Cutting Style: 钻石的琢型:圆形、椭圆形、心形、公主形、方形等等
Measurements: 钻石的尺寸:异形钻石 (长X宽X高) ,圆形钻石 (最大直径X最小直径X全深)
Color Grade: 颜色等级,Fancy Vivid Purplish Pink,中文为艳彩紫粉,颜色等级由亮度+饱和度+次色调+主色调组成。 GIA颜色评定系统是建立在孟塞尔均匀颜色空间,共有27个色调和9个亮度/ 饱和度级别(Faint、 Very light、Light、Fancy light、 Fancy、 Fancy dark、 Fancy intense、 Fancy deep、Fancy vivid )。
Color Origin: 颜色来源,GIA的来源描述主要有以下三种:
- Natural 天然色
- Treated 处理过的(包括:Artificially Irradiated 辐照改色和 HPHT processed 高温高压处理)
- Undetermined 无法确定颜色来源
Color Distribution: 颜色分布,Even指分布均匀,Not Applicable(不适用), 一般会描述在LIGHT颜色级别以下的粉色、蓝色、绿色的彩色钻石的颜色分布。
Clarity Grade:钻石的净度:与白钻的评级相同,分为FL IF VVS1 VVS2 VS1 VS2 SI1 SI2 I1 I2 I3。
Symmetry:对称性
Fluorescence:荧光
Inscription(s):钻石的激光字印,此证书的粉钻有原产地阿盖尔的证书编号激光印记。
Comments:备注
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