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GIA-2131436884 0.31 D VS2 EX/EX/EX
GIA-1146037566 0.31 D VS2 EX/EX/EX
GIA-2141056914 0.32 D VS2 EX/EX/EX
GIA-6147005810 0.32 D SI2 EX/EX/EX
GIA-1118927243 0.31 E VVS2 EX/EX/EX
GIA-1119590055 0.30 E VVS2 EX/EX/EX
GIA-2126978957 0.30 E SI2 EX/EX/EX
GIA-2131431972 0.30 F VS2 EX/EX/EX
GIA-5136106277 0.30 F SI1 EX/EX/EX
GIA-6135331515 0.31 F SI2 EX/EX/EX
GIA-2145621268 0.32 F SI2 EX/EX/EX
GIA-5136065282 0.37 G VS2 EX/EX/EX
GIA-1129723515 0.38 G VS2 EX/EX/EX
GIA-5126033409 0.30 H VS2 EX/EX/EX
GIA-2141055957 0.30 H VS2 EX/EX/EX
GIA-1146108206 0.30 H VS2 EX/EX/EX
GIA-2126715595 0.31 H VS2 EX/EX/EX
GIA-5126180488 0.33 H VS2 EX/EX/EX
GIA-5126719042 0.37 H SI1 EX/EX/EX
GIA-2141048524 0.37 H SI1 EX/EX/EX
GIA-1136358580 0.35 H SI2 EX/EX/EX
GIA-2136116640 0.34 H SI2 EX/EX/EX
GIA-2136289757 0.30 H SI2 EX/VG/EX
GIA-5136290433 0.30 H SI2 EX/VG/EX
GIA-2136240525 0.30 H SI2 EX/VG/EX
GIA-2136286710 0.30 H SI2 EX/VG/EX
GIA-5136219588 0.30 H SI2 EX/EX/VG
GIA-2136330958 0.30 H SI2 EX/VG/EX
GIA-2136241312 0.30 H SI2 EX/VG/VG
GIA-5136331056 0.31 H SI2 EX/VG/EX
GIA-5136312195 0.31 H SI2 EX/VG/EX
GIA-5136116277 0.31 H SI2 EX/VG/EX
GIA-1139240508 0.32 H SI2 EX/VG/EX
GIA-2136215825 0.32 H SI2 EX/VG/EX
GIA-2136290761 0.34 H SI2 EX/VG/EX
GIA-2136043794 0.35 H SI2 EX/VG/EX
GIA-2136311523 0.36 H SI2 EX/VG/VG
GIA-5136240199 0.37 H SI2 EX/EX/EX
GIA-5136241464 0.30 J SI2 EX/EX/EX
GIA-1139219623 0.36 J SI2 EX/VG/VG
GIA-2131544251 0.37 H SI2 EX/EX/EX
GIA-5126240429 0.31 I VS2 EX/EX/EX
GIA-1129218241 0.31 I VS2 EX/EX/EX
GIA-5126128994 0.31 I VS2 EX/EX/EX
GIA-1139144520 0.31 I SI1 EX/EX/EX
GIA-5136085054 0.30 I SI2 EX/EX/EX
GIA-6147029299 0.34 I SI2 EX/EX/EX
GIA-5126970240 0.31 I SI2 EX/EX/EX
GIA-5136003605 0.36 J SI1 EX/EX/EX
GIA-2136340269 0.40 E SI2 EX/EX/EX
GIA-1136427139 0.41 F SI2 EX/EX/EX
GIA-5136360390 0.40 G VS2 EX/EX/EX
GIA-2131765691 0.41 G SI2 EX/EX/EX
GIA-2126937969 0.40 G SI2 EX/EX/EX
GIA-2136036422 0.42 G SI2 EX/EX/EX
GIA-2136232194 0.40 H VS2 EX/EX/EX
GIA-2136340201 0.42 H VS2 EX/EX/EX
GIA-2126727176 0.40 H VS2 EX/EX/EX
GIA-2116958090 0.40 H VS2 EX/EX/EX
GIA-6122908256 0.44 H SI1 EX/EX/EX
GIA-1146037166 0.41 H SI1 EX/EX/EX
GIA-1129691605 0.42 H SI2 EX/EX/EX
GIA-2121943488 0.41 I VVS2 EX/EX/EX
GIA-6147111027 0.40 I VS2 EX/EX/EX
GIA-1139044955 0.41 I SI2 EX/EX/EX
GIA-1129396861 0.40 J SI1 EX/EX/EX
GIA-1129563392 0.51 D VS2 EX/EX/EX
GIA-1136451447 0.51 D VS2 EX/EX/EX
GIA-2136085395 0.50 D SI2 EX/EX/EX
GIA-1139359859 0.50 E VS2 EX/EX/EX
GIA-2126980751 0.51 E VS2 EX/EX/EX
GIA-1127589803 0.50 E VS2 EX/EX/EX
GIA-2126936278 0.50 E SI1 EX/EX/EX
GIA-2126178891 0.51 E SI1 EX/EX/EX
GIA-5141641062 0.50 E SI2 EX/EX/EX
GIA-1136540009 0.52 E SI2 EX/EX/EX
GIA-1136761132 0.50 F VS2 EX/EX/EX
GIA-1129964727 0.50 F VS2 EX/EX/EX
GIA-1129976198 0.51 F VS2 EX/EX/EX
GIA-2136260986 0.52 F VS2 EX/EX/EX
GIA-2126812168 0.56 F VS2 EX/EX/EX
GIA-1139162281 0.51 F SI2 EX/EX/EX
GIA-2116909595 0.50 G VVS2 EX/EX/EX
GIA-6147029318 0.57 G VS2 EX/EX/EX
GIA-5136324972 0.50 G VS2 EX/EX/EX
GIA-2136370456 0.50 G VS2 EX/EX/EX
GIA-1129331338 0.50 G SI1 EX/EX/EX
GIA-2141050950 0.50 G SI2 EX/EX/EX
GIA-5126220200 0.51 H VVS2 EX/EX/EX
GIA-1146615442 0.50 H VS2 EX/EX/EX
GIA-1139324650 0.51 H VS2 EX/EX/EX
GIA-5136325709 0.52 H VS2 EX/EX/EX
GIA-2131452222 0.50 H SI1 EX/VG/EX
GIA-2136027508 0.51 H SI1 EX/EX/EX
GIA-2126903184 0.59 H SI1 EX/EX/EX
GIA-1139245148 0.51 H SI2 EX/VG/EX
GIA-1146417350 0.51 H SI2 EX/EX/EX
GIA-2136061628 0.50 H SI2EX/EX/EX
GIA-2126289199 0.51 I VS1 EX/EX/EX
GIA-2136060704 0.50 I VS2 EX/EX/EX
GIA-1129973252 0.50 I VS2 EX/EX/VG
GIA-2136060516 0.51 I VS2 EX/EX/EX
GIA-5126282455 0.50 I SI1 EX/VG/VG
GIA-2141053211 0.50 I SI2 EX/EX/EX
GIA-1129988458 0.50 I SI2 EX/VG/EX
GIA-2136029909 0.51 I SI2 EX/EX/VG
GIA-5126973360 0.50 J VS2 EX/EX/EX
GIA-2136029937 0.51 J VS2 EX/EX/EX
GIA-1129989218 0.50 J VS2 EX/EX/EX
GIA-5116369251 0.60 D SI1 EX/EX/EX
GIA-2141104264 0.65 D SI2 EX/EX/EX
GIA-2141181512 0.60 E VS2 EX/EX/EX
GIA-6137033485 0.62 E SI1 EX/VG/VG
GIA-1129216278 0.62 G VS2 EX/EX/EX
GIA-2126760075 0.60 G SI1 EX/EX/EX
GIA-5136384826 0.61 G SI2 EX/EX/EX
GIA-2131069925 0.61 H VVS2 EX/EX/EX
GIA-5136204553 0.62 H SI2 EX/EX/EX
GIA-1119781865 0.61 I VVS2 EX/EX/EX
GIA-2136126773 0.60 I VS2 EX/EX/EX
GIA-5126342425 0.60 I VS2 EX/EX/EX
GIA-5126113504 0.60 I VS2 EX/EX/EX
GIA-2136221963 0.60 J VS2 EX/EX/EX
GIA-2136081196 0.61 J VS2 EX/EX/EX
GIA-1139191391 0.63 J VS2 EX/EX/EX
GIA-2126540762 0.70 D SI2 EX/EX/EX
GIA-5126921450 0.71 D SI2 EX/EX/EX
GIA-2136028237 0.72 E SI1 EX/EX/EX
GIA-2126772135 0.72 F VS2 EX/EX/EX
GIA-2136220217 0.70 F SI2 EX/EX/EX
GIA-2126712616 0.71 G VS2 EX/EX/EX
GIA-2126762764 0.71 G VS2 EX/EX/EX
GIA-2131832041 0.72 G SI2 EX/EX/EX
GIA-5126084265 0.70 H VS2 EX/EX/EX
GIA-2126900161 0.71 H SI1 EX/EX/EX
GIA-2131404394 0.71 H SI1 EX/EX/VG
GIA-2126066941 0.70 H SI2 EX/EX/EX
GIA-2131182512 0.71 I VS2 EX/EX/EX
GIA-1136288335 0.72 I VS2 EX/EX/EX
GIA-2126689587 0.70 I SI2 EX/EX/EX
GIA-2136265193 0.70 J SI2 EX/EX/EX
GIA-5126202777 0.83 H SI1 EX/EX/EX
GIA-2131951445 0.81 H SI2 EX/EX/EX
GIA-5126249239 0.86 I VS2 EX/EX/EX
GIA-2126502096 0.87 I VS2 EX/EX/EX
GIA-2126475148 0.81 I VS2 EX/EX/EX
GIA-2131958968 0.81 I SI1 EX/EX/EX
GIA-2131855271 0.80 I SI2 EX/EX/EX
GIA-6147389851 1.21 D IF EX/EX/EX
GIA-2136097320 1.23 D IF EX/EX/EX
GIA-5136303024 1.02 D VS2 EX/EX/EX
GIA-2136032755 1.01 E VVS2 EX/EX/EX
GIA-2126987004 1.02 E VVS2 EX/EX/EX
GIA-7136120658 1.01 E SI2 EX/EX/EX
GIA-2136329737 1.03 F VVS2 EX/EX/EX
GIA-2136341689 1.03 F VVS2 EX/EX/EX
GIA 2136329737 1.03 F VVS2 EX/EX/EX
GIA 2136341689 1.03 F VVS2 EX/EX/EX
GIA-2136259704 1.01 F VS2 EX/EX/EX
GIA-2126873289 1.01 G VVS2 EX/EX/EX
GIA-2136197770 1.08 G VS1 EX/EX/EX
GIA-6135443089 1.00 G VS1 EX/EX/EX
GIA-1139258540 1.06 G VS1 EX/EX/EX
GIA-5126964932 1.02 G VS2 EX/VG/EX
GIA-6147354582 1.03 G VS2 EX/VG/EX
GIA-2116785406 1.16 H VVS2 EX/EX/EX
GIA-2136184272 1.01 H VVS2 EX/EX/VG
GIA-1146562619 1.05 H VVS2 EX/EX/EX
GIA-2126983709 1.02 H VS2 EX/EX/EX
GIA-2136110388 1.01 H VS2 EX/EX/EX
GIA-1139110614 1.01 H VS2 EX/EX/EX
GIA-5136382829 1.01 H VS2 EX/EX/EX
GIA-1137359338 1.01 H VS2 EX/EX/EX
GIA-6132359864 1.02 H VS2 EX/EX/EX
GIA-7132359897 1.02 H VS2 EX/EX/EX
GIA-1139377462 1.01 H SI2 EX/EX/EX
GIA-5136184115 1.21 H SI2 EX/EX/EX
GIA-2136120298 1.01 I VS2 EX/EX/EX
GIA-1136284745 1.20 I VS2 EX/EX/EX
GIA-2136411355 1.02 I SI2 EX/EX/EX
GIA-6147309445 1.07 J VVS2 EX/VG/VG
GIA-2136074298 1.11 J VVS1 EX/EX/EX
GIA-5131416488 1.15 J VS2 EX/EX/EX
GIA-6147202766 1.01 J VS2 EX/EX/EX
GIA-1139156365 1.03 J SI1 EX/EX/EX
GIA-5126611911 1.06 J SI1 EX/EX/EX
GIA-2141631228 1.02 J SI2 EX/EX/EX
GIA-5126994475 1.50 H VS2 EX/EX/EX
GIA-2131609074 1.51 J VVS2 VG/EX/EX
GIA-2125824580 2.01 G VS2 EX/EX/EX
GIA-1122338559 2.00 H VVS2 EX/EX/EX
GIA-2116397133 2.01 H VS1 EX/EX/VG
GIA-1138159087 2.01 H VS2 EX/EX/EX
GIA-5136415083 2.01 H VS2 EX/EX/EX
GIA-2136222610 2.01 J VS2 EX/EX/EX
GIA-7121519257 2.33 K VVS1 EX/EX/EX
GIA-2131159878 3.01 H VVS2 EX/EX/EX
GIA-2136051279 3.01 J VS2 EX/EX/EX
异形
GIA-6137643388 1.02 F VVS2 公主方
GIA-2145312470 1.05 I SI1 桃心
GIA-17180819 3.03 H VS2 祖母绿
彩钻
GIA-2111712379 0.56 FIY SI1 祖母绿
GIA-6127591057 0.53 FDBGY VS1 祖母绿
GIA-2121584214 1.03 FLY VVS2 公主方
GIA-5121956277 1.22 FGY VS2 蕾蒂恩
GIA-2135890221 1.66 FLY VS2 蕾蒂恩
GIA-5131722121 1.80 FY VS1 蕾蒂恩
GIA-6127749562 3.06 FY SI1 蕾蒂恩
GIA的贡献
1. GIA是钻石4C的创始者
2. GIA是现代珠宝显微镜的发明者
3. GIA拥有全球最大的宝石学图书馆
4. GIA是全球最被信赖的钻石分级者之一
5. GIA是研究宝石学家G.G.课程的起源地
6. GIA是国际钻石分级系统的共同发源地
7. GIA的教育文凭被全世界所接受
4C
1.Carat Weight:钻石重量
2.Color Grade:钻石颜色
3.Clarity Grade:钻石净度
4.Cut Grade:钻石切工
附加信息
1.Clarity Characteristics:包裹体,一些天然钻石的内部特征,比如crystal小晶体、cloud云雾状包裹体等,这些是在显微镜下才可以发现的内部特征,用来证明钻石的天然性。
2.Finish:修饰度,也就是钻石切割完成后对钻石美丽程度的修饰,生活化一点就是化妆做发型这样的类型,比不上Cut切工这样主身材的重要,但是如果修饰度好一些,也会增加钻石的美感。
修饰度分为2个方面:
A、Polish:抛光,抛光会增加钻石的亮度。但有一些钻石有天然的特征,比如原始晶面等,是不能被抛光掉的。所以如果是这样的天然情况,对抛光也不要太苛求。
B、Symmetry:对称性,对称就是一颗钻石左右切割得是否对称,因为所有钻石都有最大和最小的直径,所以没有一颗钻石是完全对称的。
3.Fluorescence:荧光,钻石有荧光是自然现象,蓝色的荧光可以增强钻石的亮白度,黄色的荧光可以降低,所以带荧光的钻石也要看哪一种光,有荧光也无妨,也许会更让钻石更加漂亮。
切工图示
普通的消费者只需要看GIA评价出的Cut Grade就可以,其实这些复杂的数据GIA已经将它们总结概括成为综合的切工评价。 最后再右边一栏,是公司用的,一半是供货公司的存根,一半是销售公司的存根,跟最终顾客没有关系。
1.Carat Weight:钻石重量。0.33 carat。Carat是钻石重量单位,中文叫“克拉”。1克=5克拉,1克拉=100分。GIA计算到小数点后2位,第三位逢9进一,比如32.89算32分,32.9算33分;
2.Color Grade:钻石颜色。G是本钻颜色。宝石级白色钻石是从D色开始到Z色的,知识可以参考《钻石颜色分级》和《专家教你挑钻石颜色》。另外粉红等什么的颜色叫彩色钻石,比如Fancy pink。彩钻也有很多级别,以后会有文章详细介绍。
3.Clarity Grade:钻石净度。VVS2是本钻净度。也就是10倍放大镜下钻石的内涵物的多少。GIA将钻石净度分为FL、IF、VVS1-VVS2、VS1-VS2、SI1-SI2-SI3、I1-I2-I3等级别,从前到后依次降低,一般我们觉得佩带的高性价比是VS1-VS2这一档,收藏是IF这一档比较合适,如果是戴着玩,那么SI的也可以,但是国内我们建议买SI的买国内证书,要少很多钱;知识可以参考《净度等级》和《专家教你挑钻石净度》。
4.Cut Grade:钻石切工。这是新加的一个综合评价,看4C的切工就看这个拉!其实是很多指标的综合衡量,也包括对称性和抛光性。Excellent是本钻切工。知识可以参考《专家教你挑钻石切工》 《配合GIA数据库看钻石切工》
Clarity Characteristics:包裹体。一些天然钻石的内部特征,比如crystal小晶体、cloud云雾状包裹体等,这些是在显微镜下才可以发现的内部特征,但也会影响光的折射进而影响钻石的品质,此项用来证明钻石的天然性;以便更好的检验其真假,严选其品质.
2.Finish:修饰度。也就是钻石切割完成后对钻石美丽程度的修饰,生活化一点就是化妆做发型这样的类型,比不上Cut切工这样主身材的重要,但是如果修饰度好一些,也会增加钻石的美感。修饰度分为2个方面:
A、Polish:抛光。抛光会增加钻石的亮度。但有一些钻石有天然的特征,比如原始晶面等,是不能被抛光掉的。所以如果是这样的天然情况,对抛光也不要太苛求。
B、Symmetry:对称性。对称就是一颗钻石左右切割得是否对称,因为所有钻石都有最大和最小的直径,所有没有一颗钻石是完全对称的。对称性在GOOD以上就有可能会出现八心八箭效应,但并不代表八心八箭就是好切工,记住它仅仅是个特殊效应而已。
3.Fluorescence:荧光。钻石有荧光是自然现象,蓝色的荧光可以增强钻石的亮白度,黄色的荧光可以降低,所以带荧光的钻石也要看哪一种光,有荧光也无妨,也许会更让钻
为什么要选择GIA等国际认证
GIA在国际上最早提出钻石4C的概念,在同业内具有标杆地位。包括GIA在内的世界各钻石鉴定机构联合努力,经过数十年的摸索和实践后最终形成了现在通行的国际钻石鉴定标准。钻石品质鉴定证书千百种,而全球钻石业者公认最具公正、客观、严谨的除了美国GIA、比利时IGI外, 尚有美国AGS、日本CGL…等。其它大多数鉴定单位较为松散,甚至是接受业者要求胡乱提升级数,这些行为严重损害了消费者利益,影响了消费者信心。
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