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钻石—鉴定报告样本解读

钻石报告
比例尺寸
净度特征图
符号说明
红色符号代表钻石内部特征
绿色符号代表钻石外部特征
10月 XXXXX
October ******
IGI报告编号: *********
IGI Report Number
*********
描述: 天然钻石
Description
NATURAL DIAMOND
形状与切工: 圆形明亮式
Shape and Cutting Style
ROUND BRILLIANT
尺寸: 6.54 - 6.57 X 4.06 mm
Measurements
6.54 - 6.57 X 4.06 mm
评级结果

GRADING RESULTS

克拉重量(1克拉=0.2克): 1.07克拉
Carat Weight
1.07 CARAT
颜色等级: 无色
Color Grade
D
净度等级: 极微瑕级1
Clarity Grade
VVS 1
切工等级: 完美
Cut Grade
EXCELLENT
其他评级信息

ADDITIONAL GRADING INFORMATION

抛光: 完美
Polish
EXCELLENT
对称性: 完美
Symmetry
EXCELLENT
荧光: 无荧光
Fluorescence
NONE
激光刻字: IGI样本
Inscription(s)
IGI SPECIMEN
备注: 理想型圆形明亮式切工
Comments: IDEAL CUT ROUND BRILLIANT
10月 XXXXX
October *****
IGI报告编号: *********
IGI Report Number
*********
描述: 天然钻石
Description
NATURAL DIAMOND
形状与切割: 圆形明亮式
Shape and Cutting Style
ROUND BRILLIANT
尺寸: 6.54 - 6.57 X 4.06 mm
Measurements
6.54 - 6.57 X 4.06 mm
评级结果

GRADING RESULTS

克拉重量(1克拉=0.2克): 1.07克拉
Carat Weight
1.07 CARAT
颜色等级: 无色
Color Grade
D
净度等级: 极微瑕级1
Clarity Grade
VVS 1
切工等级: 完美
Cut Grade
EXCELLENT
其他评级信息

ADDITIONAL GRADING  INFORMATION

抛光: 完美
Polish
EXCELLENT
对称性: 完美
Symmetry
EXCELLENT
荧光: 无
Fluorescence
NONE
激光刻字: IGI样本
Inscription(s)
IGI SPECIMEN
备注: 理想型圆形明亮式切工
Comments: IDEAL CUT ROUND BRILLIANT

彩色宝石—鉴定报告样本解读

彩色宝石证书
11月 XXXXX

November *****

IGI报告编号
IGI Report Number
宝石种类: 天然刚玉
Species
NATURAL CORUNDUM
宝石名称: 蓝宝石
Variety
SAPPHIRE
形状和切工: 椭圆混合型切工
Shape and Cutting Style
OVAL MIXED CUT
重量: 4.36克拉
Weight
4.36 CARATS
尺寸: 9.93✖️7.93✖️6.03 mm
Measurements
9.93 X 7.93 X 6.03mm
颜色和透明度:艳蓝和透明
Color and Transparency
VIVID BLUE,TRANSPARENT
特征: 天然包裹体形态 无热处理痕迹
Characteristics
NATURAL INCLUSION(s) PATTERN.NO INDICATIONS OF HEATING
产地: 克什米尔
Country of Origin
KASHMIR
备注:在市场贸易中,可将此颜色称为“矢车菊蓝”
Comments:
This color can be called "Cornflower Blue" as trade term in the market
宝石种类和宝石名称
Species & Variety
根据宝石的基本化学成分和晶体结构,可以细分成不同种类;在一个特定的种类中,由于化学组成的轻微不同,可能会导致不同的颜色或种类。

光与宝石相互作用的方式,可能在不同种类的宝石中,呈现出不同形式的惊人光学现象,例如星光、猫眼效应或变色。

Gems may be classified in different species,according to their basic chemical composition and crystal structure;

the way that light interacts with the gem may create some astonishing optical phenomena such as a star,a cat's eye effect or change of color,in different varieties

透明度
Transparency
随着光线在宝石中传播,部分光线(如果不是全部)会被吸收,部分会透射出去。光线被吸收的越多,石头的透明度越低。
As light passes through a gemstone,part of it,if not all,will be absorbed,and part will be transmitted the more light that is absorbed the less transparent the stone will be.
特征
Characteristics
对宝石来说,内部特征就是它们的指纹。 宝石内部特征不仅提供了有关矿物形成时的重要信息,而且还在判别产地时提供了可能的地质或地理区域的相关信息。
Internal characteristics are the fingerprint of a gemstone. Not only do they provide essential information about the formation, but also the possible geological and geographical region where they originated from.Sometimes they also provide information about whether the gemstone has been treated.
折射率
Refractive Index
当光线先在空气中传播,然后进入一颗彩色宝石中,光线传播的速度会下降,因为传播媒介的不同。光线在空气中传播的速度, 与在其他介质中传播速度的比值,就是双折射率。
When light passes through air and enters a gemstone it slows down due to a difference in the medium. as The ratio between the speed of light in air and in a particular medium is known as the Refractive Index.
光学特征
Optic Character
决定了光线是如何在晶体中传播的。利用一系列特殊仪器,能够判别一颗石头是均质体还是非均质体,一轴晶还是二轴晶。
Determining how light travels through the crystal. Using a range of specialized instruments, we will be able to establish if the stone is isotropic or anisotopic,uniaxial or biaxial.
比重
Specific Gravity
比重是一个比值,用宝石在空气中的密度比上宝石在同等体积水中的密度。
Specific gravity is the ratio of the density of the gemstone to the density of an equal volume of water.
所有的IGI实验室都在使用各种各样的最先进的仪器,像傅立叶变换红外光谱仪(FTIR)和拉曼光谱仪,对于不同的宝石都能给出
相对应的独特图像。这些图像可以揭露一颗宝石的种类、处理,有时候,甚至是产地。
All IGI Laboratories employ a wide range of state of the art equipent,like FTIRand Raman spectrometers,all of which give a unique spectral grap for different gemstones. They can reveal the species of the gemstone,treatments,and at times,even the geographic origin.
光学性质和物理性质
OPTICAL and PHYSICAL PROPERTIES
折射率
Refractive Index
1.762 - 1.770
双折射率
Birefringence
0.008
光性特征:一轴晶
Optic Character
UNIAXIAL
光性符号:负光性
Optic Sign
-
比重
Specific Gravity
4.00
宝石的光学性质与物理性质皆为近似值
Optical and physical properties are approximate values
11月 XXXXX

November *****

IGI报告编号
IGI Report Number
宝石种类: 天然刚玉
Species
NATURAL CORUNDUM
宝石名称: 蓝宝石
Variety
SAPPHIRE
形状与切工类型: 椭圆混合型切工
Shape and Cutting Style
OVAL MIXED CUT
重量: 4.36克拉
Weight
4.36 CARATS
尺寸: 9.93✖️7.93✖️6.03 mm
Measurements
9.93 X 7.93 X 6.03mm
颜色和透明度:艳蓝,透明
Color and Transparency
VIVID BLUE,TRANSPARENT
特征: 天然包裹体形态 无热处理痕迹
Characteristics
NATURAL INCLUSION(s) PATTERN.NO INDICATIONS OF HEATING
产地: 克什米尔
Country of Origin
KASHMIR
备注:在市场贸易中,可将此颜色称为“矢车菊蓝”
Comments:
This color can be called "Cornflower Blue" as trade term in the market

成品首饰—鉴定报告样本解读

首饰证书
IGI报告编码
IGI Report Number
11月:XXXXX

November *****

报告描述
Description of Article
一对铂金和白金耳饰,内侧刻有“WINZA Au750 PT950 d4.208ct E2.59ct 2.46ct”
One Platinum & White Gold Pair of Earrings, Engraved "WINZA Au750 PT950 d4.208ct E2.59ct 2.46ct"
总重11.13克,包括
weighing in total 11.13 g., containing
2颗祖母绿
Two (2) Emeralds
总估重:5.05克拉
Total Estimated Weight: 5.05 Carats
and
2颗红宝石
Two (2) Rubies
总估重:1.016克拉
Total Esimated Weight: 1.016 Carat
and
42颗天然钻石
Forty Two (42) Natural Diamonds
总估重:4.02克拉
Total Esimated Weight: 4.02 Carats
两颗(2)方形垫型改良式明亮式红宝石
TWO (2) SQUARE CUSHION MODIFIED BRILIANT RUBIES
宝石种类:天然刚玉
Species
: Natural Corundums
每颗尺寸:4.53 X 4.51 mm & 4.41 X 4.38 mm
Measurements Each
: 4.53 X 4.51 mm
   & 4.41 X 4.38 mm
总估重:41.016克拉
Total Estimated Weight
: 41.016Carat
颜色/透明度:红色/透明
Color/Transparency
: Red,Transparent
特征:4天然包裹体形态
Characteristics
: Natural inclusion(s)pattern.
评论:优质颜色品质
Comments
: Fine Color Quality
镶嵌条件下完成鉴定与分级宝石尺寸为预估值
Grading & Identification of origin as mounting permits.Measurement approx.
24颗圆形明亮式天然钻石
TWENTY FOUR (24) ROUND BRILLIANT NATURAL DIAMONDS
总估重:3.60克拉
Total Estimated Weight
: 3.60Carats
两颗(2)祖母绿形切工祖母绿
TWO (2) EMERALD CUT EMERALDS
宝石种类:天然绿柱石
Species
: Natural Beryls
测量数据:每颗尺寸9.17 X 7.97 mm & 9.22 X 7.97 mm
Measurements Each
: 9.17 X 7.97 mm
   & 9.22 X 7.97 mm
每颗估重:2.59和2.46克拉
Estimated Weight Each
: 2.59 & 2.46 Carats
总估重:5.05克拉
Total Estimated Weight
: 5.05Carat
颜色/透明度:艳绿/透明
Color/Transparency
: Vivid Green,Transparent
特征:天然包裹体特征
Characteristics
: Natural inclusion(s)pattern
产地:巴基斯坦
Orighin
: Pakistan
评论:优质颜色品质,无油
Comments
: Fine Color Quality Non oil
16颗圆形明亮式天然钻石
SIXTEEN(16)ROUND BRILLIANT NATURAL DIAMONDS
总估重:0.10克拉
Total Estimated Weight
: 0.10Carat
两颗(2)梨型明亮式钻石
TWO(2)PEAR BRILLIANT NATURAL DIAMONDS
总体估重:0.50克拉
Total Estimated Weight
: 0.50Carat
IGI报告编码
IGI Report Number
11月: XXXXX

November *****

报告描述
Description of Article
一对铂金和白金耳饰,内侧刻有“WINZA Au750 PT950 d4.208ct E2.59ct 2.46ct”
One Platinum & White Gold Pair of Earrings, Engraved "WINZA Au750 PT950 d4.208ct E2.59ct 2.46ct"
总重11.13克,包括
weighing in total 11.13 g., containing
2颗祖母绿
Two (2) Emeralds
总估重:5.05克拉
Total Estimated Weight: 5.05 Carats
and
2颗红宝石
Two (2) Rubies
总估重:1.016克拉
Total Esimated Weight: 1.016 Carat
and
42颗天然钻石
Forty Two (42) Natural Diamonds
估重:4.02克拉
Total Esimated Weight: 4.02 Carats

培育钻石—鉴定报告样本解读

培育钻石报告
报告样本
比例尺寸
分级体系
颜色分级体系
净度分级体系
腰部描述:中等到微厚(刻面腰)
冠高比:14.5%
亭深比:43%
台宽比:58.5%
冠角:35°
亭角:40.7°
全深比:61.3%
底部描述:尖锐
净度特征图
符号说明
红色符号代表钻石内部特征
绿色符号代表钻石外部特征
放大图例
激光刻字腰码图
10月 XXXXX
October ******
IGI报告编号: *********
IGI Report Number
*********
形状与切工类型: 圆形明亮式
Shape and Cutting Style
ROUND BRILLIANT
尺寸: 7.33 - 7.35 X 4.49 MM
Measurements
7.33 - 7.35 X 4.49 MM
分级结果

GRADING RESULTS

克拉重量: 1.50克拉
Carat Weight
1.50 CARAT
颜色等级: 无色
Color Grade
D
净度等级: 极微瑕级1
Clarity Grade
VVS 1
切工等级: 理想型
Cut Grade
IDEAL
其他评级信息

ADDITIONAL GRADING INFORMATION

抛光等级: 完美
Polish
EXCELLENT
对称性等级: 完美
Symmetry
EXCELLENT
荧光: 无荧光
Fluorescence
NONE
腰部激光刻字: IGI样本
Inscription(s)
IGI SPECIMEN
备注:原生晶体-无后期处理,该实验室培育钻石由高温高压法(HTHP)制成
Comments: As Grown - No indication of post growth treatment This L aboratory Grown Diamond was created by high pressure hight temperature process (HPHT)
10月 XXXXX
October *****
IGI报告编号: *********
IGI Report Number
*********
形状与切工类型: 圆形明亮式
Shape and Cutting Style
ROUND BRILLIANT
尺寸: 7.33 - 7.35 X 4.49 MM
Measurements
7.33 - 7.35 X 4.49 MM
评级结果

GRADING  RESULTS

克拉重量: 1.50克拉
Carat Weight
1.50 CARAT
颜色等级: 无色
Color Grade
D
净度等级: 极微瑕级1
Clarity Grade
VVS 1
切工等级: 理想型
Cut Grade
IDEAL
其他评级信息

ADDITIONAL GRADING  INFORMATION

抛光: 完美
Polish
EXCELLENT
对称性: 完美
Symmetry
EXCELLENT
荧光: 无
Fluorescence
NONE
腰部激光刻字: IGI样本
Inscription(s)
IGI SPECIMEN
备注: 原生晶体-无后期处理,该实验室培育钻石
由高温高压法(HTHP)生长
Comments: As Grown - No indication of post growth treatment This L aboratory Grown Diamond was created by high pressure hight temperature process (HPHT)