钻石净度分级表有哪些？

国际上常用的净度分级体系为GIA分级，它将钻石净度分为六个类型，11个等级：无瑕级FL、内部无瑕级IF、极轻微瑕级VVS 、轻微内含级VS、微内含级SI、内含级I。

影响其等级的瑕疵分为二者，内部的瑕疵称为内含物（英语：inclusion ），表面的缺陷称为表面瑕疵（英语：blemish ）。评鉴钻石净度的准则，包括了上述瑕疵的数量、大小、种类、位置、明显度等对钻石整体外观的影响程度。钻石净度的评级必须在十倍放大镜（Triplet lens）检视下进行。

净度等级越高，钻石的价格也就随之增高。此外，内含物记载钻石形成时的地质环境，并可作为分辨真伪、天然或合成钻石的依据。

扩展资料

1、无瑕级——FL

FL级别属于在10倍放大镜下都看不到任何内含物和瑕疵的钻石，这种级别的钻石非常罕见，所有钻石中只有不到1％的无暇级，因此FL级别的钻石通常克拉数都不大，并且价格昂贵。

2、内无瑕级——IF

IF级别是指用十倍的放大镜看不到内含物，但是表面可能会看到一些微小的瑕疵，但这种瑕疵可以通过某种方法去除，这类钻石也属于稀有物品。

3、极小瑕疵级——VVS

VVS级别的钻石虽然内部含有杂质，但是在10倍的放大镜下也很难看清，VVS又分为VVS1和VVS2两个级别，VVS2级别的钻石内部所含物质更多一些。这种钻石比较具有收藏价值，大概有21％的用户会选择。

4、微瑕级——VS

VS级别的钻石在十倍的放大镜下可以看到一些微小的内含物，VS同样细分为VS1和VS2，VS2中含有的物质更多一些。由于VS中含有的杂质并不多，且价格比VVS便宜很多，这个级别的性价比更高，很多人购买求婚钻戒时都会选择此级别的钻石。

5、小瑕疵级——SI

这个级别的钻石在十倍放大镜下很容易能看到内含物，SI1中的瑕疵不容易用肉眼看到，SI2从顶部或者从锥形部位较低处用肉眼可以看到杂质。

6、有瑕级——I

I1用肉眼可以看到一些比较小的内含物，I2和I3所包含的物质更多，这个级别的钻石杂质比较多，而且用肉眼就能看到，所以一些知名的珠宝品牌不提供这类物品。

1993年DTC通过香港的奥美广告公司，征集“A diamond is forever”的中文翻译，经过半年的评比，一名大学教师的一句话被选上，于是“钻石恒久远，一颗永流传”这句经典的广告语成功的进入中国。

“A diamond is forever”这句广告词是戴比尔斯公司在1939年所用的广告词。

戴比尔斯（英语：De Beers）是世界钻石业的卡特尔、跨国公司，一条龙主宰了全球4成的钻石开采和贸易。戴比尔斯在1888年被塞西尔·罗德斯创办，现公司总部在卢森堡，是一家私人公司。其集团下的一间子公司钻石咨询中心DTC，负责市场推广。

戴比尔斯主要业务包括钻石矿石开采、贸易、工业钻石生产及加工等。戴比尔斯的钻石开采包括：露天开采、井下开采、大规模冲积矿床、海岸开采以及深海开采。开采地点在博茨瓦纳、纳米比亚、南非和加拿大。

参考资料：

本片段剧情： Liv焦虑地等着Daniel向她求婚，没想到Emma的男友Fletcher抢先一步向Emma求了婚。Emma告诉Liv说她已经预约了她们从小就向往的婚礼殿堂Plaza，这让本来就心焦的Liv受不了了。她跑到Daniel的办公室，问他到底要不要和她结婚……

, 影片对白： ,Liv: It didn't happen tonight But I'm not worried, 'cause I'm sure Daniel's-,Emma: I-I'm engaged Fletcher just proposed, like, o minutes ago I'm engaged,Liv: Color,Emma: Colorless,Liv: Cut ,Emma: Brilliant,Liv: Clarity,Emma: Slightly included ,Liv: Carat,Emma: Almost, maybe just under More than he could afford, I'm sure,Liv: Wow!,Friend 1: Engaged Wow! Liv's engaged You're engaged That's-That's-C-Can I call you back,Friend 2: What do you mean Emma's engaged No Of course I'm wouldn't I be happy I think it's great Yeah No, you don't haveto e here I'm fine I'm not gonna eat anything Okay,Friend 3: And I have the perfect wedding present You are going to live with Emma and Fletcher You're irritating me,Emma: I can't believe it It's so weird having this on my finger I mean, hey, look It even sparkles in the rain,Liv: Blinding ,Emma: Ouch So I'm thinking about getting Dj Humble to spin at my party I don't know though Is that weird,Liv: You should go for it ,Emma: I'm not really a big band kind of girl,Liv: Whatever It's your wedding,Emma: Oh My mom can't fly up until the wedding She's too busy with work But who cares I've got you, right,Liv: Yeah I'm so psyched ,Emma: So would you e with me to meet her,Liv: I'm sorry What Meet who,Emma: Marion St Claire Haven't you been listening I've got an appointment with her on Friday,Liv: You already made an appointment,Emma: Yeah,Liv: You just got engaged last night,Emma: I know But technically , I'm already behind I mean, you gotta book early if you want the Plaza,Liv: The Plaza I can't believe this,Emma: What-What's the matter Why are you mad,Liv: I'm not mad No, not at you I just don't know what's taking Daniel so long,Emma: Oh, God I'm sorry I shouldn't have - We don't have to talk about this Let's just drop it,Liv: Don't worry about me Worry about Daniel He's gonna be dead soon,Emma: Why What-,Liv: Call you later,Emma: What are you go - Liv, you let him do this his own way,Liv: Excuse me Excuse me Excuse me! Honey! Will you just marry me, already,Colleague 1: Yeah Okay,Liv: I mean, isn't that what you want 'Cause it's what I just wanna know if you want to marry me Don't you wanna get married,Daniel: Honey, can we talk about this later,Liv: Oh, you changed your mind I saw the Tiffany box in the t Oh, my God It's not a ring If it's a key chain I'm gonna I'm taking you down with me Why don't you just tell meright here right now that whether marriage is something that you wouldwant Would you want to get married,Daniel: You know what I will tell you I have never met a more obnoxious , plicated, overbearing ,eous, art, sexy woman in my life And - if you had just waited untiltonight - then you wouldn't be the woman I fell in love useshe doesn't know how to wait Will you hold that for a second,Colleague 1: Yeah,Daniel: Which is fine, as long as I get to spend the rest of my life trying to catch up with her Liv,Liv: Hmm,Daniel: Will you marry me,Liv: Are you proposing,Daniel: Mmm,Liv: Really Honey, it's so out of nowhere ,Daniel: Liv, shut up Yes or no,Liv: Yes Yes,Daniel: Babe,Liv: Yes,Daniel: This is not how I planned it,Liv: Are you kidding,Colleague 2: I love "Bring Your Hot Girlfriend to Work" day,Colleague 3: Totally, 妙语佳句 活学活用 ,1 cut : 款式，式样。例如：the cut of a new suit（一套新装的款式）；wear glasses of an old-fashioned cut（戴老式眼镜）。,2 slightly included : 略有内含物。include有"包含较次的成分"（to contain as a secondary or minor ingredient or element）的意思。,3 blinding :炫目的，使眼花缭乱的。影片中Liv是说钻戒很亮，发出炫目光彩。看一下例子：blindingtears（使眼睛朦胧的泪水）。blinding还可以表示"使看不见的"。例如：foul weather and blindingfog（恶劣的天气和伸手不见五指的浓雾）。,4 spin : （DJ）播放（唱片）。,5 go for it : 大胆试一试，为了特定目的而冒一下险。go for也有"试图得到，争取"的意思。看一下例子：I'll will go for that job if I were you（如果我是你，我就要设法得到那个职位。）,6 psyched : 激动的，兴奋的。Liv表示能够帮Emma筹办婚礼她很愿意。psych有"使心理上作好准备；使兴奋，使激动"的意思。请看例子：,He psyched himself up for the race（他为赛跑作了充分的心理准备。）,It doesn't benefit you to get all psyched up against him,（你这么激动地一个劲儿反对他，对你没有好处。）,7 technically : 从严格意义上来讲。这个词在日常生活中很常用。看一下例子：,The tomato is technically a fruit, although it is eaten as a vegetable,严格地说，西红柿是一种水果，尽管它是当作蔬菜吃的。,8 obnoxious : 使人非常不快的，惹人讨厌的，可憎的。影片中Daniel很显然是在采用先抑后扬的策略。看一下例子：an obnoxious habit（招人厌的坏习惯）。,9 overbearing : 专横的，傲慢的，盛气凌人的。例如：be overbearing in one's relations with one's staff（专横地对待手下的工作人员）。,10 out of nowhere : 突如其来。Liv表示她对Daniel的突然求婚感到很意外，因为就在几秒钟前，他还在说她是个惹人讨厌的、傲慢的女人。