颜色

对于普通钻石,最理想的状态就是完全无色。然而,对于天然花式彩钻来说则是相反 的,它们的颜色越强烈,价值越高。值得一提的是,颜色的罕见程度对钻石的价值的 影响是最主要的。比如,粉色钻石远比黄钻罕见,如果它们很小的话,价值也更高。

以下是涉及彩钻的强度等级的术语(简化):

  • 绚丽 —最强色饱和度和亮度。
  • 花式深 —结合比绚丽更暗色调的强色饱和度
  • 绚丽深 —比绚丽更弱的强色饱和度
  • 花式 —比绚丽和绚丽深更浅色,但依旧明亮绚丽
此图像显示不同强度扥及的粉色,蓝色和绿色钻石。

钻石颜色是花式彩钻最主要的特性。事实上,不像无色(或白色)钻石,4C’s 认为 (克拉,净度,颜色和切工)都同样重要,决定花式彩钻的价值时颜色是最重要的因 素。

钻石等级

无色钻石等级体系衡量了钻石显示的色量(或者说没有显示的颜色),并且把它分为 六个不同等级:

无色(白色)钻石等级范围

排在最后的无色钻石颜色范围是花式彩钻颜色范围的开始。白色钻石的颜色范围的最 后两组称为开普钻(Cape Diamond),这种钻石实际上非常浅色或是非常浅黄或是棕 色钻石。

白与黄结合的钻石(白色钻石的颜色等级范围的最后)

然而,花式彩钻有不同的等级范围划分。与单字母等级不同,彩钻的等级划分是石头 内部的实际颜色。

当评估一颗花式彩钻时,有两个主要定义钻石颜色的特性

  • 颜色
  • 强度

定义钻石颜色

有十二种不同的主要花式颜色。彩钻可包含一种纯色或者结合了一种,两种甚至三种 色调。

最棒的是钻石颜色从不褪色。钻石可被储藏多年,以及除了只要简单将钻石擦拭干净 外,钻石可以与它首次磨亮的时候一样闪闪发光。钻石确实恒久远。

荧光性

大约三分之一的钻石在紫外线之下发出荧光。而缺乏荧光性也不意味着此石头不是钻 石,钻石可以在紫外线之下以任何方式发光。低荧光性的钻石更加吸引人,但这个因 素并不是主要影响钻石整体价值的主要因素。

颜色等级的历史

花式彩钻等级范围是 GIA 在二十世纪七十年代中创建的。随着花式彩钻越来越受欢迎, 业内要求一个规范的表格以更好地定义和理解这些钻石。因为,许多颜色可以混合, 该决定是为了给天然花式彩钻分级,并且加以描述。

另一方面,白钻石按字母次序分级。许多年前,人们使用不同的颜色等级体系,包括 罗马和阿拉伯数字给钻石分级。其他的还有使用“A,B 和 C”的范围,而“AA”和 “AAA”则描述的是更高等级的钻石。1953 年,一位来自 GIA(美国宝石学院)叫 Richard T. Liddicoat 的男人,发明了标准的等级范围,以衡量从“D-Z”的无色钻石。字 母“D”作为等级的开始,以不混淆之前存在的“A”级,因为“D”是钻石(diamond) 这个词的首字母,所以很适合。

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For several months I had considered investing in Fancy Colored Diamonds. I heard all the negative jargon about unscrupulous people in the diamond business and how you could be taken to the cleaners, sort of speak.  However, I called Northern Cross Diamonds and spoke to Stephen who is the owner. My experience with him from the early process to the actual purchase of a Fancy Colored Diamond from him was quite a journey.  He urged me before buying the diamond to do my own due diligence by comparing the price and quality. Needless to say I did not find one of like shape, color, clarity or price that would have changed my decision. If you would like to speak to me directly for more information you can get my telephone number from Northern Cross.


Read MoreAllan C.
Mississauga, Canada

I have bought several coloured diamonds from Northern Cross Diamonds.  I have found that Northern Cross gets me the best prices -- even when the diamonds come from another vendor and are listed with the other vendors at a higher price.  Stephen Mitanidis has spent hours of his time educating me on coloured diamonds and helping me to choose diamonds that have the best investment potential.  He has also allowed me to trade coloured diamonds that I own for coloured diamonds that I want and has assured me that Northern Cross will help me to sell my coloured diamonds if I choose to do so. If you buy a coloured diamond, I recommend that you consider showing it to your family members and friends. Most of them will be impressed with how it looks and might want to seize the opportunity to buy one or more before the value of coloured diamonds appreciates further.


Read MoreDavid P.
Toronto, ON

Working with Northern Cross Diamonds was great!  The staff was very knowledgeable and provided me with a great deal of information about the canary yellow radiant cut diamond that I purchased.  They wanted to make sure that I understood everything about the stone before I made my decision.  The price was very competitive, less than other diamond providers.  Once I had made my decision to purchase, the process and delivery time was very quick.  Now I have a beautiful and valuable diamond in my possession, thanks to Northern Cross.  I hope this helps spread word about your services.


Read MoreSoultana A.
East York, Canada

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