钻石的价值由何而来

1。地球上极为罕有
钻石原石是非常罕有的。
平均250吨被开采的矿石可以产生1克拉未打磨的钻石原石
1克拉 = 0.2克， 250吨= 5千万克

2。钻石的硬度在摩氏标度中排列了第1 (注意：摩氏标度是一个相对尺度)
莫桑石 SiC =9.25，
刚玉 = 9
(9 和10在日在摩氏标度的绝对硬度是400 比1500) 


 
3. 折射和反射光的能力 （其它宝石没能与之相比）
我们注意到的是，没人使用宝石质量钻石来雕刻玻璃。

钻石切割:是指钻石高度与直径的比值，钻石台面宽度与直径的比值。 不要和钻石状形所混淆。圆的钻石有最高的能力折射和反射光。是可能增加钻石的光芒光彩重要因素。


什么是理想切割的钻石？ (下一个系列)

让我们比较“石英”和 “钻石”之间的反射和折射光 



注意到 那些细微光线通过 组体的光角度的差别吗 ？

理想的切割将最大限度地利用光的反射，从而产生了辉煌的移动和静止的最佳平衡光, 钻石切割太“浅”或太“厚”可能导致“鱼眼”或“钉头”效应 


 

以上的石英石或钻石？是好是坏？

 猜一下

这就解释了为什么一个理想切割的石英有时似乎比切割欠佳的钻石辉煌. 基于上述认识，你会花费3000美元买切割欠佳的钻石？或买一个理想切割的石英US$30看起来更漂亮？

照片中的是什么又猜一下

http://www.eightheartsdiamond.com/diamondknowledge.html

Rough Diamond

Rough diamond is very rare.
By average 250 tons of mined ore can produce 1ct of unpolished diamond

1ct = 0.2gram, 250 ton = 50 million grams
Hardness of Diamond ranked 1st in Mohs Scale (a relative scale)
Moissanite ( silicon carbide) reads 9.25 and Corundum reads 9

Value of a Diamond
Extremely Rare
Hardest material on earth
Ability to refract and reflect light
If we have not noticed, no one is using a gem quality diamond to cut glasses.

Diamond Cuts
Refer to the arrangement of a diamond’s facet. Not to confused with diamond’s shape. Round Brilliant diamond has the highest ability to refract and reflect light. The ONLY factor which could increase the brilliance of a diamond.


Ideal Cut Diamonds
What is Ideal Cut Diamond (next series)


Let’s compare the reflection and refraction between Quartz and Diamond difference, note the tiny difference in the optical angle the light pass through the mass.


Ideal Cut will maximize the brilliance from light reflection thus produce the optimal balance of MOVING and STATIC light

This explains why ideal cut quartz sometimes looks more brilliant than a poorly cut diamond

With the above understanding, would you spend US$3000 for a poorly cut diamond which looks worst than a US$30 ideal cut quartz?
A diamond cutting too “shallow” or too “thick” might result in “fish eye” or “nail head” effect