Fancy color diamonds (FCDs) are rare and because of this they are also more expensive than colorless diamonds. The rarest and most expensive fancy color diamonds are pink and green and a large pink or green diamond with a vivid color can been sold at auction for millions of dollars per carat. Even if you're not in the market for an FCD, I think you will learn something about … [Read more...]
Maximising the Value of Your Diamond
To me, getting the best value for money means getting the most out of whatever you're trying to optimise for. This tutorial is designed to help you take what you've learned in level 2 to choose specific sets of proportions to maximise the characteristic that you're going for, whether it's size, light return, fire, or scintillation. When optimising a diamond, it's important … [Read more...]
Fluorescence
Fluorescence occurs when a material absorbs ultraviolet light and then glows. Most type-1a diamonds that fluoresce do so with a bluish glow (over 95% according to GIA) and the effect is caused by boron impurities that occur as a result of defects in the diamond's crystal structure. Although much less common, it is also possible for a diamond to fluoresce with a different … [Read more...]
Diamond Clarity
Clarity refers to the flaws in a diamond and is graded from Flawless (FL) to Included 3 (I3) by the GIA. The scale covers the following grades: Flaws in a diamond are natural and there is no such thing as a truly flawless diamond. What you need to know is that diamond clarity is only graded under 10x magnification and this means that if you look under higher … [Read more...]
Diamond Color
Diamond color is graded on a scale from D to Z with D-color being the most colorless and Z-color being the most tinted. This is further subdivided into smaller ranges. Most of you only need to be aware of 2 ranges: Colorless - D E F Near-colorless - G H I J If you know you are not color-sensitive, or you are specifically looking for a warmer looking diamond then … [Read more...]