It is caused by light reflecting off the inside of the diamond back out to the viewer. Diamond Brilliance.ĭiamond brilliance is a property of diamonds. They are known for the beloved sparkle that comes with brilliance.
These diamonds have great cut, polish, and finish. They are also sometimes called Triple X diamonds. To get the greatest brilliance, look for “Triple Excellent” diamonds. The trade-off between brilliance and fire is up to you and your preferences. It also shows off a diamond’s clarity more.Ī diamond with many facets on its upper surface will have greater brilliance. Less facets increase the fire of a diamond. This is because there are less angles for the diamond to reflect from. A diamond that has less facets will have less brilliance. The ideal diamond brilliance is a personal preference. This contrast between light and dark regions makes the sparkle of a diamond stand out. It is where light reflection happens is that also matters. That means diamond brilliance isn’t just about how much light reflection there is. Either you as the viewer or the diamond needs to be moving in order to see it. This gives a balance and contrast to the diamond.Īccording to With Clarity, scintillation needs motion. Scintillation means that some facets (or faces) of the diamond will be dark. But the angle its cut at isn’t the only thing that affects diamond brilliance. Determining diamond brilliance.Ī diamond’s cut can make or break its brilliance. It impacts how much of this colored light is returned to the viewer. Similar to diamond brilliance, the angle, and cut of the diamond matter. These different speeds cause the light to separate into a rainbow of colors. This is because of their different wavelengths. When white light enters a diamond, the speed of that light slows down. It’s similar to how a rainbow is formed after a rainstorm. Diamond fire is the diffraction of white light into a rainbow of colors. The reflection of white light inside a diamond is diamond brilliance. Diamond fire causes the rainbow colored sparkle some diamonds may have. It makes it seem like light is pouring out of the diamond. However, they are quite different properties.ĭiamond brilliance creates the white sparkle of a diamond. You may have even used these terms interchangeably. You can learn more about the reflection inside a diamond from ScienceABC’s webpage: What is the difference between diamond brilliance and diamond fire?ĭiamond fire and diamond brilliance contribute to a diamond’s sparkle. It won’t have nearly the same sparkle as a properly cut diamond. If the diamond is cut at an angle that is too deep, light will be reflected out the side of the diamond. As a viewer, the light would not be reflected back in your direction. This is because light will be reflected out the bottom of the diamond. The rest passes through the diamond.Ī diamond that is cut at too shallow of an angle won’t reflect much light. However, only a small amount of light reflects back. This reflection of white light is diamond brilliance.Ī perfectly cut diamond is cut so that light entering the diamond is reflected back out to the viewer. By cutting a diamond at just the right angle, light entering the diamond is reflected back into your eyes. What is the difference between diamond fire and brilliance? How does it affect a diamond’s sparkle and beauty? The science of diamond brilliance.ĭid you know diamonds don’t naturally brightly sparkle? The sparkle of a diamond is due to its cut. We’ll get into the science of diamond brilliance to explain this property. It is the basis for a diamond’s sparkle and brightness. The brilliance is an optical property of a diamond. But did you really know what that term meant? Is it just clever marketing, or does it mean something more?ĭiamond brilliance is the white light reflected off of a diamond. You may have heard of the term diamond brilliance before.
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