Leading technology.
Incredible quality.
Diamonds are graded based on the four C’s: color, cut, carat, and clarity. Each is vital in determining the overall quality and value of a diamond. Although these standards were developed for natural diamonds, they apply to lab-grown diamonds as well.
The process of growing a diamond is complex, and as with any grown thing, there is variability. Not all lab-grown diamonds are created equal. Lightbox leads the industry in our balance of quality and affordability, and we guarantee the grading range of our stones, ensuring they meet internationally-recognized standards.
The cut grade of a diamond refers not to its shape, but to the caliber of cut, which determines how its facets interact with light. The better the symmetry, proportioning, and polish of a diamond, the higher its cut grade — which can range from Poor to Excellent. All Lightbox lab-grown diamonds are graded as Very Good or Excellent. We grow each stone to the optimal shape and size for cutting, to maximize its brilliance.
CUT
How well a diamond is cut, which determines its brilliance and sparkle.
Clarity is based on the presence of small internal imperfections, or inclusions, in a diamond, which can obstruct its ability to refract light. Experts examine the stone under 10x magnification to determine its clarity, which is graded on an 11-point scale that ranges from included (13) to flawless (FL). Every Lightbox lab-grown diamond has been measured VS (Very Slightly included) or better, meaning that its inclusions cannot be seen by the naked eye.
Clarity
The absence of small internal imperfections which can obstruct its ability to refract light.
Carat refers to the weight of a diamond — not its size or shape. The overall standard of a diamond depends not only on its carat weight; it must be combined with high quality cut, clarity, and color. An incredible benefit of lab-grown diamonds is that the rarity factor is removed, meaning we can price our stones more affordably, no matter the carat weight.
Carat
The weight of a diamond, not its size or shape.
Color grading assesses the lack of color in a diamond; the closer it is to colorless, the higher its value. Stones are graded on a scale that ranges from D (colorless) to Z (light yellow or brownish tint). Every Lightbox lab-grown diamond has been measured as ‘near colorless’ (G–J) or better, with many graded as ‘colorless’ (D, E, F). Our cutting-edge technology also means we can create brilliantly colored lab-grown diamonds, such as our pink and blue stones, that are extremely rare when found in nature.
Color
The lack of color in a diamond; the closer it is to colorless, the higher its value.
Our seal of authenticity is laser-inscribed on every stone, invisible to the naked eye.
