The Ultimate 5Cs

Ideal cut and the 5th C of diamonds

JOY COLORi only selects the ideal cuts, which make the diamonds shine the best colorful brilliance.
JOY COLORi’s lab-grown diamonds are not only graded based on the traditional 4Cs by international diamond grading institutes but also have the new 5th C of diamonds: green certificates such as Climate neutral, carbon neutral, and the ESG+ Certified Brand Butterfly Mark.

Ideal cut and the 5th C of diamonds

JOY COLORi only selects the ideal cuts, which make the diamonds shine the best colorful brilliance.
JOY COLORi’s lab-grown diamonds are not only graded based on the traditional 4Cs by international diamond grading institutes but also have the new 5th C of diamonds: green certificates such as Climate neutral, carbon neutral, and the ESG+ Certified Brand Butterfly Mark.

Ideal cuts of JOY COLORi

A diamond isn’t about its color, clarity, or hearts and arrows but whether its cut ratio is an ideal cut. The ideal cut originated from the ideal diamond cut ratio published by a Belgian mathematician named Marcel Tolkowsky in 1919. A diamond’s cut grade depends on its cut ratio, symmetry, and polish. If the depth is too deep or shallow, it won’t allow light to reflect completely. Only the ideal cut would bring out a diamond’s best brilliance, fire, and scintillation.

The new 5th C
Climate neutrality/Carbon neutrality

Committed to sustainability, JOY COLORi imports from the world’s first diamond dealer to achieve 100% climate neutrality. It is a milestone in the diamond industry as GHG emissions and pollution during the purchase process are greatly reduced. Each diamond has a certificate number on its girdle, meaning from the growth to being embedded, it is completely traceable.

Cut

A diamond’s cut is decided by its proportion, symmetry, and polish. If the depth is too deep or shallow, it won’t allow light to reflect completely. Only the ideal cut ratio would bring out a diamond’s best brilliance, fire, and scintillation.
And the cut quality is graded from the best to the worst as Ideal Cut, Excellent, Very Good, Good, Fair, or Poor.
*Our round diamonds are strictly selected for Ideal cut

Color

The diamond color grade is from colorless to light yellow.
Grades range from D to Z, depending on the diamond’s transparency.
*All the Type IIa diamonds selected by JOY COLORi have no impurity and are graded as colorless (D, E, F) or near colorless (G, H, I).

Clarity

Every diamond comes with inclusions, which are like their birthmarks. Diamond graders would examine the size, amount, and positions of inclusions and blemishes at 10x magnification before giving the diamond a fair clarity grade.
*A diamond is usually graded by 2 to 4 graders to maintain the correctness and objectivity of clarity grading.

Carat

The carat is a unit of weight. Each carat equals 100 points. EX. 0.50 carat = 50 points, 1.00 carat = 100 points, meaning 100% happiness as well.