Diamonds
The Four Cs
Understanding the four qualities that define a diamond’s beauty.
Every diamond in our collection is evaluated across four internationally recognised criteria — the Four Cs. Together, they determine a diamond’s brilliance, rarity, and value. At SANA Jewels, we select only diamonds that meet our standards across all four.
C
Cut
The most important of the Four Cs. Cut determines how well a diamond reflects light — its fire, brilliance, and scintillation. A well-cut diamond will outshine a larger, lower-quality stone every time. Our diamonds are selected for their exceptional cut grades.
C
Colour
Graded on a scale from D (colourless) to Z (light yellow). The closer to colourless, the rarer and more valuable the stone. Our jewelry features stones selected for their near-colourless to colourless grades, ensuring exceptional whiteness and brilliance.
C
Clarity
Measures the presence of natural inclusions or blemishes within a diamond. Grades range from Flawless (FL) to Included (I). Our diamonds are selected for clarity grades that ensure no inclusions are visible to the naked eye — what gemologists call “eye-clean.”
C
Carat
The unit of weight for diamonds. One carat equals 0.2 grams. As required by FTC regulations, diamond carat weights are disclosed as ranges. See our FAQ for a full carat weight reference table.
A three-stone diamond ring — center and side stones each graded individually across all Four Cs.
Natural vs. Lab-Grown
Our collection includes both natural and lab-grown diamonds. Lab-grown diamonds are chemically, physically, and optically identical to natural diamonds — the difference is origin, not quality. Where applicable, product listings clearly state which type is used.