Diamond cut refers to how well a diamond has been proportioned, faceted, and polished. The cut determines how effectively light enters the diamond, reflects from its facets, and returns to the eye as brilliance and sparkle.
A well-cut diamond sparkles with unmatched brilliance, while a poorly cut diamond may appear dull, even if it has high carat weight or clarity. At Zarna Jewels, every CVD lab-grown diamond is crafted with expert precision cutting to maximize fire, brilliance, and beauty.
Diamond cutting is a highly skilled process carried out by master craftsmen. The process involves:
Planning – Determining the best way to cut the rough diamond for maximum brilliance and value.
Cleaving/Sawing – Splitting or sawing the rough stone into smaller pieces.
Bruting – Shaping the stone into a round outline or preparing fancy shapes.
Polishing – Creating facets with exact angles to reflect light.
Inspection & Grading – The cut is graded based on brilliance, polish, symmetry, and fire.
Diamond Cut: Refers to the quality of proportions, polish, and symmetry that affect brilliance.
Diamond Shape: Refers to the outline silhouette of the diamond, such as round, oval, princess, pear, or marquise.
👉 Example: A diamond may have a round shape but be graded with an excellent cut or a good cut depending on its proportions.
Excellent Cut Diamond
Perfect proportions, symmetry, and polish.
Reflects nearly all light entering the diamond, producing maximum brilliance.
Known as the Ideal Cut.
Very Good Cut Diamond
Reflects most of the light.
Slightly less brilliance than excellent cut but often better value.
Good Cut Diamond
Reflects a large portion of light.
Balanced option for buyers prioritizing both budget and beauty.
Fair Cut Diamond
Reflects limited light.
Chosen when size (carat weight) is more important than brilliance.
Poor Cut Diamond
Cut too shallow or deep, resulting in significant light leakage.
Very little sparkle, though cheaper in price.
Diamond cut quality directly impacts how light behaves inside the stone:
Ideal Cut (Excellent): Light reflects perfectly back, maximum sparkle.
Deep Cut (Poor): Light leaks through sides, less brilliance.
Shallow Cut (Poor): Light escapes through the bottom, dull appearance.
At Zarna Jewels, we specialize in excellent to very good cut diamonds, ensuring every piece of jewellery sparkles with exceptional brilliance.
Q1: Why is there no cut grade for fancy shapes?
Cut grading is standardized mainly for round diamonds. Fancy shapes (like oval, pear, emerald, princess) are assessed individually for symmetry, polish, and proportions.
Q2: Why are round diamonds priced higher than other shapes?
Round brilliant cuts require more rough diamond wastage and precise craftsmanship, making them costlier but also the most brilliant.
Q3: Which diamond cut is the best?
The Excellent (Ideal) Cut is the best, offering maximum brilliance, fire, and sparkle.
Q4: Which diamond cut is the most affordable?
Cuts with lower precision (Good or Fair) are usually more affordable but compromise brilliance.
Q5: Which diamond cut sparkles the most?
The Round Brilliant Cut delivers the highest sparkle due to its facet pattern and symmetry.
Q6: What diamond cut looks biggest?
Fancy shapes like oval, marquise, and pear tend to appear larger than round diamonds of the same carat weight due to their elongated surfaces.
📞 Need Guidance?
Our diamond experts will help you choose the perfect cut for your engagement ring or jewellery piece.
Call: +91 87339 47879
Email: Care@zarnajewels.com