Diamond Education

Every diamond tells a story of time, pressure and light. Understanding the 4Cs — cut, clarity, colour and carat — empowers you to choose a stone that is as meaningful as it is beautiful.

The Foundation

The 4Cs of Diamonds

Established by the Gemological Institute of America, the 4Cs are the universal language for describing diamond quality.

Cut

Ideal → Poor

Cut determines how well a diamond interacts with light. An excellent cut maximises brilliance and fire, making even a smaller stone appear larger and more vibrant. Sunehrie sources only diamonds graded Very Good or above.

Clarity

FL → I3

Clarity measures the presence of internal inclusions and surface blemishes. Most inclusions in our VS–SI range diamonds are invisible to the naked eye, offering excellent value without compromising beauty.

Colour

D → Z

Diamond colour is graded on the absence of colour — D being perfectly colourless and Z having a noticeable yellow tint. Our collection focuses on the near-colourless G–H range, ideal for gold settings.

Carat

Weight measurement

Carat refers to a diamond's weight, not its size. One carat equals 0.2 grams. Two diamonds of equal carat weight can appear different sizes depending on cut proportions and shape.

Popular Shapes

Diamond Shapes

Shape is often confused with cut. While cut affects how light performs inside a diamond, shape is the overall outline when viewed from above.

Round

The most popular shape, engineered for maximum brilliance with 58 facets.

Princess

A square shape with sharp corners, known for exceptional sparkle.

Oval

An elongated shape that creates the illusion of greater size.

Emerald

A step-cut rectangle prized for its hall-of-mirrors effect.

Pear

A teardrop silhouette, elegant in pendants and earrings.

Marquise

A boat-shaped stone that maximises carat weight.

Cushion

Soft rounded corners with large facets for a romantic look.

Heart

The ultimate symbol of love, skilled cutting brings the shape to life.

Trust & Assurance

IGI Certification

Every natural diamond in a Sunehrie piece is independently graded and certified by the International Gemological Institute (IGI). The certificate includes a detailed assessment of the 4Cs, fluorescence, proportions and a plotted diagram of inclusions.

An IGI certificate ships inside the box with your jewellery, giving you a permanent record of your diamond's quality. Each certificate carries a unique report number that can be verified online.

What Your Certificate Includes

Carat weight to the hundredth
Cut, clarity and colour grade
Fluorescence assessment
Proportions diagram
Plotted inclusion map
Unique report number for verification

Lasting Brilliance

Diamond Care Tips

Clean Regularly

Soak in warm water with mild soap for 20 minutes, then gently brush with a soft toothbrush.

Store Separately

Keep each diamond piece in its own soft pouch to prevent scratching other jewellery.

Avoid Chemicals

Remove diamond jewellery before applying lotions, perfumes or household cleaners.

Annual Check-Up

Have a professional inspect the prong settings annually to ensure stones are secure.

Explore Our Diamond Collection

Every stone is natural, IGI-certified and set in BIS-hallmarked gold.

Browse Jewellery

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