Your Diamond Guide

Our Philosophy

In today’s diamond market, you’ll encounter many types of diamonds—natural, treated, and lab-grown... With so many options, it’s easy to feel overwhelmed or uncertain. That’s why having a trusted source matters more than ever.

At Meri Diamonds, trust is our cornerstone. We believe in transparency, authenticity, and guiding our clients with clarity. Whether you're choosing a timeless natural diamond or exploring other options, we’re here to help you make informed, confident decisions.

Below, you’ll find a short briefing about diamond types to help you understand the differences and make the choice that’s right for you.

big diamond, black & white, meri diamonds

Understanding the 4 C's of Diamonds

Choosing a diamond is more than just picking something shiny—it’s about understanding what kind of world you are accessing, the craftsmanship and characteristics that give each stone its unique value. The 4 Cs—Cut, Clarity, Color, and Carat—are the global standard used for evaluating a diamond’s quality.

Cut & Diamond Shapes

The cut isn’t about the shape—it’s how the diamond’s facets interact with light. A well-cut diamond sparkles brilliantly, even if it’s smaller or lower in other grades. From round to square and to almost any shape, round diamonds or brilliant cut (are the most common of them, developed by Marcel Tolkowsky, the 57 facets on the stone are precise calculate to achieve the maximum brilliance. These parameters (the angel, symmetry of how the diamond will be cut) are called the cut. A round is calculated by three parameters: cut grade, symmetry and polish on the certificate with a example 3ex everything will be assessed excellently so according to the certificate you have a perfect stone in your hands (which in some cases is not, because the laboratory can misuse their name) for this it is important to have an independent expert. All the rest of the shapes are called fancy shapes and are graded by symmetry and polish.

Clarity

Diamonds are born deep in the earth under extreme pressure, so naturally, they may contain inclusions, these inclusions can be black dots, we call them piqe but also fractures, white dots... everything that makes the stone dirty on the inside reduces its value on the market and will be graded with a 10x microscope as follows I (P), SI, Vs, VVS, IF (LC), to F (FL-flawless)

Color

white colorless diamonds are prized, but a slight hue can influence value. The scale goes from D (completely colorless) to Z (noticeable tint) And usually has a brownish-yellow tint. But there are also color diamonds that are called Fancy color diamonds and are extremely rare, they are graded completely differently and then the 4c does not play a role, only two of them are usually used, the color and the carat. With larger diamonds there are additional parameters, etc. mentioned on the certificate. But color and carat will play the noticeable role.

Carat

The wordcaratcomes from the seeds of the Carob tree (Ceratonia siliqua). Ancient gem traders used these seeds as natural weight standards because they were thought to be remarkably uniform. Over time, the term stuck—and today, one carat equals 200 milligrams or 1 carat = 0.2 grams.

"A Glimpse into the Craft"

Diamond Cutting

This is, of course, a very brief explanation of the process, but the craft unfolds as follows: Diamonds, being one of the hardest materials on Earth, are cut using a steel disc coated with diamond dust. First, the rough diamond undergoes a detailed scanning process to determine its optimal shape and potential yield. Based on this scan, a plan is created, outlining the precise angles at which the diamond should be cut. Once the plan is finalized, the diamond goes through lasers, robotics and you name it... But at the end the diamond is handed over to the cutter — and from that point on, the outcome depends entirely on the cutter’s skill and mastery of the art.

Questions?

If you still have any questions or need guidance, feel free to reach out—our team is here for you, and happy to help.

CONTACT

YOUR DIAMOND GUIDE