Arezo
15 090 kr
Nicdel
14 870 kr
Kimia
20 580 kr
Delbedel
16 180 krBuying a diamond can seem overwhelming, but by understanding these seven key factors, you’ll be able to make an informed choice and approach the process like a professional jeweler.
When choosing a diamond, it’s essential to understand the four C’s: Carat, Color, Clarity, and Cut. These characteristics determine both the value and appearance of the diamond. After covering these, we’ll explore diamond shapes, fluorescence, and the importance of certificates.
A diamond’s weight is measured in carats, with one carat equaling 200 milligrams or 0.2 grams. Each carat is divided into 100 "points" for precise weight measurement. For example, a 0.75-carat diamond weighs 75 points. Most diamonds are listed in carats, but smaller stones might be shown in points. Remember, carat refers to weight, not necessarily the diamond’s size.
“Carat indicates a diamond’s weight, but size can vary depending on other factors.”
Completely colorless diamonds are extremely rare, while most have subtle shades of yellow or brown. Diamonds are graded on a color scale from D (colorless) to Z (light yellow). Colorless diamonds are the most valuable and often the priciest. To strike a balance between quality and cost, we recommend choosing a diamond in the D to I range.
As diamonds form deep in the earth, they naturally develop internal inclusions and external blemishes. Clarity refers to the number, type, and location of these imperfections. Diamonds are graded for clarity on a scale ranging from Loupe Clean (LC), meaning flawless under magnification, to Piqué 3 (P3), where inclusions are visible to the naked eye.
“Clarity affects the diamond’s purity and brilliance – fewer inclusions result in a clearer stone.”
The cut of a diamond is critical to how well it reflects light. A well-cut diamond enhances its brilliance, fire (color dispersion), and scintillation (sparkling effect). Cut quality is rated based on the diamond’s proportions, symmetry, and polish, with grades ranging from Excellent (EX) to Fair (F).
“The cut is the most important factor in creating the diamond’s sparkle, turning it into a radiant treasure.”
Diamonds come in various shapes, with the round brilliant cut being the most popular and valuable due to its optimal light reflection. Other shapes, known as fancy shapes, include marquise, pear, heart, and step-cut designs like asscher. Each shape has its unique charm, fire, and scintillation.
“The shape influences both the style and brilliance of the diamond – the round cut is a timeless favorite for maximum sparkle.”
About 25–30% of diamonds exhibit fluorescence, meaning they emit a faint blue glow under ultraviolet light. While often subtle, strong fluorescence can occasionally make a diamond appear cloudy. Fluorescence is graded from none to strong, and we generally advise avoiding diamonds with strong fluorescence to maintain clarity.
“Fluorescence can be subtle, but too much can affect the diamond’s clarity – choose carefully.”
See our collections of engagement rings with diamonds here.
The safest way to ensure you’re buying a high-quality diamond is to choose one that comes with a certificate from a reputable gemological laboratory, such as the Gemological Institute of America (GIA), Hoge Raad voor Diamant (HRD), or the International Gemological Institute (IGI). A certificate provides a detailed report on the diamond’s 4 C’s and helps protect your investment over time.
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“A certificate guarantees quality, offering peace of mind and helping your diamond retain its value.”
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