facebook pixel Skip to main content

What Determines a Diamond’s Worth?

February 15th, 2025

A couple cushion cut diamonds being examined by a jeweler

Brilliant and unparalleled in strength, diamonds possess a distinct allure that sets them apart as one of the most treasured gemstones on Earth. Their value is rooted in a combination of unique characteristics, making them a symbol of rarity and sophistication. Determining a diamond’s true worth is a meticulous process that requires the expertise of highly trained professionals, as each stone is set apart by subtle nuances that influence its valuation. We have carefully compiled a detailed guide outlining the factors that contribute to a diamond's value, allowing our Brockhaus Jewelry clients to gain a deeper appreciation for what makes these gems so extraordinary.

Viewing diamonds through a jeweler’s loop

Cut Quality

The brilliance of a diamond is brought to life through its cut, which determines how light interacts with the stone. A masterfully cut diamond reflects light from every angle, creating a mesmerizing sparkle and fiery display. The proportions, symmetry, and polish of a diamond's cut are carefully assessed in the valuation process to ensure maximum radiance. This factor significantly impacts a diamond’s worth, as even a flawless stone can appear dull with a poor cut.

Clarity Grade

The value of a diamond often hinges on its clarity, or the absence of imperfections within a diamond or on its surface. Inclusions, like tiny crystals or internal fractures, and blemishes, such as surface irregularities, can affect how light moves through the stone. Diamonds with higher clarity grades are rarer and more desirable. Expert gemologists use magnification and precision tools to evaluate clarity, ensuring that every detail is taken into account.

Color Grade

Diamonds achieve a high valuation when they appear completely colorless, allowing light to pass through without any hint of yellow or brown. Subtle differences in color can drastically influence a diamond’s appeal and price. A precise grading scale is used to determine a stone’s color grade, with the highest grades representing rare, icy white diamonds. This delicate balance of hue and transparency makes color one of the most critical aspects of a diamond’s value.

A single round cut diamond being held up to the light by jeweler tweezers

Carat Weight

A diamond’s carat weight refers to its size, but it’s more than just a number—it’s a statement of rarity and prestige. Larger diamonds are exponentially more valuable, as stones of substantial size are harder to find in nature. However, carat weight is best evaluated alongside the other 4 Cs, as a well-cut, yet smaller diamond can often outshine a poorly cut larger one. Each carat carries a story of timeless beauty and luxury.

Fluorescence

The subtle glow some diamonds exhibit under ultraviolet light, known as fluorescence, can also influence both their appearance and value. This phenomenon ranges from faint to strong and can give a stone a unique personality. In some cases, fluorescence enhances a diamond’s visual appeal by softening yellowish tones, while in others, it may diminish its brilliance. Understanding this nuanced characteristic requires expert evaluation to ensure a diamond’s glow aligns with its overall quality.

Certification

Every diamond tells a story, but an expert certification provides the proof behind its beauty. A grading report from a respected gemological institute, like GIA or AGS, guarantees the diamond’s quality has been thoroughly analyzed. This certification details the stone’s cut, color, clarity, carat weight, and additional characteristics, offering transparency and confidence in its value. Buyers can trust that a diamond certified by one of these institutes has undergone rigorous evaluation, ensuring they are investing in authenticity and excellence.

A heart, cushion, and round diamond laying on blue velvet

Explore Beautiful Diamonds at Brockhaus Jewelry

At Brockhaus Jewelry, our Norman jewelry store offers an unparalleled selection of exceptional diamonds and fine jewelry. From exquisite loose diamonds to designer engagement rings and timeless fashion accessories, we’re proud to provide something extraordinary for every occasion. Our expert team also specializes in custom design services, allowing you to create one-of-a-kind treasures, and professional jewelry repair to keep your pieces flawless. Experience the difference of shopping with a trusted jeweler—request an appointment today for a personalized consultation tailored to your unique needs.