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Tips for Choosing the Perfect Diamond

September 5th, 2025

A pair of loose diamonds, with one being held by tweezers against a light reflective surface.

Diamonds are more than sparkling stones; they are symbols of love, milestones, and cherished memories. That’s why when selecting a diamond, it is important to approach the process with knowledge and confidence. At Koorosh Fine Jewelry in Chicago, Illinois, we guide our clients through every step, ensuring that each decision reflects their personal taste and vision. Whether you are creating a custom engagement ring or designing a signature piece of jewelry, understanding the factors that influence a diamond’s value and appearance will help you make an informed choice. Let’s explore a few essential tips to help you select the perfect diamond.

A dozen loose diamonds scattered all over black surface, with one being held by tweezers.

Understanding the 4 C’s of Diamonds

The 4 C’s — cut, color, clarity, and carat weight — are the foundation of diamond selection. Cut is the most important, determining the diamond’s brilliance and how it reflects light. Meanwhile, color ranges from colorless to faint hues, with the purest tones offering exceptional beauty. Clarity measures the presence of natural inclusions, while carat determines size and weight. Each of these factors balances quality and budget, helping you select a diamond that aligns with both practicality and aesthetic desires.

Choosing a Diamond for Your Budget

When investing in a diamond, it is important to understand how different characteristics affect cost. Carat weight, for example, significantly influences price, but a smaller diamond with an exceptional cut can appear larger and more radiant than a heavier stone of lower quality. By prioritizing cut and clarity while remaining flexible with carat and color, you can maximize your budget without compromising beauty. 

A close up of an emerald, cushion, heart, princess, oval, and pear shaped diamonds on a white surface.

Considering the Jewelry’s Purpose

Each diamond tells a story, and its intended setting plays a crucial role in selection. Cut is the most important, determining the diamond’s brilliance and how it reflects light. For an engagement ring, durability and everyday brilliance are priorities, making cut and clarity particularly important. We encourage clients to envision how their diamond will be worn, as this guides the choice of shape and proportions. A cushion cut may exude romance in a ring, while round brilliants offer symmetry for studs. Aligning the diamond with its intended purpose ensures that the final design reflects both style and meaning.

Trusting Your Jeweler

Selecting a diamond is not just about evaluating the stone — it is also about trusting the jeweler guiding you through the process. With over 25 years of experience, we are committed to transparency, education, and artistry. Every diamond we present is carefully vetted, ensuring authenticity and excellence. By collaborating closely with our clients, we make the process not only informative but also deeply personal.

A close up of a round brilliant cut diamond held by tweezers against a dark green background

Explore Beautiful Diamonds at Koorosh Fine Jewelry

Find the diamond that feels right at Koorosh Fine Jewelry Chicago, Illinois. We take pride in helping clients discover diamonds that reflect their unique love stories and personal style. From our showroom on East Oak Street, we offer custom engagement rings, personalized jewelry, and a collaborative design experience. Whether you are beginning with a vision or need guidance to shape your ideas, our boutique is the destination for meaningful creations. We invite you to explore our selection firsthand, or read the guide to custom jewelry. To begin your journey,contact us right away to book an appointment.