THE MOST COMMON MYTHS ABOUT IDEAL CUT DIAMONDS

A close-up of a person’s hand holding a round cut diamond between their fingers with more diamonds on the surface below.

MOST COMMON MYTHS ABOUT IDEAL CUT DIAMONDS

Many myths and misunderstandings exist around diamonds, leaving many shoppers unsure of what truly sets ideal cut diamonds apart from the rest. By definition, an ideal cut diamond is crafted with precise proportions and symmetry to maximize brilliance, fire, and scintillation, allowing the stone to beautifully reflect light. While the term “ideal” suggests perfection, the reality is more nuanced, and not every so-called ideal cut gem meets these rigorous standards. To grant our readers greater clarity, our team at Rogers Jewelry Co. has crafted this guide addressing some of the most common misconceptions about these magnificent stones. With this knowledge, you can gain deeper insight into what makes a diamond’s cut genuinely stand out, and how to recognize a diamond’s exceptional quality. We are proud to house a dazzling array of ideal cut diamonds that our staff are always prepared to guide you through with ease.

A close-up of a person holding a metal case with a green round cut diamond inside.

MYTH #1: THE “60/60” RULE GUARANTEES AN IDEAL CUT

The “60/60” rule— referring to a diamond with 60 percent table (the width of the top flat facet) and 60 percent depth (the diamond’s overall width)— might sound like a magic formula for brilliance, but diamonds are far more complex than that. True sparkle comes from how well the diamond’s proportions, angles, and symmetry interact with light. A stone could follow the 60/60 proportions perfectly and still appear dull if other factors aren’t aligned. Evaluating overall light performance, including crown height and pavilion angles, is essential to finding a diamond that truly dazzles.

A close-up of four round cut diamonds sitting in the palm of a person’s hand.

MYTH #2: ALL IDEAL CUT DIAMONDS ARE CREATED EQUAL

In terms of light reflection, not all diamonds labeled as “ideal cut” perform the same. Grading standards can vary between labs, and different jewelers may use the term loosely. Some certifications, like GIA’s Excellent or AGS’s Ideal, follow stricter guidelines. However, even with these certifications, visual performance can differ. Two diamonds with similar labels might display completely different levels of sparkle. That’s why it’s important to view the stone in person, consider light performance reports, and work with trusted jewelers who prioritize quality standards with every single diamond in their selection.

A close-up image of a yellow round cut diamond on a black background.

MYTH #3: ANY DIAMOND SHAPE CAN BE LABELED “IDEAL”

Another common myth about ideal cut diamonds is that any diamond shape can be classified as “ideal.” In reality, the term “ideal cut” specifically applies to round brilliant diamonds, which have well-established proportion guidelines designed to maximize brilliance and light return. Less conventional shapes, such as oval, cushion, or emerald cuts, don’t have universally accepted ideal standards due to their varied facet patterns and proportions. While certain proportions may be considered desirable for these shapes, they aren’t graded as “ideal” in the same way round brilliants are.

A colorless round cut diamond next to a blue one on a pale backdrop.

Myth #4: Only Colorless Diamonds Can Be Considered “Ideal” Cut

One might assume that all ideal cut diamonds are colorless, but that isn’t the case. An ideal cut only refers to the diamond’s proportions and light performance, not its color grade. Diamonds with an ideal cut can range from D (colorless) to lower color grades with visible tint. While color affects the body tone of the diamond, it doesn’t influence the stone’s brilliance— that’s determined by cut quality. In the grand scheme of things, a well-cut diamond maximizes sparkle, often making any faint color less noticeable to the eye.

A close-up of a round cut engagement ring in a ring box surrounded by fluffy flowers.

Find Ideal Cut Diamonds at Rogers Jewelry Co.

Discover an incredible selection of ideal cut diamonds and fine diamond jewelry at Rogers Jewelry Co., with locations throughout California— Modesto, Elk Grove, Folsom, Fresno, Bakersfield, San Luis Obispo— and Reno, Nevada. Explore our stunning selection of Rogers Real Diamonds alongside an impressive collection of lab-grown diamonds. We also offer an array of designer engagement rings, plus custom design services to bring your unique vision to life down to the smallest details. Our team can also take care of your jewelry repairs with skill and care. Visit our showrooms or book an appointment today for a personalized consultation with one of our expert team members.