Cut has the single biggest impact on how a diamond looks. It refers to how well the facets are proportioned and polished, not the shape. A precise cut produces a diamond's sparkle, which is broken into brilliance (the white light reflected), fire (the flashes of rainbow color), and scintillation (the play of light and dark as the stone moves).

Color grades how little color a diamond shows, running from D (colorless) down toward Z (light yellow or brown). For lab-grown diamonds, most stones now fall in the top colorless range.

Clarity measures the tiny internal features, called inclusions, and surface marks, called blemishes. Most diamonds sold sit between VS (very slightly included) and SI (slightly included), and these are typically invisible to the naked eye.

Carat is weight, not size, though the two are related. Because natural diamonds are rarer in larger sizes, their price rises sharply with carat weight, while lab-grown prices scale much more gently.

Widely regarded as the benchmark for natural diamonds, issuing the full traditional 4Cs grading report.

Very common for lab-grown stones and often details the specific growth method, either HPHT or CVD. Because most lab-grown diamonds land in a very high color and clarity range, GIA describes them simply as Premium or Standard rather than the full 4Cs.

A diamond scores a perfect 10 on the Mohs hardness scale, making it the hardest natural material known. This applies equally to lab-grown and natural stones, which is why a diamond stands up beautifully to daily wear.

This is the area where the two categories diverge the most, and we believe in providing honest pricing clarity.

When comparing stones of similar size and quality, a lab-grown diamond carries a significantly lower upfront cost than a natural diamond. This price difference is why many shoppers choose the lab-grown path to maximize the stone size for their budget or to focus more on an intricate, custom-crafted setting.

Resale value tells a different story. Lab-grown prices have dropped over time as production has scaled globally, so lab-grown stones generally return a much lower percentage of their initial purchase price on the secondary market. Natural diamonds have a far more established resale market and tend to hold their value more consistently due to their geological rarity, with exceptional or larger stones sometimes appreciating.

The term conflict diamonds refers to stones mined to fund violence. The Kimberley Process, an international certification scheme launched in 2003, was created to keep these stones out of the legitimate supply chain. We prioritize transparent sourcing and clear commitments to responsible practices.

Lab-grown diamonds avoid traditional land mining, but growing them requires significant energy. The footprint depends heavily on whether a facility runs on renewable power or fossil fuels. Natural diamond mining affects land and water, though modern operations also fund livelihoods for millions of people and increasingly report on their sustainability practices. Environmental impact is less about the category and more about the specific producer.

Origin does not end with the stone. Ethical sourcing also covers the metal. Choosing recycled gold meaningfully reduces the footprint of a ring regardless of which diamond sits on top.

Every CdK piece is covered for workmanship defects.

Your purchase includes 5 professional maintenance sessions and jewelry cleaning to keep your piece shining

We provide a professional ring sizing service in our showroom and offer one free ring resizing for every engagement ring to ensure the perfect fit.

Typical production time after design approval is approximately 6 weeks.