Carbon-rich gas is heated in a CVD vacuum chamber to break it down and release the carbon particles. They attach to the starter seed in layers to form a rough diamond.
All about lab grown diamonds
What are lab grown diamonds?
Lab grown diamonds are real diamonds that are created in a lab. Using advanced technology in a highly controlled environment, scientists successfully mimic the same process the earth uses over billions of years to create natural diamonds. From their chemical composition to the way they sparkle in the light, lab grown diamonds are identical to natural diamonds in every way. The only difference is their origin story.
To replicate the way natural diamonds form, the starter seed is placed in a capsule with high-quality carbon. Under high pressure and heat, the carbon dissolves and crystalizes on the seed layer by layer.
THE DIAMOND 4C’S
Lab grown diamond quality
The value of every lab grown and natural diamond is determined by its unique combination of the 4C’s: cut, color, clarity and carat. Helzberg’s selection offers a range of values and price points to fit every budget.
side-by-side comparison
Lab grown vs. natural diamonds
Lab grown and natural diamonds share the same composition, craftsmanship, durability and grading. The biggest differences: their origins and the size of the diamond you’ll get for your budget.
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Yes. Lab grown diamonds are physically and optically identical to natural diamonds.
Of course, the most important measure of every diamond’s value is the relationship, moment, milestone or story it represents. Diamond pricing, both natural and lab grown, fluctuates over time based on market conditions, supply and demand. At Helzberg, we protect your investment with our Trade-Up Program, letting you upgrade your existing Helzberg lab grown diamond jewelry to a different piece of lab grown diamond jewelry as your budget or lifestyle changes.
Every diamond, whether lab grown or natural, is unique. That’s why we have the 4C’s (color, cut, clarity, carat). It’s a universal system for evaluating a diamond’s quality and value regardless of its origin.
Use gentle dish soap, warm water and a very soft brush to clean lab grown diamond jewelry at home. Learn more here.
No. A lab grown diamond’s clarity and sparkle lasts forever — just like a natural diamond’s.
GIA does grade lab grown diamonds, but their primary focus and long-standing expertise is in grading natural diamonds. Helzberg works with trusted third-party grading laboratories such as GCAL and IGI due to their specific expertise in lab grown diamond grading practices.
Yes and no. Specialized testing equipment exists, but it’s extremely expensive and not available in all retail locations. Every lab grown diamond Helzberg sells is checked to ensure that it aligns with documented authenticity, type and quality specifications.
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Has something sparkly caught your eye? Schedule a one-on-one at a store near you or make a virtual appointment with an experienced diamond professional to learn more about it.