Increase Your Brilliance

Learn about a wide range of topics, ranging from the basics of diamond jewelry fabrication, to the physics of light traveling through diamonds, to misconceptions about lab diamonds promoted by the diamond mining industry.

Frequently Asked Questions (FAQ)

A New Paradigm

Ada Diamonds brightens the world with compelling, sustainable, and conflict free diamonds. Learn about our unique diamond concierge experience, founding story, and innovative partnerships.

Why it matters where it comes from

It Matters Where it Comes From

Discover why diamonds cultured in a laboratory are more pure, sustainable, and meaningful than Earth-extracted diamonds.

Frequently Asked Questions (FAQ)

LABORATORY-GROWN DIAMONDS A Paragon of Human Achievement

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Rather than offering 'dirt diamonds' that are dug out of massive holes in the Earth, Ada Diamonds proudly offers only laboratory-grown diamonds in our fine jewelry. Ada's sustainably cultured diamonds have the same crystal structure, chemical composition, optical properties, and physical properties as a mined diamond - carbon atoms arranged in a cubic crystal structure. 

Ada's gemstones are graded on the exact same criteria as mined diamonds (the Four Cs), by the same independent gemological laboratories that grade Earth-extracted diamonds. Compared to mined diamonds, Ada's diamonds have fewer impurities and fewer defects. This makes Ada Diamonds whiter, brighter, and stronger than the vast majority of mined diamonds. 




By Replicating the Conditions Within the Earth in Which Carbon Crystallizes into Diamond

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The ability to grow diamonds is one of the most precise and difficult manufacturing techniques that humans have ever achieved. It took almost 60 years of effort to develop the precision to grow gemstone quality diamonds. Because the processes are similar to natural growth, there are still variations in color and clarity of grown diamonds. In other words, not all lab grown diamonds are colorless and flawless. 

Today, there are two methods of growing diamond gemstones: High Pressure-High Temperature (HPHT) Chemical Vapor Deposition (CVD). Each process is best suited for certain sizes & colors of diamonds.


High Pressure High Temperature

HPHT diamond growth occurs within massive pressure cookers. Small diamond seeds are placed into a growth cell, and then graphite is inserted on top of the diamond seeds. The pressure cooker is heated to 1500 degrees C and pressurized to approximately 70,000 times the pressure at sea level.

At this extreme temperature and pressure, the graphite in the growth cell is melted into liquid carbon and then carefully cooled into the strongest form of carbon, a diamond crystal. 

Chemical Vapor Deposition

CVD diamond growth occurs within vacuum plasma reactors. Thin diamond plates are placed in a growth cell, and then hydrocarbon gas is injected on top of the diamond plates. High power microwaves break the bonds of the hydrocarbon gas, separating the carbon atoms from the hydrogen atoms.

The resulting free carbon within the reactor 'precipitates' onto the diamond plates, similar to the way that snowflakes collects on a table, vertically growing the diamond atom by atom. 

The resulting CVD diamonds are then subjected to extreme pressure to 'compress' the CVD diamond, like a footprint compresses snow. This additional step improves the quality of the diamond crystal, giving the diamond better color and light performance.

Common Misconceptions

There are many incorrect 'facts' promoted by the diamond industrial complex in order to create fear, uncertainty, and doubt about laboratory-grown diamonds. Below are the most common misconceptions, and here are the rest.

  • Misconception #1: Lab Diamonds are Cheap to Manufacture

    This is the most common misconception and is completely false. De Beers self-reported costs to mine diamonds was $104 per carat (for rough diamonds) in 2015. The marginal cost to grow each diamond in a laboratory is many times the cost for De Beers and other mining operations to dig diamonds out of the earth, even if you ignore the fixed costs of the machinery required to culture diamonds in a lab. The costs to cut, polish, and grade diamonds is exactly the same, regardless of the origin: grown or mined. 

  • Misconception #2: All Lab Diamonds all Colorless and Flawless

    The process to grow diamonds in a laboratory is very similar to the geological growth process. The same types of inclusions and imperfections present in mined diamonds can also occur in lab diamonds. If the diamond crystal grows too fast, there can be minuscule cracks (feathers) in the diamond. There can also be small inclusions of trace elements or other growth defects that cause the diamond to be near-colorless or slightly included. Lab diamonds are independently graded on the exact same criteria as mined diamonds by the exact same independent gemological laboratories that also grade mined diamonds.

  • Misconception #3: Lab Diamonds are Going to Flood the Market

    There are approximately 25 million carats of diamond gemstones that are mined, cut, and polished every year, with billions of carats more in existing mines. De Beers estimates its current diamond reserves at 479.7 million carats.  To build production facilities large enough to generate one percent of the current mined supply would take hundreds of millions of dollars of capital expenditure to build the facility and tens of millions of dollars a year to run the facility. It will take many years before lab diamonds are anything but an extremely small portion of the total diamond market.

  • Misconception #4: The Price of Mined Diamonds will be Reduced by Lab Diamonds

    This misconception hinges on three incorrect assumptions:

    1. Diamonds are rare (see below)
    2. There will be enough diamonds grown in a labs around the world to reduce that rarity (see Misconception #3)
    3. That it is cheaper to grow diamonds than it is to mine them (see Misconception #1)

    While mined fancy colored diamonds and large investment grade diamonds are quite rare, there are currently over one billion carats of diamond gemstones owned globally. Experts estimate that the Baby Boomer Generation in the United States owns over 500 million carats of diamond gemstones which will be inherited or resold in the next few decades. Ada believes the much larger threat to the value of mined diamonds is the recycling and resale of previously mined diamonds, a space that De Beers recently entered

  • Misconception #5: The Lab Diamond Industry Only Exists to Make Gemstones

    In fact, the main reason that the diamond industry exists is not to grow diamond gemstones but instead to grow functional diamonds for industrial, computational, health care, and scientific applications.




Lab Diamonds are Advancing Computing, Medicine, Manufacturing, Communication, and More


The purpose and main goal of the lab grown diamond industry is not alchemy; it is not to grow a hundred carat diamond gemstone. The main purpose of the lab diamond industry is for high tech applications of diamonds such as laser lenses, surgical knives, water purification devices, high pressure anvils, semi-conductors, and more.

The price of each of these functional diamonds is more than the prices of a diamond gemstone of the same size. Thus, only grown diamonds that are not perfect enough for high tech applications are cut and polished and sold to consumers as gemstones. 

When you purchase a lab grown diamond, you are investing in the future of humanity. Your purchase of a lab grown diamond directly funds research and development efforts to improve the use and efficiency of lab diamonds in the next generation of technological advancement and achievement.


Purchase Lab Grown Diamonds

Brighten your world with stunning, sustainably created diamonds of superlative quality.


Ada Diamonds proudly refuses to sell unexceptional diamonds. All of our diamonds are of the highest purity and optimally cut for maximum light performance. Every diamond we sell is 'eye clean,' meaning it contains no inclusions that are visible to the naked eye. In other words, a diamond purchased from Ada Diamonds is guaranteed have superlative fire, scintillation, and brilliance. 

We often get asked "Are lab grown diamonds less expensive than mined?" For the most part, the answer is yes! Ada Diamonds offers lab created diamonds at about a 30-40% discount compared to mined diamonds of the same quality.

Much like mined diamonds, lab grown diamonds are priced based on their quality characteristics and can vary dramatically in price. For simplicity, Ada has developed four quality levels for cultured diamonds:

Premium, Recommended, Satisfactory & Unexceptional


Consider this general pricing ranges of Ada's three quality levels. This chart is for round brilliant, white diamonds. Fancy shaped diamonds and fancy colored diamonds of the same quality and carat weight can vary in price slightly.

All prices shown are in USD. If the perfect stone for you is not in our inventory, Ada can commission the growth, cutting, and polishing of diamonds to your desired specification. For five carat and larger diamonds, please inquire.


Examples of Ada's Four Quality Levels


Engagement Rings
& Wedding Bands

Ada's core focus is custom made-to-order lab diamond engagement rings and wedding bands. Each piece is hand crafted in the United States.

 Emerald Cathedral Solitaire Lab Created Diamond Engagement Ring in Yellow Gold
 Classic Lab Created Diamond Stud Earrings Artistic

Fashion Jewelry

Ada delivers spectacular fine jewelry from daily wear lab diamond earrings, necklaces, bracelets, and fashion rings to custom-made couture pieces featuring the best diamonds on earth. 

Why We Don't Publicly List Diamonds

Ada chooses to not publish our available inventory for a few reasons:

  1. We are diamond snobs. We refuse to offer our clients mediocre diamonds, ever. We take great pride in delivering superlative service and spectacular diamonds.
  2. There are criteria beyond the 4Cs that define the quality of a diamond. Our expert gemologists use that information to curate lists of beautiful diamonds for each client.
  3. Navigating through thousands of diamonds is a difficult, intimidating experience for someone without gemological training.
  4. Choosing a diamond from a spreadsheet is a sterile, suboptimal experience. You deserve better.
 Loose Lab Created Diamonds for Sale

Learn More About Ada Diamonds 

 Loose Lab Created Diamonds Growth Process

Pure Science

By re-creating the conditions of nature, we grow gemstones that are chemically and optically identical to natural diamonds.

Learn more about the growth process

 Open Cathedral Solitaire Lab Created Diamond Engagement Ring in Platinum

Pure Origin 

Here at Ada Diamonds, we believe it matters where it comes from. Learn why the origin of your diamond should be front of mind.

Read about diamond origin

 Custom Jewelry Design Sketching Process

Pure Art

Our team of jewelry designers see our lab grown diamonds as a blank canvas with which to create beautiful works of art.

Explore the custom design process

Follow @AdaDiamonds for Daily Examples of Our Artistry