How Much Does a 0.75-Carat Lab Diamond Cost? April 2024 Lab-Grown Diamond Prices

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The price of a diamond can vary greatly depending on its grade and the jeweler. For instance, a round lab-grown diamond weighing 0.75 carats can cost as little as $443 or as much as $1092, depending on its 4Cs and rarity. On average, a 0.75-carat lab diamond with a round brilliant-cut shape costs approximately $600 in April 2024, which is roughly 73% cheaper than a mined diamond.

How much does a 0.75-carat lab-grown diamond cost?

0.75-carat lab diamond prices range from $400 to $1000, depending on the quality. An excellent quality 0.75-carat lab-grown diamond costs around $600-700 in April 2024, which is up to 73% less than a mined diamond!

To provide insight into the cost of 0.75-carat lab-grown diamonds, our guide covers the prices of both round brilliant and fancy-shaped diamonds from six of the most affordable places to buy lab-created diamonds.

The cheapest places to buy a 0.75-carat lab-grown diamond

As purchasing a diamond involves a significant financial investment, it’s crucial to understand how to select the perfect stone and find the best lab-grown diamond deals. To help our readers make informed decisions, we have written various useful articles.

We suggest starting with the following purchasing guides:

Understanding 0.75-carat lab diamond prices

If you’re beginning to learn about diamonds, we suggest starting with the diamond 4Cs, and our intro to lab-grown diamond guide is an excellent place to start. However, if you’re short on time or only interested in the pricing of a 0.75-carat lab diamond, you may skip ahead.

The 4Cs of diamonds apply to both mined and lab-grown diamonds and include:

For a quick refresher on buying lab-grown diamonds, keep these three points in mind:

  1. The primary feature of diamonds is their brilliance, particularly for diamonds with a brilliant cut. While brilliance is less important for some fancy-shaped and fancy-colored lab diamonds, the cut grade remains crucial for all diamonds. Therefore, we always recommend prioritizing cut grade over diamond size when purchasing a lab-grown diamond.
  2. When it comes to diamond quality, size isn’t the most important factor. The 4Cs of diamond quality – cut, clarity, color, and carat – should be prioritized in that order when assessing a diamond’s quality. Focus on obtaining the highest possible cut grade, followed by color and clarity grades, and lastly, carat weight. With fancy-colored lab diamonds, the color grade is usually the most critical factor.
  3. Whenever possible, consider selecting diamond weights that are slightly below the most popular sizes. Opting for non-round weights can result in significant cost savings as the size difference is barely noticeable. For example, choosing a 0.71-carat diamond instead of an exact 0.75-carat diamond.

To provide you with a cost estimate, we have gathered pricing information on 0.75-carat lab-created diamonds from the best online lab diamond vendors in 2023. Our reference diamond is a lab-created round brilliant-cut diamond with the following 4C grades:

While our diamond example ranges may not be the best fit for everyone, they can be a good indicator of prices (and how to compare the 4Cs of lab diamonds).

List of average prices for 0.75-carat lab diamonds (April 2024)

We have compiled a list of prices for 0.75-carat lab-created diamonds from our top-rated and most affordable lab-grown diamond retailers. We believe these merchants are the best places to purchase lab-grown diamonds, including lab-created diamond engagement rings. They offer a vast selection of high-quality diamonds, exceptional shopping experiences, and excellent customer service. Additionally, they provide the most competitive prices for lab-grown diamonds!

Below is our list of average prices for 0.75-carat lab diamonds.

Lab diamond jewelerPrice for a 0.75-carat lab diamond
Grown Brilliance$515-545
Clean Origin$566-765
With Clarity$616-1092
Brilliant Earth**$730-1040*
James Allen**$720-1080
Prices for 0.75-carat lab diamonds were collected and updated in April 2024.

Prices are accurate at the time of writing in 2024.
*Includes 100% sustainable diamonds.

**Note that prices at Brilliant Earth and James Allen are higher-quality diamonds. That’s because their minimum quality is higher than our reference minimums.

Cost of 0.75-carat fancy-shaped lab diamonds (April 2024)

Lab-grown diamonds are available in various shapes, with the round brilliant-cut diamond being the most popular. However, lab-created diamonds come in several other shapes, known as fancy shapes or cuts, which include any shape other than round brilliant. In our guide to lab-grown diamond shapes, we explain how each shape has its unique beauty, benefits, and drawbacks.

The prices of fancy-shaped lab-grown diamonds can vary significantly. For instance, heart-shaped lab diamonds tend to be pricier than round brilliants, while shapes such as the emerald cut are more affordable. To help you compare the costs of the most popular fancy shapes, we have compiled the average prices of all 0.75-carat fancy-shaped lab-grown diamonds below.

Because fancy-shaped diamonds are evaluated differently and have less strict cut grading than round brilliants, we have adjusted the ranges below to include a “very good” rating, which would not be acceptable for a brilliant round cut.

The below prices are starting prices and will increase with higher quality, but they give an idea of the price ranges at each retailer and the overall price levels of each lab diamond shape. All diamonds will have at least the minimum specifications above.

Lab diamond jewelerOvalEmeraldPearPrincessRadiantCushionHeart
Clean Origin*$485$417$302$519$500
With Clarity$658$541$564$448$569
Grown Brilliance$345$325$385$330$350$345$705
Brilliant Earth**$760$640$640$680$640$780$680
James Allen**$680$480$620$790$750$820$1250
Prices for fancy-shaped 0.75-carat lab diamonds collected and updated in April 2024.

Prices are accurate at the time of writing in 2024.
*Cut grade fancy **Higher than minimum grades.

**Note that Brilliant Earth and James Allen prices are for higher-quality diamonds because their minimum quality is higher than our reference minimums.

The prices for 0.75-carat lab-grown diamonds are all found at our best-rated places to purchase lab diamonds, which offer the best quality, prices, and shopping experience.

Why choose a 0.75-carat lab-grown diamond?

Lab-grown diamonds can be significantly less expensive than mined diamonds with the same 4C grading, usually costing around 60-80% less. Additionally, our team closely tracks deals and discounts available for lab-grown diamonds and notifies our subscribers about them. Sign up below to receive notifications about new discounts on lab-grown diamonds.

In addition to being more affordable, lab-grown diamonds provide other advantages over mined diamonds, such as being more environmentally friendly and ethical. To learn more about these benefits, read the following articles:

Sustainable 0.75-carat lab diamonds

If you’re looking for 100% sustainable and climate-neutral lab-grown diamonds, Brilliant Earth is one of the best places. Vrai is another great sustainable option (and you can compare them in our Brilliant Earth vs. Vrai review). Lastly, Pandora Brilliance is also focused on sustainability, as we have written in our Pandora Brilliance review, but we don’t think they measure up to Vrai or Brilliant Earth.

Three 0.75-carat lab diamond ring examples

There are various options available to you when selecting a jewelry set that features a 0.75-carat lab-grown diamond. Below are example rings with a 0.75-carat lab diamond in various styles, ranging from traditional to contemporary engagement ring settings. Whether you’re searching for a lab-grown diamond engagement ring or a lab diamond anniversary ring, a 0.75-carat lab diamond is a great option.

Round 0.75-carat lab-grown diamond solitaire engagement ring from Ritani

Round 0.75-carat lab-grown diamond solitaire engagement ring from Ritani

0.75-carat lab diamond ring from Ritani

Lab-grown 0.75 Carat round diamond solitaire engagement ring from James Allen

Lab-grown 0.75-carat round diamond solitaire engagement ring from James Allen

0.75-carat lab diamond ring from James Allen

Lab-grown diamond stud earrings set with two 0.75-carat lab diamonds (for a total of 1.5-carat weight) from Clean Origin.

Lab-grown diamond stud earrings set with two 0.75-carat lab diamonds (for a total of 1.5-carat weight).

0.75-carat lab diamond stud earrings from Clean Origin

Where to buy 0.75-carat lab diamonds and jewelry

At, we review lab-diamond jewelers to help you in your search for the perfect lab diamond and lab diamond jewelry. We also compare the best lab diamond retailers if you are unable to decide. The following list shows our recommendations for the best places to buy a 0.75-carat lab diamond based on factors such as prices, selection, quality, sustainability, and buying experience.

Ritani review ⭐⭐⭐⭐⭐

Ritani tops our list of the best places to buy lab-grown diamonds because of their market-leading low prices and price transparency, the most extensive inventory of lab diamonds, customization options, and jewelry store partnership. That makes Ritani one of the best places to buy a 0.75-carat lab-grown diamond.

Ritani is one of the best places to buy a 0.75-carat lab-grown diamond.
Clean Origin is another of the best places to buy a 0.75-carat lab-created diamond.
Clean Origin review ⭐⭐⭐⭐⭐
Clean Origin

Clean Origin is another of our favorite places to buy a 0.75-carat lab diamond. We recommend Clean Origin for its unbeatable prices, vast selection of lab-grown diamonds and jewelry, and excellent support (plus 100-day risk-free returns).

Brilliant Earth review ⭐⭐⭐⭐⭐
Brilliant Earth

Brilliant Earth is the leading sustainable lab-grown diamond jeweler. Their deep commitment to sustainability, including being the only seller of sustainable graded lab diamonds, sets them apart. See all their 0.75-carat lab diamonds below.

Brilliant Earth is one of the best places to buy a 0.75-carat lab-grown diamond.
James Allen is one of the best places to buy a 0.75-carat lab-created diamond.
James Allen review ⭐⭐⭐⭐⭐
James Allen

James Allen is one of our best-rated places to buy lab-grown diamonds overall and one of the best for premium 0.75-carat lab diamonds. Their service is top-notch, prices are low, and the quality and craftsmanship are superb.

Compare prices on other lab-grown diamond-carat weights

We have listed the prices of lab-grown diamonds for the most in-demand carat weights. You can compare the prices of 0.75-carat lab-grown diamonds with the carat weights listed below:

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Klaus T
Klaus T

At, Klaus is responsible for everything related to diamond analysis and valuations, the financial aspects of diamond buying, and the impact of diamond mining vs. creating diamonds in the laboratory.

Klaus possesses a profound interest and expertise in diamonds, particularly lab-grown diamonds, and has worked with diamond and lab diamond analysis and valuation for many years. Klaus is an expert in diamond prices and valuation, the investment side of diamonds, and the economic development impact of diamond mining.

Klaus is an ex-diplomat, economic development expert, ex-Googler, and start-up founder. He has 15+ years of expertise in economic development, trade, and resource extraction, and he has worked with the impact of mining on societies and the environment. He is an expert on how resources, such as gold and diamonds and diamond mining, impact communities and exporting countries, and he has worked with the UN, the World Bank, the African Union, the African Development Bank, etc. Klaus later shifted focus to work with data analysis, marketing technology, measurement, and analytics, including 7+ years at Google.

Please contact Klaus if you are looking for data and analysis related to lab-grown diamonds or if you have questions about the economic impact of diamond mining and the shift to creating diamonds in the laboratory.

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