1 Carat Radiant Lab Grown Diamond Prices Comparison
As of July 2026, 1 carat radiant lab grown diamonds usually range from $130 to $2,740, with an average price of $682.In the last month, prices for these diamonds are down 1.2%.Compare 8,129 verified listings across 12 retailers tracked by CaratRadar.
1 Carat Radiant Lab Grown Diamond Market Overview
CaratRadar currently tracks 8,129 verified 1-carat radiant lab grown diamonds listed across 12 online retailers. Prices in this segment range from $130 to $2,740, with an average asking price of $682 and a median of $570.
The price spread of $2,610 (95.3% from highest to lowest) highlights why comparing identical certified diamonds across multiple retailers matters. Two identical certified diamonds can differ by hundreds or even thousands of dollars depending on the retailer.
These figures are based on our latest daily market data, matched by certification lab and certificate number across retailers, so you are comparing the exact same diamond.
8,129 diamonds tracked in this segment
Price range: $130 to $2,740
Average price: $682
Median price: $570
Available across 12 retailers
Savings potential: up to 95.3%
Price Range Overview
As of Jul 14, 2026Real market range for this carat, shape, and diamond type.
8,129
$130
$682
$570
$2,740
Price History
Price Comparison Matrix
Live Listings
See all listingsCompare current retailer offers for this exact segment and open any listing for full details.
Save 79.7%IGI | 1.02ct | Radiant | F | SI1 | Very Good
From $148
Compare at $730
Save 76.1%IGI | 1.03ct | Radiant | E | SI1 | Very Good
From $148
Compare at $620
Save 80%IGI | 1.03ct | Radiant | D | SI1 | Very Good
From $148
Compare at $740
Save 77.6%IGI | 1.05ct | Radiant | E | SI1 | Ideal
From $150
Compare at $670
Save 78.1%IGI | 1.02ct | Radiant | E | SI1 | Ideal
From $151
Compare at $690
Save 78.6%IGI | 1.01ct | Radiant | E | SI1 | Ideal
From $152
Compare at $710
Save 78.6%IGI | 1.01ct | Radiant | E | SI1 | Ideal
From $152
Compare at $710
Save 79.9%IGI | 1.02ct | Radiant | E | SI1 | Ideal
From $153
Compare at $760
Save 65%IGI | 1.02ct | Radiant | D | VS2 | Ideal
From $159
Compare at $454
Save 79.1%IGI | 1.01ct | Radiant | G | VS2 | Ideal
From $159
Compare at $760
Save 79.3%IGI | 1.01ct | Radiant | G | VS1 | Excellent
From $160
Compare at $773
Save 80%IGI | 1.02ct | Radiant | G | VS2 | Ideal
From $160
Compare at $800
Save 67.5%IGI | 1.08ct | Radiant | G | VVS2 | Ideal
From $160
Compare at $492
Save 67.5%IGI | 1ct | Radiant | D | VS2 | Very Good
From $160
Compare at $493
Save 50.6%IGI | 1.02ct | Radiant | E | VS1 | Ideal
From $161
Compare at $326
Save 65%IGI | 1.01ct | Radiant | F | VS1 | Very Good
From $161
Compare at $460
Save 79.2%IGI | 1.02ct | Radiant | G | VS2 | Ideal
From $162
Compare at $779
Save 65%IGI | 1.04ct | Radiant | G | VS1 | Very Good
From $162
Compare at $463
Save 79.4%IGI | 1.04ct | Radiant | G | VS2 | Ideal
From $163
Compare at $790
Save 64.7%IGI | 1ct | Radiant | D | VS1 | Very Good
From $164
Compare at $465
Save 64.7%IGI | 1ct | Radiant | F | VVS2 | Very Good
From $164
Compare at $465
Save 67.4%IGI | 1ct | Radiant | D | VS1 | Very Good
From $164
Compare at $503
Save 67.4%IGI | 1ct | Radiant | D | VS1 | Good
From $164
Compare at $503
Save 67.4%IGI | 1ct | Radiant | D | VS1 | Very Good
From $164
Compare at $503
Save 64.7%IGI | 1ct | Radiant | D | VS1 | Very Good
From $164
Compare at $465
Save 66.3%IGI | 1.01ct | Radiant | G | VS1 | Very Good
From $164
Compare at $487
Save 57.7%IGI | 1.03ct | Radiant | E | SI1 | Very Good
From $165
Compare at $390
Save 67.5%IGI | 1.01ct | Radiant | D | VS1 | Very Good
From $165
Compare at $507
Save 64.9%IGI | 1.01ct | Radiant | D | VS1 | Very Good
From $165
Compare at $470
Save 67.5%IGI | 1.01ct | Radiant | D | VS1 | Very Good
From $165
Compare at $507
Save 50.2%IGI | 1ct | Radiant | D | VS2 | Ideal
From $166
Compare at $333
Save 72.2%IGI | 1ct | Radiant | E | SI1 | Ideal
From $167
Compare at $600
Save 79.2%IGI | 1.06ct | Radiant | G | VS1 | Very Good
From $167
Compare at $802
Save 56.8%IGI | 1.02ct | Radiant | G | VS1 | Ideal
From $167
Compare at $387
Save 70.3%IGI | 1ct | Radiant | D | VS2 | Excellent
From $167
Compare at $563
Save 76.8%IGI | 1.02ct | Radiant | E | SI1 | Ideal
From $167
Compare at $720
Save 64.8%IGI | 1.03ct | Radiant | E | VS1 | Very Good
From $167
Compare at $474
Save 75.8%IGI | 1.05ct | Radiant | F | SI1 | Ideal
From $168
Compare at $695
Save 54.6%IGI | 1.07ct | Radiant | D | VS1 | Ideal
From $169
Compare at $372
Save 77.2%IGI | 1.01ct | Radiant | D | VS2 | Ideal
From $169
Compare at $740
Save 79%IGI | 1ct | Radiant | D | SI1 | Very Good
From $169
Compare at $804
Save 57.3%IGI | 1ct | Radiant | E | VS2 | Very Good
From $170
Compare at $398
Save 58.4%IGI | 1.08ct | Radiant | H | VS2 | Excellent
From $171
Compare at $411
Save 78.4%IGI | 1.06ct | Radiant | G | VS1 | Ideal
From $171
Compare at $790
Save 75.4%IGI | 1.09ct | Radiant | G | VS1 | Excellent
From $172
Compare at $700
Save 76.4%IGI | 1.06ct | Radiant | G | VS2 | Excellent
From $172
Compare at $730
Save 79.4%IGI | 1.1ct | Radiant | H | VS1 | Ideal
From $173
Compare at $840
Save 78.9%IGI | 1.1ct | Radiant | G | VS1 | Ideal
From $174
Compare at $825
Save 66.6%IGI | 1.01ct | Radiant | H | VS1 | Excellent
From $174
Compare at $521
Save 54.1%IGI | 1ct | Radiant | H | VS1 | Very Good
From $174
Compare at $379
Entry pricing in this category starts around $130.
What to Know When Shopping for 1 Carat Radiant Lab Grown Diamonds
- Always compare identical certified diamonds across retailers. Identical certificate numbers can have price differences of $2,610 or more.
- Focus on the 4Cs that matter most to you. Color and clarity grades drive price more than cut in many segments, but cut affects sparkle the most.
- The median price of $570 is a useful benchmark. If you see a deal significantly below this, verify the retailer's reputation and return policy.
- Consider eye-clean alternatives. Moving one clarity grade down (e.g., VS2 to SI1) can save 10-15% with no visible difference to the naked eye.
- Lab-grown diamonds offer excellent value. Ensure the stone comes with a GIA or IGI certificate confirming it is laboratory-grown.
- Check shipping, insurance, and return policies. The lowest sticker price is not always the best deal once you factor in total cost of purchase.
- Radiant cuts combine the elegance of emerald shapes with the brilliance of round cuts, offering good value per carat.
Frequently Asked Questions
We currently track 8,129 comparable stones in this segment. Prices start around $130 and go up to $2,740.
Based on the latest market data, the average asking price is about $682 with a median around $570.
The observed spread is roughly $2,610 across tracked listings, which is about 95.3% from highest to lowest offer in this bucket.
We refresh pricing data daily so these pages stay current with market changes.
Based on completed market data, the fair market benchmark is $682. The median price is $570, so offers between the median and fair benchmark can be reasonable, while reputable listings below the median may be especially competitive.
We currently track this stone category across 12 online retailers, giving you a broad view of the competitive landscape.
For most buyers, color differences below G are hard to detect once set in a ring. Clarity grades of VS2 and above are typically eye-clean. Prioritize cut quality for maximum brilliance, then balance color and clarity based on your budget.
Retailer pricing strategies, overhead costs, and margin targets all contribute. The exact certified diamond can differ by $2,610 across sellers, which is why direct certified-diamond comparison is essential.
We match diamonds across retailers by their certification lab and certificate number. This means the prices you see are for the exact same physical diamond, not just stones with similar specs. It is a true apples-to-apples comparison.
Diamond prices fluctuate based on supply and demand. Our data refreshes regularly so you can track trends over time. Use the price range on this page as a benchmark and compare it to historical averages when available.
Diamond Terminology
- Carat
- A unit of weight for diamonds equal to 200 milligrams. Larger carat weights are exponentially rarer, which is why prices increase non-linearly with size.
- Cut
- Refers to how well a diamond's facets interact with light. Cut quality ranges from Ideal to Poor and is the single biggest factor affecting a diamond's brilliance.
- Color
- Grades a diamond's lack of color on a scale from D (colorless) to Z (light yellow). Grades D-F are considered colorless; G-J are near-colorless and offer good value.
- Clarity
- Measures the presence of internal inclusions or surface blemishes. Grades range from Flawless (FL) to Included (I3). Most inclusions in VS2 and above are invisible to the naked eye.
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Tracking Lab Grown inventory for 1 carat Radiant diamonds.