1 Carat Lab Grown Diamond Prices Comparison
As of May 2026, the average price of a 1 carat lab grown diamond is $738.1 carat diamonds can cost anywhere from $68 to $9,306 depending on shape, color, clarity, and other factors.In the last month, prices for these diamonds are down 1.8%.Compare 168,159 verified listings across 13 retailers in the tables below.
1 Carat Lab Grown Diamond Market Overview
CaratRadar currently tracks 168,159 verified 1-carat lab grown diamonds listed across 13 online retailers. Prices in this segment range from $68 to $9,306, with an average asking price of $738 and a median of $646.
The price spread of $9,238 (99.3% 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.
168,159 diamonds tracked in this segment
Price range: $68 to $9,306
Average price: $738
Median price: $646
Available across 13 retailers
Savings potential: up to 99.3%
Price Range Overview
As of May 29, 2026Real market range for this carat, shape, and diamond type.
168,159
$68
$738
$646
$9,306
Price History
Price Comparison Matrix
1 Carat Lab Grown Diamond Prices by Shape
Shape-level averages for this carat and type. Open each shape page for full market detail.
Live Listings
See all listingsCompare current retailer offers for this exact segment and open any listing for full details.
Save 78%IGI | 1ct | Radiant | G | SI1 | Ideal
From $130
Compare at $590
Save 77.8%IGI | 1ct | Emerald | F | SI1 | Ideal
From $144
Compare at $650
Save 69.7%IGI | 1.02ct | Emerald | D | SI1 | Ideal
From $144
Compare at $476
IGI | 1.02ct | Emerald | E | SI1 | Ideal
From $144
Compare at $160
Save 78%IGI | 1.03ct | Emerald | E | SI1 | Ideal
From $145
Compare at $660
Save 53%IGI | 1.01ct | Emerald | F | SI1 | Ideal
From $147
Compare at $313
Save 74.4%IGI | 1.01ct | Emerald | F | SI1 | Ideal
From $151
Compare at $590
Save 74.4%IGI | 1ct | Pear | F | SI1 | Very Good
From $151
Compare at $590
Save 76.6%IGI | 1.01ct | Emerald | G | VS2 | Very Good
From $152
Compare at $650
Save 10.5%IGI | 1.09ct | Emerald | F | SI1 | Ideal
From $153
Compare at $171
Save 77.2%IGI | 1ct | Pear | E | SI1 | Very Good
From $153
Compare at $670
Save 78.6%IGI | 1.08ct | Emerald | E | SI1 | Ideal
From $154
Compare at $720
Save 73.9%IGI | 1.01ct | Cushion | F | SI1 | Ideal
From $154
Compare at $590
Save 80%IGI | 1.01ct | Pear | D | SI1 | Very Good
From $154
Compare at $770
Save 68%IGI | 1ct | Emerald | G | VS2 | Excellent
From $155
Compare at $484
Save 58.6%IGI | 1ct | Radiant | H | VS1 | Very Good
From $155
Compare at $374
Save 79.9%IGI | 1ct | Emerald | G | VS2 | Excellent
From $155
Compare at $770
Save 76.6%IGI | 1.1ct | Emerald | E | SI1 | Ideal
From $155
Compare at $663
IGI | 1.03ct | Pear | E | SI1 | Excellent
From $155
Compare at $760
Save 77.1%IGI | 1.01ct | Emerald | G | VS2 | Excellent
From $156
Compare at $680
Save 76%IGI | 1.01ct | Emerald | G | VS2 | Excellent
From $156
Compare at $650
Save 43.2%IGI | 1.01ct | Emerald | G | VS2 | Excellent
From $156
Compare at $275
Save 63.3%IGI | 1.01ct | Emerald | G | VS2 | Very Good
From $156
Compare at $425
Save 63.3%IGI | 1.01ct | Emerald | G | VS2 | Excellent
From $156
Compare at $425
IGI | 1.03ct | Pear | E | SI1 | Very Good
From $157
Compare at $492
Save 75.3%IGI | 1.05ct | Radiant | E | SI1 | Ideal
From $158
Compare at $640
Save 76.4%IGI | 1.05ct | Radiant | E | SI1 | Ideal
From $158
Compare at $670
Save 73.2%IGI | 1.01ct | Pear | F | SI1 | Ideal
From $158
Compare at $590
Save 77.7%IGI | 1.05ct | Emerald | G | VS2 | Very Good
From $158
Compare at $710
Save 77.9%IGI | 1.06ct | Radiant | E | SI1 | Ideal
From $159
Compare at $720
Save 78.8%IGI | 1.06ct | Radiant | E | SI1 | Ideal
From $159
Compare at $750
Save 59.4%IGI | 1.01ct | Pear | D | SI1 | Ideal
From $159
Compare at $392
Save 75.8%IGI | 1.03ct | Pear | H | VS2 | Ideal
From $160
Compare at $660
Save 42.9%IGI | 1.03ct | Emerald | G | VS2 | Excellent
From $160
Compare at $280
Save 63.6%IGI | 1.03ct | Emerald | G | VS2 | Excellent
From $160
Compare at $440
Save 67.7%IGI | 1.03ct | Emerald | G | VS2 | Excellent
From $160
Compare at $496
Save 63.6%IGI | 1.03ct | Emerald | G | VS2 | Excellent
From $160
Compare at $440
Save 80%IGI | 1.03ct | Emerald | G | VS1 | Very Good
From $160
Compare at $800
Save 49.1%IGI | 1.02ct | Radiant | D | SI1 | Very Good
From $161
Compare at $316
Save 72.5%IGI | 1ct | Radiant | F | SI1 | Ideal
From $162
Compare at $590
Save 77.2%IGI | 1ct | Cushion | E | SI1 | Ideal
From $162
Compare at $710
IGI | 1.06ct | Pear | H | SI1 | Ideal
From $162
Compare at $180
Save 75.8%IGI | 1.05ct | Emerald | G | SI1 | Ideal
From $162
Compare at $670
Save 68.2%IGI | 1ct | Pear | E | VS2 | Very Good
From $162
Compare at $509
Save 68.2%IGI | 1ct | Pear | E | VS2 | Excellent
From $162
Compare at $509
Save 76%IGI | 1.04ct | Radiant | G | VS2 | Ideal
From $163
Compare at $680
Save 79.6%IGI | 1.07ct | Cushion | F | SI1 | Ideal
From $163
Compare at $800
Save 73.7%IGI | 1.01ct | Oval | E | SI1 | Ideal
From $163
Compare at $620
Save 74.9%IGI | 1.01ct | Oval | E | SI1 | Ideal
From $163
Compare at $650
Save 78.3%IGI | 1.01ct | Cushion | E | SI1 | Ideal
From $163
Compare at $750
Entry pricing in this category starts around $68.
What to Know When Shopping for 1 Carat Lab Grown Diamonds
- Always compare identical certified diamonds across retailers. Identical certificate numbers can have price differences of $9,238 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 $646 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.
Frequently Asked Questions
We currently track 168,159 comparable stones in this segment. Prices start around $68 and go up to $9,306.
Based on the latest market data, the average asking price is about $738 with a median around $646.
The observed spread is roughly $9,238 across tracked listings, which is about 99.3% 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 $738. The median price is $646, 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 13 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 $9,238 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.
Related Price Categories
Explore adjacent carat ranges and shapes to compare market shifts.
1 Carat Round Lab Grown Diamond Prices
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1 Carat Emerald Lab Grown Diamond Prices
1 Carat Radiant Lab Grown Diamond Prices
1 Carat Cushion Lab Grown Diamond Prices
1 Carat Princess Lab Grown Diamond Prices
1 Carat Heart Lab Grown Diamond Prices
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