1.1 Carat Radiant Lab Grown Diamond Prices Comparison
As of May 2026, 1.1 carat radiant lab grown diamonds usually range from $163 to $2,555, with an average price of $752.In the last month, prices for these diamonds are down 2.3%.Compare 744 verified listings across 8 retailers tracked by CaratRadar.
1.1 Carat Radiant Lab Grown Diamond Market Overview
CaratRadar currently tracks 744 verified 1.1-carat radiant lab grown diamonds listed across 8 online retailers. Prices in this segment range from $163 to $2,555, with an average asking price of $752 and a median of $642.
The price spread of $2,392 (93.6% 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.
744 diamonds tracked in this segment
Price range: $163 to $2,555
Average price: $752
Median price: $642
Available across 8 retailers
Savings potential: up to 93.6%
Price Range Overview
As of May 29, 2026Real market range for this carat, shape, and diamond type.
744
$163
$752
$642
$2,555
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 78.6%IGI | 1.11ct | Radiant | E | SI1 | Ideal
From $167
Compare at $780
Save 74.6%IGI | 1.16ct | Radiant | G | SI1 | Ideal
From $172
Compare at $678
Save 61.2%IGI | 1.11ct | Radiant | G | VS1 | Very Good
From $174
Compare at $448
Save 78.9%IGI | 1.18ct | Radiant | F | VS2 | Excellent
From $175
Compare at $830
Save 78.7%IGI | 1.11ct | Radiant | F | VS2 | Excellent
From $179
Compare at $840
Save 67%IGI | 1.16ct | Radiant | D | VS2 | Very Good
From $179
Compare at $543
Save 76%IGI | 1.12ct | Radiant | F | VS2 | Ideal
From $180
Compare at $750
Save 76.2%IGI | 1.13ct | Radiant | E | VS2 | Ideal
From $181
Compare at $760
Save 55.5%IGI | 1.15ct | Radiant | F | VS1 | Ideal
From $182
Compare at $409
Save 71.3%IGI | 1.16ct | Radiant | F | VS1 | Excellent
From $183
Compare at $638
Save 70.7%IGI | 1.16ct | Radiant | F | VS1 | Excellent
From $183
Compare at $625
Save 71.3%IGI | 1.16ct | Radiant | F | VS1 | Excellent
From $183
Compare at $638
Save 70.7%IGI | 1.16ct | Radiant | F | VS1 | Very Good
From $183
Compare at $625
Save 67%IGI | 1.19ct | Radiant | E | VS2 | Excellent
From $184
Compare at $557
Save 66.1%IGI | 1.13ct | Radiant | G | VS1 | Excellent
From $186
Compare at $549
Save 79%IGI | 1.12ct | Radiant | E | VS2 | Very Good
From $187
Compare at $890
Save 77.1%IGI | 1.16ct | Radiant | F | VS2 | Excellent
From $188
Compare at $820
Save 76.2%IGI | 1.13ct | Radiant | E | VS2 | Excellent
From $188
Compare at $790
Save 77.6%IGI | 1.16ct | Radiant | H | VS1 | Ideal
From $190
Compare at $850
Save 75.9%IGI | 1.14ct | Radiant | E | VS1 | Excellent
From $193
Compare at $800
Save 65.8%IGI | 1.14ct | Radiant | G | VS1 | Excellent
From $194
Compare at $567
Save 74.3%IGI | 1.16ct | Radiant | H | VS1 | Ideal
From $195
Compare at $760
Save 65.8%IGI | 1.15ct | Radiant | H | VVS2 | Excellent
From $195
Compare at $570
Save 77.3%IGI | 1.17ct | Radiant | D | VS2 | Excellent
From $195
Compare at $860
Save 79.6%IGI | 1.13ct | Radiant | D | VS2 | Ideal
From $196
Compare at $960
Save 78.4%IGI | 1.18ct | Radiant | E | VS1 | Ideal
From $197
Compare at $910
Save 65.6%IGI | 1.11ct | Radiant | G | VVS2 | Excellent
From $200
Compare at $581
Save 77.5%IGI | 1.11ct | Radiant | F | VS2 | Ideal
From $200
Compare at $890
Save 78.5%IGI | 1.11ct | Radiant | F | VS2 | Ideal
From $200
Compare at $930
Save 73.3%IGI | 1.11ct | Radiant | G | VS1 | Ideal
From $200
Compare at $750
Save 77.7%IGI | 1.13ct | Radiant | E | VVS2 | Ideal
From $201
Compare at $900
Save 79.3%IGI | 1.19ct | Radiant | F | VVS2 | Excellent
From $201
Compare at $970
Save 71.5%IGI | 1.14ct | Radiant | G | VS2 | Ideal
From $202
Compare at $710
Save 66.8%IGI | 1.15ct | Radiant | G | VS2 | Ideal
From $203
Compare at $612
Save 65.5%IGI | 1.17ct | Radiant | G | VS2 | Excellent
From $204
Compare at $591
Save 52.2%IGI | 1.11ct | Radiant | E | VVS2 | Ideal
From $204
Compare at $427
Save 78.3%IGI | 1.16ct | Radiant | H | VS1 | Ideal
From $204
Compare at $940
Save 73.5%IGI | 1.11ct | Radiant | D | VS2 | Ideal
From $204
Compare at $770
Save 78.6%IGI | 1.14ct | Radiant | G | VS1 | Ideal
From $205
Compare at $960
Save 52%IGI | 1.13ct | Radiant | D | VS1 | Ideal
From $205
Compare at $427
Save 54.1%IGI | 1.14ct | Radiant | E | VVS2 | Ideal
From $205
Compare at $447
Save 79.5%IGI | 1.15ct | Radiant | G | VS1 | Ideal
From $207
Compare at $1,010
Save 79.7%IGI | 1.12ct | Radiant | G | VVS2 | Ideal
From $207
Compare at $1,020
Save 79.9%IGI | 1.12ct | Radiant | E | VS1 | Ideal
From $207
Compare at $1,030
Save 78.9%IGI | 1.18ct | Radiant | D | VS1 | Excellent
From $207
Compare at $980
Save 60.8%IGI | 1.11ct | Radiant | E | VVS2 | Very Good
From $208
Compare at $531
Save 73.3%IGI | 1.11ct | Radiant | D | VS2 | Ideal
From $208
Compare at $780
Save 71.8%IGI | 1.19ct | Radiant | H | VS1 | Ideal
From $209
Compare at $740
Save 79.7%IGI | 1.19ct | Radiant | D | VS1 | Excellent
From $209
Compare at $1,030
Save 69.5%IGI | 1.12ct | Radiant | E | VVS2 | Excellent
From $209
Compare at $686
Entry pricing in this category starts around $163.
What to Know When Shopping for 1.1 Carat Radiant Lab Grown Diamonds
- Always compare identical certified diamonds across retailers. Identical certificate numbers can have price differences of $2,392 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 $642 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 744 comparable stones in this segment. Prices start around $163 and go up to $2,555.
Based on the latest market data, the average asking price is about $752 with a median around $642.
The observed spread is roughly $2,392 across tracked listings, which is about 93.6% 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 $752. The median price is $642, 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 8 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 $2,392 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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