1.2 Carat Radiant Lab Grown Diamond Prices Comparison
As of May 2026, 1.2 carat radiant lab grown diamonds usually range from $163 to $2,553, with an average price of $752.In the last month, prices for these diamonds are down 2.7%.Compare 831 verified listings across 9 retailers tracked by CaratRadar.
1.2 Carat Radiant Lab Grown Diamond Market Overview
CaratRadar currently tracks 831 verified 1.2-carat radiant lab grown diamonds listed across 9 online retailers. Prices in this segment range from $163 to $2,553, with an average asking price of $752 and a median of $643.
The price spread of $2,390 (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.
831 diamonds tracked in this segment
Price range: $163 to $2,553
Average price: $752
Median price: $643
Available across 9 retailers
Savings potential: up to 93.6%
Price Range Overview
As of May 30, 2026Real market range for this carat, shape, and diamond type.
831
$163
$752
$643
$2,553
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 71%IGI | 1.22ct | Radiant | G | VS2 | Very Good
From $172
Compare at $594
Save 76.9%IGI | 1.2ct | Radiant | F | VS2 | Excellent
From $178
Compare at $770
Save 73.5%IGI | 1.25ct | Radiant | D | VVS2 | Very Good
From $179
Compare at $675
Save 61.2%IGI | 1.21ct | Radiant | D | VS1 | Very Good
From $181
Compare at $466
Save 76.7%IGI | 1.24ct | Radiant | F | VS2 | Excellent
From $184
Compare at $790
Save 78.9%IGI | 1.29ct | Radiant | F | VS2 | Excellent
From $192
Compare at $910
Save 59.8%IGI | 1.23ct | Radiant | D | VS1 | Very Good
From $194
Compare at $482
Save 62.4%IGI | 1.29ct | Radiant | D | VS2 | Very Good
From $195
Compare at $519
Save 60.4%IGI | 1.25ct | Radiant | D | VS1 | Good
From $197
Compare at $497
Save 73.5%IGI | 1.21ct | Radiant | H | VS1 | Ideal
From $199
Compare at $750
Save 61.8%IGI | 1.26ct | Radiant | E | VVS2 | Very Good
From $199
Compare at $521
Save 59.7%IGI | 1.28ct | Radiant | E | VS1 | Very Good
From $199
Compare at $494
Save 78.7%IGI | 1.22ct | Radiant | G | VS1 | Ideal
From $200
Compare at $940
Save 77.7%IGI | 1.27ct | Radiant | F | VS1 | Ideal
From $201
Compare at $900
Save 76.1%IGI | 1.24ct | Radiant | E | VS2 | Excellent
From $201
Compare at $840
Save 44%IGI | 1.26ct | Radiant | E | VVS2 | Very Good
From $201
Compare at $359
Save 62.7%IGI | 1.28ct | Radiant | E | VVS2 | Ideal
From $202
Compare at $542
Save 62.7%IGI | 1.24ct | Radiant | H | VS1 | Ideal
From $204
Compare at $547
Save 60.5%IGI | 1.22ct | Radiant | D | VVS2 | Very Good
From $205
Compare at $519
Save 59.8%IGI | 1.3ct | Radiant | F | VS1 | Ideal
From $206
Compare at $512
Save 76.3%IGI | 1.23ct | Radiant | E | VS2 | Excellent
From $206
Compare at $870
Save 60.7%IGI | 1.23ct | Radiant | D | VVS2 | Very Good
From $207
Compare at $527
Save 77.4%IGI | 1.24ct | Radiant | F | VS1 | Excellent
From $208
Compare at $920
Save 76.9%IGI | 1.2ct | Radiant | F | VS2 | Excellent
From $208
Compare at $900
Save 65.3%IGI | 1.23ct | Radiant | G | VS1 | Excellent
From $209
Compare at $603
Save 73.5%IGI | 1.21ct | Radiant | F | VS2 | Excellent
From $209
Compare at $790
Save 66.5%IGI | 1.29ct | Radiant | G | VS1 | Excellent
From $209
Compare at $624
Save 71.6%IGI | 1.22ct | Radiant | G | SI1 | Ideal
From $211
Compare at $744
Save 64.4%IGI | 1.29ct | Radiant | G | VS1 | Ideal
From $211
Compare at $593
Save 79.7%IGI | 1.2ct | Radiant | D | VS1 | Excellent
From $211
Compare at $1,040
Save 75.3%IGI | 1.24ct | Radiant | H | VS1 | Ideal
From $212
Compare at $860
Save 62.5%IGI | 1.23ct | Radiant | F | VVS1 | Very Good
From $212
Compare at $566
Save 61.2%IGI | 1.25ct | Radiant | G | VS1 | Very Good
From $213
Compare at $549
Save 79.1%IGI | 1.24ct | Radiant | F | VS1 | Excellent
From $213
Compare at $1,020
Save 60.1%IGI | 1.24ct | Radiant | D | VVS2 | Very Good
From $214
Compare at $536
Save 57.6%IGI | 1.2ct | Radiant | D | VVS2 | Good
From $214
Compare at $505
Save 63.9%IGI | 1.21ct | Radiant | G | VS1 | Ideal
From $215
Compare at $595
Save 78.7%IGI | 1.24ct | Radiant | G | VS1 | Excellent
From $215
Compare at $1,010
Save 62.1%IGI | 1.28ct | Radiant | D | VVS2 | Very Good
From $215
Compare at $568
Save 58.2%IGI | 1.22ct | Radiant | D | VVS2 | Very Good
From $218
Compare at $521
Save 58.2%IGI | 1.22ct | Radiant | D | VVS2 | Very Good
From $218
Compare at $521
Save 59.3%IGI | 1.3ct | Radiant | D | VS1 | Very Good
From $218
Compare at $536
Save 58.8%IGI | 1.24ct | Radiant | D | VVS2 | Very Good
From $221
Compare at $537
Save 66.3%IGI | 1.2ct | Radiant | G | VS1 | Ideal
From $222
Compare at $659
Save 77.7%IGI | 1.24ct | Radiant | F | VS2 | Ideal
From $223
Compare at $1,000
Save 59.4%IGI | 1.26ct | Radiant | D | VVS2 | Very Good
From $225
Compare at $554
Save 59.4%IGI | 1.26ct | Radiant | D | VVS2 | Very Good
From $225
Compare at $554
Save 75.9%IGI | 1.29ct | Radiant | H | VS1 | Ideal
From $227
Compare at $940
Save 79.2%IGI | 1.23ct | Radiant | E | VS2 | Ideal
From $227
Compare at $1,090
Save 79.4%IGI | 1.26ct | Radiant | F | VS2 | Ideal
From $227
Compare at $1,100
Entry pricing in this category starts around $163.
What to Know When Shopping for 1.2 Carat Radiant Lab Grown Diamonds
- Always compare identical certified diamonds across retailers. Identical certificate numbers can have price differences of $2,390 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 $643 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 831 comparable stones in this segment. Prices start around $163 and go up to $2,553.
Based on the latest market data, the average asking price is about $752 with a median around $643.
The observed spread is roughly $2,390 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 $643, 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 9 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 $2,390 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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