1 Carat Radiant Lab Grown Diamond Prices Comparison
As of April 2026, 1 carat radiant lab grown diamonds usually range from $179 to $3,018, with an average price of $749.In the last month, prices for these diamonds are down 0.5%.Compare 9,253 verified listings across 11 retailers tracked by CaratRadar.
1 Carat Radiant Lab Grown Diamond Market Overview
CaratRadar currently tracks 9,253 verified 1-carat radiant lab grown diamonds listed across 11 online retailers. Prices in this segment range from $179 to $3,018, with an average asking price of $749 and a median of $650.
The price spread of $2,839 (94.1% 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.
9,253 diamonds tracked in this segment
Price range: $179 to $3,018
Average price: $749
Median price: $650
Available across 11 retailers
Savings potential: up to 94.1%
Price Range Overview
As of Apr 14, 2026Real market range for this carat, shape, and diamond type.
9,253
$179
$749
$650
$3,018
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 23.6%GCAL | 1ct | Radiant | E | VS2 | Excellent
From $535
Compare at $700
Save 72.5%GCAL | 1ct | Radiant | D | VS1 | Excellent
From $530
Compare at $1,930
Save 72.4%GCAL | 1ct | Radiant | D | VVS2 | Excellent
From $552
Compare at $2,000
Save 72.5%GCAL | 1ct | Radiant | D | VS1 | Excellent
From $530
Compare at $1,930
Save 72.4%GCAL | 1ct | Radiant | D | VVS2 | Excellent
From $552
Compare at $2,000
Save 72.6%GCAL | 1ct | Radiant | D | VS2 | Excellent
From $512
Compare at $1,870
Save 72.6%GCAL | 1ct | Radiant | E | VVS2 | Excellent
From $516
Compare at $1,880
Save 72.5%GCAL | 1ct | Radiant | D | VS1 | Excellent
From $530
Compare at $1,930
Save 72.5%GCAL | 1ct | Radiant | D | VS1 | Excellent
From $530
Compare at $1,930
Save 72.5%GCAL | 1ct | Radiant | E | VVS1 | Excellent
From $534
Compare at $1,940
Save 72.4%GCAL | 1ct | Radiant | D | VVS2 | Excellent
From $552
Compare at $2,000
Save 74.2%GIA | 1ct | Radiant | D | VVS2 | Excellent
From $575
Compare at $2,230
Save 31.9%GIA | 1ct | Radiant | D | VVS2 | Excellent
From $624
Compare at $916
Save 74.6%GIA | 1ct | Radiant | D | IF | Excellent
From $933
Compare at $3,670
Save 84%GIA | 1ct | Radiant | F | SI1 | Excellent
From $545
Compare at $3,400
Save 75.9%GIA | 1ct | Radiant | G | VVS1 | Excellent
From $854
Compare at $3,540
Save 39.5%GIA | 1ct | Radiant | F | SI1 | Very Good
From $556
Compare at $920
Save 47.1%GIA | 1ct | Radiant | D | SI1 | Ideal
From $830
Compare at $1,570
Save 75.3%GIA | 1ct | Radiant | D | VVS2 | Excellent
From $567
Compare at $2,300
Save 62.5%IGI | 1ct | Radiant | E | VVS1 | Very Good
From $495
Compare at $1,320
IGI | 1ct | Radiant | I | SI1 | Good
From $2,458
Compare at $2,460
IGI | 1ct | Radiant | J | VS2 | Ideal
From $2,458
Compare at $2,460
IGI | 1ct | Radiant | I | VS2 | Good
From $2,669
Compare at $2,670
IGI | 1ct | Radiant | D | SI1 | Ideal
From $2,033
Compare at $2,035
Save 34.6%IGI | 1ct | Radiant | E | VS2 | Ideal
From $2,220
Compare at $3,395
IGI | 1ct | Radiant | E | SI1 | Ideal
From $1,973
Compare at $1,975
Save 74.5%IGI | 1ct | Radiant | F | VS2 | Very Good
From $526
Compare at $2,060
Save 61.2%IGI | 1ct | Radiant | F | VVS2 | Ideal
From $454
Compare at $1,170
Save 56.6%IGI | 1ct | Radiant | E | SI1 | Ideal
From $304
Compare at $700
Save 73.7%IGI | 1ct | Radiant | G | VS2 | Ideal
From $624
Compare at $2,370
IGI | 1ct | Radiant | F | SI1 | Very Good
From $1,841
Compare at $1,845
Save 32.5%IGI | 1ct | Radiant | D | SI1 | Ideal
From $372
Compare at $551
IGI | 1ct | Radiant | F | VS1 | Ideal
From $2,304
Compare at $2,305
Save 36.9%IGI | 1ct | Radiant | F | VS2 | Ideal
From $2,170
Compare at $3,440
Save 36.9%IGI | 1ct | Radiant | F | VS2 | Ideal
From $2,170
Compare at $3,440
Save 34.6%IGI | 1ct | Radiant | G | VS1 | Ideal
From $2,220
Compare at $3,395
IGI | 1ct | Radiant | G | SI1 | Ideal
From $1,818
Compare at $1,820
IGI | 1ct | Radiant | F | VS1 | Very Good
From $2,304
Compare at $2,305
IGI | 1ct | Radiant | H | VS1 | Ideal
From $2,033
Compare at $2,035
IGI | 1ct | Radiant | F | VS1 | Ideal
From $2,304
Compare at $2,305
IGI | 1ct | Radiant | F | VS1 | Very Good
From $2,304
Compare at $2,305
Save 34.6%IGI | 1ct | Radiant | G | VS1 | Ideal
From $2,220
Compare at $3,395
IGI | 1ct | Radiant | H | VS1 | Ideal
From $2,033
Compare at $2,035
IGI | 1ct | Radiant | H | VS2 | Ideal
From $1,929
Compare at $1,930
Save 57.6%IGI | 1ct | Radiant | F | VS2 | Ideal
From $454
Compare at $1,071
IGI | 1ct | Radiant | H | VVS2 | Ideal
From $2,088
Compare at $2,090
Save 56.9%IGI | 1ct | Radiant | F | VS2 | Ideal
From $414
Compare at $960
Save 59.1%IGI | 1ct | Radiant | F | VS1 | Ideal
From $455
Compare at $1,110
Save 30.4%IGI | 1ct | Radiant | F | SI1 | Ideal
From $454
Compare at $652
Save 59.1%IGI | 1ct | Radiant | F | VS1 | Ideal
From $455
Compare at $1,110
Entry pricing in this category starts around $179.
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 $2,839 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 $650 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 9,253 comparable stones in this segment. Prices start around $179 and go up to $3,018.
Based on the latest market data, the average asking price is about $749 with a median around $650.
The observed spread is roughly $2,839 across tracked listings, which is about 94.1% from highest to lowest offer in this bucket.
We refresh pricing data daily so these pages stay current with market changes.
Based on our data, the median price is $650, which represents the midpoint of the market. Anything below this figure from a reputable retailer is a solid deal.
We currently track this stone category across 11 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 $2,839 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.
0.9 Carat Radiant Lab Grown Diamond Prices
1.1 Carat Radiant Lab Grown Diamond Prices
0.8 Carat Radiant Lab Grown Diamond Prices
1.2 Carat Radiant Lab Grown Diamond Prices
0.7 Carat Radiant Lab Grown Diamond Prices
1.3 Carat Radiant Lab Grown Diamond Prices
0.6 Carat Radiant Lab Grown Diamond Prices
1 Carat Round Lab Grown Diamond Prices
1 Carat Oval Lab Grown Diamond Prices
1 Carat Pear Lab Grown Diamond Prices
1 Carat Marquise Lab Grown Diamond Prices
1 Carat Emerald Lab Grown Diamond Prices
Tracking Lab Grown inventory for 1 carat Radiant diamonds.