5.5 Carat Radiant Lab Grown Diamond Prices Comparison
As of May 2026, 5.5 carat radiant lab grown diamonds usually range from $790 to $27,692, with an average price of $4,390.In the last month, prices for these diamonds are down 7.8%.Compare 129 verified listings across 8 retailers tracked by CaratRadar.
5.5 Carat Radiant Lab Grown Diamond Market Overview
CaratRadar currently tracks 129 verified 5.5-carat radiant lab grown diamonds listed across 8 online retailers. Prices in this segment range from $790 to $27,692, with an average asking price of $4,390 and a median of $3,230.
The price spread of $26,902 (97.1% 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.
129 diamonds tracked in this segment
Price range: $790 to $27,692
Average price: $4,390
Median price: $3,230
Available across 8 retailers
Savings potential: up to 97.1%
Price Range Overview
As of May 30, 2026Real market range for this carat, shape, and diamond type.
129
$790
$4,390
$3,230
$27,692
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 47.6%IGI | 5.5ct | Radiant | H | VS2 | Ideal
From $949
Compare at $1,811
Save 71.8%IGI | 5.52ct | Radiant | E | VS2 | Very Good
From $1,039
Compare at $3,686
Save 64.1%IGI | 5.51ct | Radiant | F | VS1 | Very Good
From $1,055
Compare at $2,939
Save 79.2%IGI | 5.56ct | Radiant | H | VS1 | Ideal
From $1,068
Compare at $5,140
Save 67.2%IGI | 5.5ct | Radiant | H | VS1 | Ideal
From $1,085
Compare at $3,303
Save 63.3%IGI | 5.58ct | Radiant | F | VS1 | Ideal
From $1,114
Compare at $3,037
Save 74.1%IGI | 5.57ct | Radiant | G | VVS2 | Very Good
From $1,129
Compare at $4,361
Save 70.7%IGI | 5.51ct | Radiant | F | VS1 | Excellent
From $1,136
Compare at $3,881
Save 79.8%IGI | 5.55ct | Radiant | F | VS2 | Very Good
From $1,147
Compare at $5,680
Save 61.2%IGI | 5.53ct | Radiant | F | VS1 | Good
From $1,156
Compare at $2,983
Save 61.2%IGI | 5.53ct | Radiant | F | VS1 | Very Good
From $1,156
Compare at $2,983
Save 60.5%IGI | 5.53ct | Radiant | F | VS1 | Very Good
From $1,185
Compare at $2,998
Save 59.7%IGI | 5.51ct | Radiant | F | VS1 | Very Good
From $1,198
Compare at $2,974
Save 65.4%IGI | 5.5ct | Radiant | E | VVS2 | Excellent
From $1,205
Compare at $3,480
Save 25.6%IGI | 5.56ct | Radiant | F | VVS2 | Very Good
From $1,215
Compare at $1,632
Save 68.2%IGI | 5.59ct | Radiant | F | VVS2 | Excellent
From $1,227
Compare at $3,859
Save 68.2%IGI | 5.59ct | Radiant | F | VVS2 | Very Good
From $1,227
Compare at $3,859
Save 60.9%IGI | 5.52ct | Radiant | E | VS1 | Very Good
From $1,232
Compare at $3,147
Save 64.7%IGI | 5.51ct | Radiant | E | VVS2 | Very Good
From $1,233
Compare at $3,490
Save 25.7%IGI | 5.52ct | Radiant | E | VS1 | Ideal
From $1,247
Compare at $1,677
Save 60.8%IGI | 5.53ct | Radiant | E | VS1 | Excellent
From $1,247
Compare at $3,182
Save 60.7%IGI | 5.56ct | Radiant | E | VS1 | Excellent
From $1,255
Compare at $3,194
Save 58.3%IGI | 5.56ct | Radiant | F | VS1 | Very Good
From $1,267
Compare at $3,040
Save 60.1%IGI | 5.53ct | Radiant | F | VVS2 | Excellent
From $1,286
Compare at $3,221
Save 62.9%IGI | 5.52ct | Radiant | E | VVS2 | Ideal
From $1,306
Compare at $3,518
Save 58.3%IGI | 5.5ct | Radiant | E | VS1 | Very Good
From $1,308
Compare at $3,138
Save 48.4%IGI | 5.53ct | Radiant | G | VS1 | Ideal
From $1,309
Compare at $2,535
Save 62.3%IGI | 5.56ct | Radiant | H | VS1 | Ideal
From $1,318
Compare at $3,492
Save 70.2%IGI | 5.59ct | Radiant | E | VVS2 | Excellent
From $1,326
Compare at $4,445
Save 70.2%IGI | 5.59ct | Radiant | E | VVS2 | Ideal
From $1,326
Compare at $4,445
Save 63.4%IGI | 5.59ct | Radiant | E | VVS2 | Excellent
From $1,326
Compare at $3,627
Save 63.3%IGI | 5.58ct | Radiant | E | VVS2 | Very Good
From $1,327
Compare at $3,615
Save 63.3%IGI | 5.58ct | Radiant | E | VVS2 | Excellent
From $1,327
Compare at $3,615
Save 62.1%IGI | 5.52ct | Radiant | E | VVS2 | Very Good
From $1,330
Compare at $3,508
Save 72.9%IGI | 5.51ct | Radiant | FANCY | VS2 | Excellent
From $1,330
Compare at $4,901
Save 75.5%IGI | 5.52ct | Radiant | H | VVS2 | Excellent
From $1,332
Compare at $5,426
Save 69%IGI | 5.52ct | Radiant | E | VS1 | Excellent
From $1,334
Compare at $4,302
Save 43.7%IGI | 5.58ct | Radiant | F | VVS2 | Very Good
From $1,341
Compare at $2,383
Save 69%IGI | 5.56ct | Radiant | E | VS1 | Excellent
From $1,344
Compare at $4,333
Save 25.8%IGI | 5.51ct | Radiant | E | VVS2 | Very Good
From $1,346
Compare at $1,815
Save 69%IGI | 5.58ct | Radiant | E | VS1 | Excellent
From $1,349
Compare at $4,349
Save 59.1%IGI | 5.5ct | Radiant | G | VVS2 | Ideal
From $1,363
Compare at $3,330
Save 61.5%IGI | 5.53ct | Radiant | E | VVS2 | Very Good
From $1,365
Compare at $3,545
Save 46.3%IGI | 5.53ct | Radiant | G | VS1 | Very Good
From $1,368
Compare at $2,546
IGI | 5.52ct | Radiant | E | VS2 | Ideal
From $1,429
Compare at $1,450
Save 42.1%IGI | 5.58ct | Radiant | F | VS1 | Very Good
From $1,447
Compare at $2,498
Save 33.1%IGI | 5.5ct | Radiant | E | VS1 | Very Good
From $1,466
Compare at $2,190
Save 33.1%IGI | 5.5ct | Radiant | E | VS1 | Very Good
From $1,466
Compare at $2,190
Save 33.1%IGI | 5.5ct | Radiant | E | VS1 | Very Good
From $1,466
Compare at $2,190
Save 33.1%IGI | 5.51ct | Radiant | E | VS1 | Very Good
From $1,469
Compare at $2,194
Entry pricing in this category starts around $790.
What to Know When Shopping for 5.5 Carat Radiant Lab Grown Diamonds
- Always compare identical certified diamonds across retailers. Identical certificate numbers can have price differences of $26,902 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 $3,230 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 129 comparable stones in this segment. Prices start around $790 and go up to $27,692.
Based on the latest market data, the average asking price is about $4,390 with a median around $3,230.
The observed spread is roughly $26,902 across tracked listings, which is about 97.1% 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 $4,390. The median price is $3,230, 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 $26,902 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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