5.5 Carat Round Natural Diamond Prices Comparison
As of April 2026, 5.5 carat round natural diamonds usually range from $3,542 to $411,752, with an average price of $127,108.In the last month, prices for these diamonds are down 1.2%.Compare 50 verified listings across 7 retailers tracked by CaratRadar.
5.5 Carat Round Natural Diamond Market Overview
CaratRadar currently tracks 50 verified 5.5-carat round natural diamonds listed across 7 online retailers. Prices in this segment range from $3,542 to $411,752, with an average asking price of $127,108 and a median of $109,866.
The price spread of $408,209 (99.1% 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.
50 diamonds tracked in this segment
Price range: $3,542 to $411,752
Average price: $127,108
Median price: $109,866
Available across 7 retailers
Savings potential: up to 99.1%
Price Range Overview
As of Apr 14, 2026Real market range for this carat, shape, and diamond type.
50
$3,542
$127,108
$109,866
$411,752
Price History
Price Comparison Matrix
Live Listings
See all listingsCompare current retailer offers for this exact segment and open any listing for full details.
GIA | 5.5ct | Round | G | VS2 | Excellent
From $203,346
Compare at $239,948
Save 12.5%GIA | 5.5ct | Round | I | VS2 | Ideal
From $110,786
Compare at $126,644
Save 18.7%GIA | 5.5ct | Round | J | SI1 | Excellent
From $80,054
Compare at $98,441
Save 14.5%GIA | 5.5ct | Round | I | VVS2 | Excellent
From $119,655
Compare at $140,026
Save 29.7%GIA | 5.5ct | Round | D | SI1 | Excellent
From $151,189
Compare at $214,955
Save 13.8%GIA | 5.5ct | Round | F | SI2 | Excellent
From $88,550
Compare at $102,776
GIA | 5.5ct | Round | K | SI1 | Excellent
From $74,324
Compare at $89,709
Save 23.1%GIA | 5.5ct | Round | E | VS2 | Ideal
From $166,349
Compare at $216,220
GIA | 5.5ct | Round | H | VVS2 | Excellent
From $156,460
Compare at $157,726
IGI | 5.5ct | Round | H | VVS1 | Excellent
From $116,983
Compare at $126,383
Save 16.1%GIA | 5.51ct | Round | J | SI1 | Ideal
From $78,217
Compare at $93,224
Save 37.7%GIA | 5.51ct | Round | F | VVS1 | Ideal
From $234,423
Compare at $376,258
Save 19.7%GIA | 5.51ct | Round | G | VS2 | Excellent
From $190,557
Compare at $237,380
GIA | 5.51ct | Round | E | SI2 | Excellent
From $104,598
Compare at $126,221
Save 38.7%GIA | 5.51ct | Round | J | VVS2 | Ideal
From $99,430
Compare at $162,286
Save 16.1%GIA | 5.51ct | Round | H | SI2 | Excellent
From $90,224
Compare at $107,556
Save 12.5%GIA | 5.51ct | Round | L | VS2 | Excellent
From $47,766
Compare at $54,610
GIA | 5.51ct | Round | J | VVS2 | Excellent
From $108,305
Compare at $120,204
GIA | 5.51ct | Round | J | SI1 | Excellent
From $90,512
Compare at $109,233
GIA | 5.51ct | Round | I | VS2 | Excellent
From $111,989
Compare at $114,391
IGI | 5.51ct | Round | J | SI1 | Excellent
From $30,863
Compare at $34,237
Save 16.9%GIA | 5.52ct | Round | E | VS1 | Excellent
From $192,857
Compare at $232,013
GIA | 5.52ct | Round | I | SI2 | Excellent
From $113,345
Compare at $136,771
Save 17.1%GIA | 5.52ct | Round | K | VS1 | Excellent
From $87,188
Compare at $105,224
Save 14.5%GIA | 5.52ct | Round | G | VS2 | Ideal
From $171,529
Compare at $200,519
GIA | 5.52ct | Round | J | SI1 | Excellent
From $72,810
Compare at $76,164
GIA | 5.52ct | Round | I | VVS2 | Excellent
From $138,269
Compare at $138,545
GIA | 5.52ct | Round | I | VVS2 | Ideal
From $138,269
Compare at $138,545
Save 29.3%GIA | 5.52ct | Round | L | VS2 | Excellent
From $58,336
Compare at $82,557
Save 66.1%IGI | 5.52ct | Round | J | VS2 | Excellent
From $53,229
Compare at $157,080
Save 16.5%GIA | 5.53ct | Round | H | SI2 | Excellent
From $102,590
Compare at $122,883
Save 16.4%GIA | 5.53ct | Round | K | SI1 | Excellent
From $55,130
Compare at $65,931
GIA | 5.53ct | Round | J | SI1 | Excellent
From $80,748
Compare at $97,455
Save 29.3%GIA | 5.53ct | Round | J | SI2 | Ideal
From $70,559
Compare at $99,854
Save 11.8%GIA | 5.53ct | Round | G | VS1 | Excellent
From $137,493
Compare at $155,848
Save 16.1%GIA | 5.53ct | Round | J | VS2 | Excellent
From $76,182
Compare at $90,796
Save 21.8%GIA | 5.53ct | Round | H | VVS1 | Excellent
From $163,045
Compare at $208,430
Save 32.2%GIA | 5.54ct | Round | E | VS1 | Excellent
From $175,990
Compare at $259,394
IGI | 5.54ct | Round | G | VVS1 | Excellent
From $128,659
Compare at $137,670
Save 16.8%GIA | 5.55ct | Round | E | SI1 | Excellent
From $121,612
Compare at $146,256
Save 15.2%GIA | 5.56ct | Round | D | VVS1 | Excellent
From $273,939
Compare at $323,076
GIA | 5.56ct | Round | F | VS1 | Excellent
From $328,688
Compare at $355,131
Save 20.4%GIA | 5.56ct | Round | L | VVS2 | Excellent
From $67,828
Compare at $85,195
Save 13.8%GIA | 5.56ct | Round | I | SI1 | Excellent
From $86,319
Compare at $100,188
GIA | 5.58ct | Round | I | SI1 | Excellent
From $94,665
Compare at $114,241
Save 14.6%GIA | 5.58ct | Round | G | VS2 | Excellent
From $136,725
Compare at $160,019
Save 18.9%GIA | 5.58ct | Round | D | FL | Ideal
From $348,081
Compare at $429,381
GIA | 5.59ct | Round | K | SI1 | Excellent
From $59,428
Compare at $65,777
GIA | 5.59ct | Round | F | VVS2 | Excellent
From $260,090
Compare at $260,498
GIA | 5.59ct | Round | G | VVS1 | Excellent
From $217,322
Compare at $230,483
Entry pricing in this category starts around $3,542.
What to Know When Shopping for 5.5 Carat Round Natural Diamonds
- Always compare identical certified diamonds across retailers. Identical certificate numbers can have price differences of $408,209 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 $109,866 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.
- Compare natural vs. lab-grown options for the same carat and shape. Lab-grown diamonds are chemically identical but often 30-50% less expensive.
- Check shipping, insurance, and return policies. The lowest sticker price is not always the best deal once you factor in total cost of purchase.
- Round brilliants command a premium due to higher rough waste during cutting. If budget matters, consider oval or cushion shapes for similar visual size.
Frequently Asked Questions
We currently track 50 comparable stones in this segment. Prices start around $3,542 and go up to $411,752.
Based on the latest market data, the average asking price is about $127,108 with a median around $109,866.
The observed spread is roughly $408,209 across tracked listings, which is about 99.1% 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 $109,866, 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 7 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 $408,209 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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