5.5 Carat Round Natural Diamond Prices Comparison
As of May 2026, 5.5 carat round natural diamonds usually range from $3,542 to $414,225, with an average price of $127,868.In the last month, prices for these diamonds are up 0.7%.Compare 58 verified listings across 9 retailers tracked by CaratRadar.
5.5 Carat Round Natural Diamond Market Overview
CaratRadar currently tracks 58 verified 5.5-carat round natural diamonds listed across 9 online retailers. Prices in this segment range from $3,542 to $414,225, with an average asking price of $127,868 and a median of $109,170.
The price spread of $410,683 (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.
58 diamonds tracked in this segment
Price range: $3,542 to $414,225
Average price: $127,868
Median price: $109,170
Available across 9 retailers
Savings potential: up to 99.1%
Price Range Overview
As of May 29, 2026Real market range for this carat, shape, and diamond type.
58
$3,542
$127,868
$109,170
$414,225
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 27.7%GIA | 5.5ct | Round | L | SI2 | Excellent
From $39,621
Compare at $54,807
Save 10.1%GIA | 5.51ct | Round | L | VS2 | Excellent
From $44,803
Compare at $49,840
Save 33.5%GIA | 5.56ct | Round | J | SI2 | Ideal
From $52,477
Compare at $78,943
Save 27.6%GIA | 5.59ct | Round | K | SI1 | Excellent
From $55,802
Compare at $77,025
Save 11.4%GIA | 5.53ct | Round | K | SI1 | Excellent
From $57,853
Compare at $65,318
Save 14.3%IGI | 5.52ct | Round | J | VS2 | Excellent
From $58,815
Compare at $68,603
Save 20.5%GIA | 5.52ct | Round | L | VS2 | Excellent
From $63,434
Compare at $79,801
Save 22.8%GIA | 5.56ct | Round | L | VVS2 | Excellent
From $65,755
Compare at $85,196
Save 21.4%GIA | 5.5ct | Round | K | SI1 | Excellent
From $70,538
Compare at $89,710
Save 13.9%GIA | 5.5ct | Round | I | SI1 | Ideal
From $75,426
Compare at $87,553
Save 23%GIA | 5.5ct | Round | J | SI1 | Excellent
From $75,826
Compare at $98,441
Save 16.8%GIA | 5.51ct | Round | J | SI1 | Ideal
From $77,547
Compare at $93,225
GIA | 5.53ct | Round | J | SI1 | Excellent
From $80,748
Compare at $97,456
GIA | 5.53ct | Round | J | VS2 | Excellent
From $80,830
Compare at $93,820
Save 23%GIA | 5.52ct | Round | K | VS1 | Excellent
From $80,984
Compare at $105,225
Save 21.4%GIA | 5.59ct | Round | J | VVS2 | Very Good
From $81,930
Compare at $104,192
Save 22.6%GIA | 5.53ct | Round | J | VS2 | Excellent
From $86,276
Compare at $111,421
Save 13.8%GIA | 5.5ct | Round | F | SI2 | Excellent
From $88,550
Compare at $102,776
GIA | 5.51ct | Round | J | VVS2 | Ideal
From $89,065
Compare at $96,366
GIA | 5.51ct | Round | J | SI1 | Excellent
From $90,512
Compare at $109,233
GIA | 5.58ct | Round | I | SI1 | Excellent
From $92,895
Compare at $99,888
GIA | 5.58ct | Round | I | SI1 | Excellent
From $94,665
Compare at $114,241
Save 21%GIA | 5.51ct | Round | E | SI2 | Excellent
From $99,770
Compare at $126,222
Save 18.8%GIA | 5.53ct | Round | H | SI2 | Excellent
From $99,818
Compare at $122,883
Save 36.5%GIA | 5.51ct | Round | J | VVS2 | Excellent
From $99,922
Compare at $157,366
GIA | 5.51ct | Round | H | SI2 | Excellent
From $100,390
Compare at $107,556
Save 31.4%GIA | 5.5ct | Round | I | VS2 | Ideal
From $100,803
Compare at $146,858
Save 21.4%GIA | 5.52ct | Round | I | SI2 | Excellent
From $107,557
Compare at $136,771
GIA | 5.51ct | Round | I | VS2 | Excellent
From $108,324
Compare at $110,643
Save 17.8%GIA | 5.55ct | Round | E | SI1 | Excellent
From $116,925
Compare at $142,318
GIA | 5.51ct | Round | I | VS1 | Excellent
From $119,428
Compare at $122,564
IGI | 5.5ct | Round | H | VVS1 | Excellent
From $125,200
Compare at $135,863
Save 22.4%GIA | 5.58ct | Round | H | VS2 | Excellent
From $126,247
Compare at $162,764
Save 11.8%GIA | 5.52ct | Round | I | VVS1 | Excellent
From $131,404
Compare at $148,950
GIA | 5.52ct | Round | I | VVS2 | Excellent
From $133,738
Compare at $134,008
GIA | 5.52ct | Round | I | VVS2 | Ideal
From $133,738
Compare at $134,008
Save 11.8%GIA | 5.53ct | Round | G | VS1 | Excellent
From $137,493
Compare at $155,848
GIA | 5.51ct | Round | E | VS1 | Excellent
From $144,948
Compare at $145,600
GIA | 5.58ct | Round | G | VS2 | Excellent
From $145,241
Compare at $160,019
Save 27.5%GIA | 5.5ct | Round | D | SI1 | Excellent
From $150,455
Compare at $207,413
Save 28.1%GIA | 5.5ct | Round | H | VVS2 | Excellent
From $156,460
Compare at $217,707
GIA | 5.52ct | Round | G | VS2 | Ideal
From $159,680
Compare at $176,777
Save 17.7%GIA | 5.53ct | Round | H | VVS1 | Excellent
From $171,518
Compare at $208,430
Save 24.2%GIA | 5.54ct | Round | E | VS1 | Excellent
From $175,990
Compare at $232,097
Save 22.4%GIA | 5.51ct | Round | G | VS2 | Excellent
From $184,103
Compare at $237,380
Save 22.4%GIA | 5.5ct | Round | G | VS2 | Excellent
From $186,140
Compare at $239,948
Save 28.3%GIA | 5.52ct | Round | D | VVS2 | Excellent
From $186,148
Compare at $259,472
Save 22.4%GIA | 5.54ct | Round | D | VS2 | Excellent
From $189,274
Compare at $243,987
Save 31.9%GIA | 5.5ct | Round | E | VS1 | Excellent
From $199,743
Compare at $293,341
GIA | 5.59ct | Round | D | VS2 | Excellent
From $224,710
Compare at $232,413
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 $410,683 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 $109,170 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 58 comparable stones in this segment. Prices start around $3,542 and go up to $414,225.
Based on the latest market data, the average asking price is about $127,868 with a median around $109,170.
The observed spread is roughly $410,683 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 completed market data, the fair market benchmark is $127,868. The median price is $109,170, 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 $410,683 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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Tracking Natural inventory for 5.5 carat Round diamonds.