3.1 Carat Round Natural Diamond Prices Comparison
As of April 2026, 3.1 carat round natural diamonds usually range from $1,785 to $161,682, with an average price of $47,845.In the last month, prices for these diamonds are down 0.3%.Compare 176 verified listings across 7 retailers tracked by CaratRadar.
3.1 Carat Round Natural Diamond Market Overview
CaratRadar currently tracks 176 verified 3.1-carat round natural diamonds listed across 7 online retailers. Prices in this segment range from $1,785 to $161,682, with an average asking price of $47,845 and a median of $41,960.
The price spread of $159,897 (98.9% 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.
176 diamonds tracked in this segment
Price range: $1,785 to $161,682
Average price: $47,845
Median price: $41,960
Available across 7 retailers
Savings potential: up to 98.9%
Price Range Overview
As of Apr 14, 2026Real market range for this carat, shape, and diamond type.
176
$1,785
$47,845
$41,960
$161,682
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 13.7%GIA | 3.11ct | Round | J | SI1 | Ideal
From $28,398
Compare at $32,891
GIA | 3.11ct | Round | L | VS2 | Excellent
From $23,478
Compare at $24,415
GIA | 3.11ct | Round | G | VVS2 | Excellent
From $83,545
Compare at $100,830
GIA | 3.11ct | Round | D | VVS1 | Excellent
From $106,558
Compare at $108,837
GIA | 3.11ct | Round | E | VS2 | Ideal
From $60,487
Compare at $64,694
Save 13.7%GIA | 3.11ct | Round | K | VS1 | Ideal
From $27,010
Compare at $31,284
Save 14.6%GIA | 3.11ct | Round | D | SI1 | Excellent
From $47,067
Compare at $55,082
GIA | 3.11ct | Round | K | VS2 | Ideal
From $19,529
Compare at $20,600
Save 30.2%GIA | 3.11ct | Round | E | SI1 | Excellent
From $32,560
Compare at $46,651
GIA | 3.11ct | Round | K | VS2 | Very Good
From $22,232
Compare at $23,614
GIA | 3.11ct | Round | E | VVS1 | Excellent
From $91,871
Compare at $104,606
GIA | 3.11ct | Round | J | SI2 | Excellent
From $27,796
Compare at $31,905
GIA | 3.11ct | Round | F | VVS1 | Excellent
From $109,337
Compare at $124,517
Save 25.1%GIA | 3.11ct | Round | K | SI1 | Excellent
From $22,370
Compare at $29,879
Save 16.6%GIA | 3.11ct | Round | D | SI2 | Excellent
From $39,094
Compare at $46,889
Save 25.2%GIA | 3.11ct | Round | H | VVS2 | Excellent
From $45,524
Compare at $60,878
Save 14.6%GIA | 3.11ct | Round | H | SI1 | Excellent
From $36,624
Compare at $42,876
Save 17.1%GIA | 3.11ct | Round | J | VS2 | Ideal
From $25,133
Compare at $30,302
IGI | 3.11ct | Round | J | VS2 | Excellent
From $14,585
Compare at $15,511
GIA | 3.12ct | Round | G | VVS2 | Excellent
From $58,266
Compare at $58,412
Save 15.6%GIA | 3.12ct | Round | J | VS2 | Excellent
From $27,986
Compare at $33,157
Save 14.1%GIA | 3.12ct | Round | F | SI2 | Excellent
From $41,067
Compare at $47,785
Save 25.2%GIA | 3.12ct | Round | K | SI2 | Excellent
From $20,797
Compare at $27,809
Save 15.6%GIA | 3.12ct | Round | J | SI2 | Ideal
From $23,681
Compare at $28,066
GIA | 3.12ct | Round | L | VVS2 | Excellent
From $21,338
Compare at $22,377
Save 14.1%GIA | 3.12ct | Round | I | VVS2 | Excellent
From $42,598
Compare at $49,566
GIA | 3.12ct | Round | D | VVS1 | Excellent
From $105,919
Compare at $114,930
Save 14.1%GIA | 3.12ct | Round | G | VVS1 | Excellent
From $58,655
Compare at $68,251
Save 37.4%GIA | 3.12ct | Round | F | VS2 | Ideal
From $51,753
Compare at $82,678
Save 16.2%GIA | 3.12ct | Round | E | SI2 | Excellent
From $32,569
Compare at $38,861
GIA | 3.12ct | Round | D | FL | Excellent
From $150,755
Compare at $167,759
Save 25.2%GIA | 3.12ct | Round | H | VS1 | Excellent
From $43,770
Compare at $58,523
GIA | 3.12ct | Round | F | IF | Excellent
From $61,240
Compare at $63,377
Save 16.8%GIA | 3.12ct | Round | E | VVS2 | Excellent
From $95,207
Compare at $114,476
Save 15.6%GIA | 3.12ct | Round | J | SI2 | Excellent
From $23,681
Compare at $28,066
GIA | 3.12ct | Round | F | VS1 | Excellent
From $56,486
Compare at $61,174
GIA | 3.13ct | Round | L | VVS1 | Ideal
From $23,740
Compare at $24,707
Save 14.1%GIA | 3.13ct | Round | D | SI1 | Excellent
From $42,185
Compare at $49,089
Save 38.4%GIA | 3.13ct | Round | D | VVS1 | Ideal
From $64,600
Compare at $104,817
GIA | 3.13ct | Round | E | VVS2 | Excellent
From $111,284
Compare at $126,737
Save 20.1%GIA | 3.13ct | Round | H | VS2 | Ideal
From $39,850
Compare at $49,883
Save 17%GIA | 3.13ct | Round | I | SI2 | Excellent
From $23,361
Compare at $28,156
Save 30.3%GIA | 3.13ct | Round | D | VS2 | Excellent
From $42,476
Compare at $60,941
GIA | 3.13ct | Round | G | VS2 | Ideal
From $48,835
Compare at $52,175
Save 14.5%GIA | 3.13ct | Round | D | FL | Ideal
From $129,126
Compare at $150,950
GIA | 3.13ct | Round | D | VVS1 | Ideal
From $69,360
Compare at $70,098
Save 11.1%GIA | 3.13ct | Round | K | VVS1 | Excellent
From $22,703
Compare at $25,527
Save 17.1%GIA | 3.13ct | Round | K | SI1 | Excellent
From $26,952
Compare at $32,505
Save 15.9%GIA | 3.13ct | Round | L | SI2 | Excellent
From $21,492
Compare at $25,565
GIA | 3.13ct | Round | F | VVS1 | Excellent
From $52,189
Compare at $52,305
Entry pricing in this category starts around $1,785.
What to Know When Shopping for 3.1 Carat Round Natural Diamonds
- Always compare identical certified diamonds across retailers. Identical certificate numbers can have price differences of $159,897 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 $41,960 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 176 comparable stones in this segment. Prices start around $1,785 and go up to $161,682.
Based on the latest market data, the average asking price is about $47,845 with a median around $41,960.
The observed spread is roughly $159,897 across tracked listings, which is about 98.9% 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 $41,960, 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 $159,897 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 3.1 carat Round diamonds.