3.7 Carat Round Natural Diamond Prices Comparison
As of July 2026, 3.7 carat round natural diamonds usually range from $1,868 to $188,703, with an average price of $58,809.In the last month, prices for these diamonds are up 0.8%.Compare 76 verified listings across 8 retailers tracked by CaratRadar.
3.7 Carat Round Natural Diamond Market Overview
CaratRadar currently tracks 76 verified 3.7-carat round natural diamonds listed across 8 online retailers. Prices in this segment range from $1,868 to $188,703, with an average asking price of $58,809 and a median of $51,828.
The price spread of $186,836 (99.0% 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.
76 diamonds tracked in this segment
Price range: $1,868 to $188,703
Average price: $58,809
Median price: $51,828
Available across 8 retailers
Savings potential: up to 99.0%
Price Range Overview
As of Jul 11, 2026Real market range for this carat, shape, and diamond type.
76
$1,868
$58,809
$51,828
$188,703
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 | 3.73ct | Round | L | VS2 | Ideal
From $18,113
Compare at $18,670
GIA | 3.73ct | Round | L | SI1 | Excellent
From $18,853
Compare at $20,505
Save 38.9%GIA | 3.71ct | Round | K | SI2 | Ideal
From $21,064
Compare at $34,463
GIA | 3.75ct | Round | L | VVS1 | Excellent
From $22,449
Compare at $24,793
IGI | 3.75ct | Round | K | VVS2 | Excellent
From $22,783
Compare at $22,785
Save 14%IGI | 3.71ct | Round | K | VVS1 | Excellent
From $23,151
Compare at $26,911
Save 18.1%GIA | 3.77ct | Round | L | SI1 | Ideal
From $24,057
Compare at $29,384
GIA | 3.71ct | Round | I | SI2 | Ideal
From $24,462
Compare at $26,430
IGI | 3.71ct | Round | J | SI2 | Ideal
From $25,973
Compare at $26,477
Save 24.8%GIA | 3.79ct | Round | L | VS1 | Excellent
From $28,405
Compare at $37,769
Save 10.6%GIA | 3.71ct | Round | K | SI2 | Excellent
From $29,310
Compare at $32,792
Save 36.2%GIA | 3.72ct | Round | J | SI2 | Excellent
From $31,287
Compare at $49,012
GIA | 3.71ct | Round | K | VS2 | Very Good
From $31,383
Compare at $31,969
GIA | 3.71ct | Round | J | SI2 | Good
From $33,457
Compare at $34,709
Save 33.8%GIA | 3.71ct | Round | J | VS2 | Excellent
From $34,282
Compare at $51,774
Save 28.9%GIA | 3.71ct | Round | J | SI1 | Excellent
From $34,424
Compare at $48,438
GIA | 3.73ct | Round | J | SI1 | Excellent
From $34,583
Compare at $35,898
GIA | 3.71ct | Round | K | SI1 | Excellent
From $34,667
Compare at $37,297
Save 11.3%GIA | 3.73ct | Round | J | SI2 | Excellent
From $35,178
Compare at $39,668
Save 11.6%GIA | 3.75ct | Round | J | SI1 | Excellent
From $35,372
Compare at $40,031
GIA | 3.71ct | Round | J | SI2 | Very Good
From $35,810
Compare at $37,023
GIA | 3.73ct | Round | J | SI1 | Very Good
From $36,695
Compare at $36,799
Save 14.9%GIA | 3.72ct | Round | I | SI1 | Ideal
From $36,727
Compare at $43,134
GIA | 3.73ct | Round | K | VS1 | Excellent
From $36,795
Compare at $40,752
GIA | 3.75ct | Round | J | SI2 | Excellent
From $37,538
Compare at $39,761
Save 33.6%GIA | 3.74ct | Round | J | VS2 | Excellent
From $37,934
Compare at $57,138
GIA | 3.71ct | Round | I | SI2 | Excellent
From $38,259
Compare at $38,369
GIA | 3.76ct | Round | J | SI2 | Ideal
From $38,781
Compare at $40,336
GIA | 3.71ct | Round | J | SI1 | Excellent
From $40,389
Compare at $43,452
GIA | 3.71ct | Round | J | VS1 | Excellent
From $40,452
Compare at $41,822
GIA | 3.79ct | Round | J | SI1 | Excellent
From $40,711
Compare at $43,926
GIA | 3.74ct | Round | I | SI2 | Excellent
From $41,548
Compare at $46,159
IGI | 3.71ct | Round | H | VS1 | Excellent
From $41,740
GIA | 3.76ct | Round | J | SI2 | Ideal
From $42,088
Compare at $45,041
Save 34.2%GIA | 3.73ct | Round | I | SI1 | Excellent
From $42,266
Compare at $64,216
GIA | 3.72ct | Round | I | SI1 | Excellent
From $42,506
Compare at $44,273
Save 34.1%GIA | 3.71ct | Round | J | VS1 | Excellent
From $43,112
Compare at $65,412
Save 10.1%GIA | 3.71ct | Round | I | VS2 | Ideal
From $44,469
Compare at $49,492
GIA | 3.71ct | Round | I | VS2 | Excellent
From $46,316
Compare at $50,211
Save 34.9%GIA | 3.77ct | Round | I | VVS2 | Very Good
From $46,730
Compare at $71,798
Save 32.9%GIA | 3.77ct | Round | K | IF | Excellent
From $47,388
Compare at $70,592
GIA | 3.71ct | Round | H | SI1 | Ideal
From $47,810
Compare at $48,382
Save 32.2%GIA | 3.71ct | Round | I | VVS1 | Excellent
From $50,847
Compare at $74,998
GIA | 3.71ct | Round | G | SI2 | Excellent
From $52,169
Compare at $55,205
GIA | 3.73ct | Round | I | VS2 | Excellent
From $54,074
Compare at $57,222
GIA | 3.79ct | Round | I | VS2 | Excellent
From $55,207
Compare at $59,124
Save 32.9%GIA | 3.77ct | Round | G | VS1 | Excellent
From $55,372
Compare at $82,519
Save 33.5%GIA | 3.71ct | Round | H | VS1 | Ideal
From $55,743
Compare at $83,816
Save 32.2%GIA | 3.76ct | Round | I | VS2 | Excellent
From $57,987
Compare at $85,529
GIA | 3.71ct | Round | H | SI1 | Excellent
From $60,312
Compare at $60,315
Entry pricing in this category starts around $1,868.
What to Know When Shopping for 3.7 Carat Round Natural Diamonds
- Always compare identical certified diamonds across retailers. Identical certificate numbers can have price differences of $186,836 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 $51,828 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 76 comparable stones in this segment. Prices start around $1,868 and go up to $188,703.
Based on the latest market data, the average asking price is about $58,809 with a median around $51,828.
The observed spread is roughly $186,836 across tracked listings, which is about 99.0% 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 $58,809. The median price is $51,828, 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 $186,836 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 3.7 carat Round diamonds.