3.8 Carat Round Natural Diamond Prices Comparison
As of February 2026, 3.8 carat round natural diamonds usually range from $894 to $132,812, with an average price of $38,198.In the last month, prices for these diamonds are down 4.8%.Compare 72 verified listings across 6 retailers tracked by CaratRadar.
3.8 Carat Round Natural Diamond Market Overview
CaratRadar currently tracks 72 verified 3.8-carat round natural diamonds listed across 6 online retailers. Prices in this segment range from $894 to $132,812, with an average asking price of $38,198 and a median of $36,628.
The price spread of $131,918 (99.3% 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.
72 diamonds tracked in this segment
Price range: $894 to $132,812
Average price: $38,198
Median price: $36,628
Available across 6 retailers
Savings potential: up to 99.3%
Price Range Overview
As of Feb 28, 2026Real market range for this carat, shape, and diamond type.
72
$894
$38,198
$36,628
$132,812
Price History
Price Comparison Matrix
Live Listings
See all listingsCompare current retailer offers for this exact segment and open any listing for full details.
GIASave 13.3%3.75ct | Round | L | SI1 | Excellent
From $17,688
Compare at $20,410
GIASave 35%3.75ct | Round | K | VS1 | Excellent
From $36,509
Compare at $56,160
GIASave 14.8%3.75ct | Round | D | VVS2 | Excellent
From $116,511
Compare at $136,752
IGISave 70.9%3.75ct | Round | E | VS1 | Excellent
From $906
Compare at $3,110
GIA3.75ct | Round | L | VVS1 | Excellent
From $24,123
Compare at $25,989
GIASave 24.2%3.75ct | Round | J | SI1 | Excellent
From $36,422
Compare at $48,042
GIASave 23.9%3.75ct | Round | J | SI2 | Excellent
From $37,962
Compare at $49,907
IGISave 71.9%3.76ct | Round | E | VS1 | Ideal
From $907
Compare at $3,230
IGISave 30.9%3.76ct | Round | E | VS1 | Ideal
From $2,175
Compare at $3,146
GIA3.76ct | Round | K | SI1 | Excellent
From $33,242
Compare at $33,661
GIASave 14.5%3.76ct | Round | I | VVS2 | Excellent
From $51,759
Compare at $60,566
GIASave 10.1%3.76ct | Round | I | VVS1 | Ideal
From $53,945
Compare at $60,025
IGISave 86.2%3.77ct | Round | E | VVS2 | Ideal
From $1,294
Compare at $9,350
GIA3.77ct | Round | H | VVS2 | Excellent
From $76,419
Compare at $84,836
GIA3.77ct | Round | L | SI1 | Ideal
From $20,576
Compare at $21,335
IGISave 70.7%3.77ct | Round | D | VVS2 | Excellent
From $1,335
Compare at $4,560
GIASave 14.5%3.77ct | Round | I | VVS2 | Very Good
From $55,191
Compare at $64,578
IGISave 69.8%3.77ct | Round | F | VS1 | Ideal
From $898
Compare at $2,975
IGISave 70.9%3.78ct | Round | E | VS1 | Excellent
From $911
Compare at $3,135
IGISave 86.2%3.78ct | Round | E | VVS2 | Ideal
From $1,298
Compare at $9,370
GIA3.78ct | Round | J | VS2 | Very Good
From $50,152
Compare at $52,485
GIA3.78ct | Round | L | VS2 | Excellent
From $36,746
Compare at $39,955
IGISave 69.9%3.78ct | Round | F | VS1 | Ideal
From $900
Compare at $2,985
3.78ct | Round | E | VS2 | Excellent
From $98,447
Compare at $118,803
GIA3.78ct | Round | H | VS1 | Excellent
From $98,262
Compare at $103,456
3.79ct | Round | J | SI1 | Excellent
From $41,406
Compare at $51,247
3.79ct | Round | I | VS2 | Excellent
From $56,661
Compare at $70,102
GIASave 75.6%3.79ct | Round | E | VVS2 | Excellent
From $2,404
Compare at $9,840
GIASave 16.2%3.79ct | Round | I | VS1 | Excellent
From $66,515
Compare at $79,359
IGISave 68.7%3.8ct | Round | F | VS1 | Excellent
From $903
Compare at $2,885
GIA3.8ct | Round | G | VS1 | Excellent
From $89,480
Compare at $94,253
GIASave 14.9%3.8ct | Round | J | SI2 | Ideal
From $32,316
Compare at $37,995
3.8ct | Round | I | VS2 | Excellent
From $51,042
Compare at $63,157
GIA3.8ct | Round | I | SI1 | Excellent
From $59,422
Compare at $62,278
GIA3.8ct | Round | E | VVS1 | Excellent
From $121,803
Compare at $125,670
IGISave 70.8%3.8ct | Round | E | VS2 | Ideal
From $899
Compare at $3,075
GIASave 57.5%3.8ct | Round | L | VS1 | Excellent
From $27,784
Compare at $65,333
3.8ct | Round | E | SI2 | Excellent
From $65,801
Compare at $79,430
GIA3.8ct | Round | G | VVS1 | Ideal
From $93,833
Compare at $104,152
GIASave 36.8%3.8ct | Round | K | SI1 | Excellent
From $34,214
Compare at $54,106
GIA3.81ct | Round | F | SI2 | Excellent
From $74,246
Compare at $79,585
3.81ct | Round | K | SI2 | Excellent
From $29,751
Compare at $36,841
3.81ct | Round | F | SI1 | Excellent
From $71,279
Compare at $86,036
GIA3.81ct | Round | J | VS2 | Excellent
From $48,670
Compare at $51,097
GIA3.81ct | Round | K | VS2 | Excellent
From $47,953
Compare at $50,351
GIA3.81ct | Round | I | VS1 | Excellent
From $85,447
Compare at $90,026
GIASave 15.9%3.81ct | Round | D | SI2 | Very Good
From $66,568
Compare at $79,183
GIASave 11.6%3.81ct | Round | H | VS2 | Excellent
From $57,910
Compare at $65,482
3.81ct | Round | G | VS2 | Excellent
From $83,034
Compare at $100,214
3.81ct | Round | I | VS2 | Excellent
From $49,328
Compare at $54,867
Entry pricing in this category starts around $894.
What to Know When Shopping for 3.8 Carat Round Natural Diamonds
- Always compare identical certified diamonds across retailers. Identical certificate numbers can have price differences of $131,918 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 $36,628 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 72 comparable stones in this segment. Prices start around $894 and go up to $132,812.
Based on the latest market data, the average asking price is about $38,198 with a median around $36,628.
The observed spread is roughly $131,918 across tracked listings, which is about 99.3% 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 $36,628, 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 6 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 $131,918 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 3.8 carat Round diamonds.