0.4 Carat Oval Natural Diamond Prices Comparison
As of May 2026, 0.4 carat oval natural diamonds usually range from $230 to $1,640, with an average price of $741.In the last month, prices for these diamonds are down 1.6%.Compare 1,534 verified listings across 8 retailers tracked by CaratRadar.
0.4 Carat Oval Natural Diamond Market Overview
CaratRadar currently tracks 1,534 verified 0.4-carat oval natural diamonds listed across 8 online retailers. Prices in this segment range from $230 to $1,640, with an average asking price of $741 and a median of $708.
The price spread of $1,410 (86.0% 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.
1,534 diamonds tracked in this segment
Price range: $230 to $1,640
Average price: $741
Median price: $708
Available across 8 retailers
Savings potential: up to 86.0%
Price Range Overview
As of May 29, 2026Real market range for this carat, shape, and diamond type.
1,534
$230
$741
$708
$1,640
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 36%GIA | 0.41ct | Oval | K | SI2 | Excellent
From $268
Compare at $419
Save 35.4%GIA | 0.41ct | Oval | K | SI1 | Excellent
From $274
Compare at $424
Save 11.9%GIA | 0.41ct | Oval | K | SI1 | Very Good
From $298
Compare at $338
Save 15.7%GIA | 0.42ct | Oval | K | VS2 | Excellent
From $312
Compare at $370
Save 17.6%GIA | 0.42ct | Oval | K | VS2 | Good
From $323
Compare at $392
Save 28.5%GIA | 0.43ct | Oval | L | VVS1 | Excellent
From $328
Compare at $459
Save 27%GIA | 0.44ct | Oval | L | VVS1 | Excellent
From $335
Compare at $459
GIA | 0.41ct | Oval | K | SI1 | Excellent
From $343
Compare at $374
Save 23.1%GIA | 0.43ct | Oval | J | SI1 | Excellent
From $347
Compare at $451
Save 20.2%GIA | 0.42ct | Oval | K | SI1 | Ideal
From $358
Compare at $449
Save 26.6%GIA | 0.41ct | Oval | I | SI2 | Excellent
From $361
Compare at $492
GIA | 0.41ct | Oval | J | SI1 | Excellent
From $363
Compare at $375
IGI | 0.42ct | Oval | J | VS1 | Very Good
From $377
Compare at $403
Save 15.3%GIA | 0.41ct | Oval | K | VS2 | Excellent
From $377
Compare at $445
Save 15.3%GIA | 0.41ct | Oval | H | SI1 | Excellent
From $377
Compare at $445
Save 10.6%GIA | 0.41ct | Oval | J | SI1 | Ideal
From $377
Compare at $422
Save 26.4%GIA | 0.44ct | Oval | K | VS1 | Excellent
From $378
Compare at $514
Save 16.6%GIA | 0.42ct | Oval | J | SI2 | Excellent
From $381
Compare at $457
Save 13.4%GIA | 0.43ct | Oval | J | VS2 | Ideal
From $382
Compare at $441
Save 14.1%GIA | 0.42ct | Oval | I | VS2 | Ideal
From $384
Compare at $447
IGI | 0.41ct | Oval | J | SI1 | Very Good
From $385
Compare at $412
IGI | 0.41ct | Oval | I | SI1 | Ideal
From $387
Compare at $395
Save 26.1%GIA | 0.42ct | Oval | I | VS2 | Excellent
From $390
Compare at $528
Save 38.6%GIA | 0.42ct | Oval | I | VS2 | Very Good
From $390
Compare at $635
Save 12.1%GIA | 0.43ct | Oval | J | VVS2 | Excellent
From $392
Compare at $446
Save 12.5%GIA | 0.41ct | Oval | J | SI1 | Excellent
From $392
Compare at $448
Save 18.5%GIA | 0.41ct | Oval | I | SI2 | Excellent
From $392
Compare at $481
IGI | 0.44ct | Oval | J | VS1 | Very Good
From $395
Compare at $422
Save 22.9%GIA | 0.43ct | Oval | I | SI2 | Excellent
From $395
Compare at $512
Save 30.2%GIA | 0.43ct | Oval | I | VS2 | Very Good
From $398
Compare at $570
Save 32%GIA | 0.43ct | Oval | I | VS2 | Ideal
From $398
Compare at $585
GIA | 0.43ct | Oval | F | SI1 | Ideal
From $404
Compare at $435
Save 16.2%GIA | 0.43ct | Oval | I | VS1 | Very Good
From $408
Compare at $487
Save 23.2%GIA | 0.45ct | Oval | I | SI1 | Excellent
From $410
Compare at $534
GIA | 0.41ct | Oval | H | SI2 | Very Good
From $411
Compare at $443
Save 21.9%GIA | 0.45ct | Oval | J | VS1 | Excellent
From $412
Compare at $528
Save 23.4%GIA | 0.41ct | Oval | J | VVS1 | Very Good
From $412
Compare at $538
IGI | 0.41ct | Oval | J | VVS1 | Very Good
From $415
Compare at $447
GIA | 0.42ct | Oval | I | VVS1 | Excellent
From $416
Compare at $449
Save 47.9%GIA | 0.48ct | Oval | K | SI1 | Excellent
From $418
Compare at $802
Save 16.2%GIA | 0.41ct | Oval | I | VS2 | Excellent
From $418
Compare at $499
Save 16.8%GIA | 0.46ct | Oval | I | VS2 | Ideal
From $420
Compare at $505
GIA | 0.45ct | Oval | H | SI2 | Ideal
From $421
Compare at $453
Save 21.4%GIA | 0.45ct | Oval | I | SI1 | Ideal
From $422
Compare at $537
GIA | 0.41ct | Oval | F | SI2 | Excellent
From $422
Compare at $443
Save 23.5%GIA | 0.46ct | Oval | I | VS2 | Excellent
From $424
Compare at $554
GIA | 0.43ct | Oval | G | VS2 | Ideal
From $424
Compare at $458
Save 26.5%GIA | 0.42ct | Oval | F | SI1 | Very Good
From $430
Compare at $585
GIA | 0.47ct | Oval | H | SI2 | Very Good
From $430
Compare at $468
Save 14.5%GIA | 0.41ct | Oval | H | SI1 | Ideal
From $431
Compare at $504
Entry pricing in this category starts around $230.
What to Know When Shopping for 0.4 Carat Oval Natural Diamonds
- Always compare identical certified diamonds across retailers. Identical certificate numbers can have price differences of $1,410 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 $708 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.
- Oval diamonds can appear larger than rounds of the same carat weight due to their elongated face-up area. Watch for the bow-tie effect in lower-quality cuts.
Frequently Asked Questions
We currently track 1,534 comparable stones in this segment. Prices start around $230 and go up to $1,640.
Based on the latest market data, the average asking price is about $741 with a median around $708.
The observed spread is roughly $1,410 across tracked listings, which is about 86.0% 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 $741. The median price is $708, 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 $1,410 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 0.4 carat Oval diamonds.