0.4 Carat Radiant Natural Diamond Prices Comparison
As of February 2026, 0.4 carat radiant natural diamonds usually range from $376 to $2,237, with an average price of $742.In the last month, prices for these diamonds are down 1.4%.Compare 160 verified listings across 4 retailers tracked by CaratRadar.
0.4 Carat Radiant Natural Diamond Market Overview
CaratRadar currently tracks 160 verified 0.4-carat radiant natural diamonds listed across 4 online retailers. Prices in this segment range from $376 to $2,237, with an average asking price of $742 and a median of $676.
The price spread of $1,861 (83.2% 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.
160 diamonds tracked in this segment
Price range: $376 to $2,237
Average price: $742
Median price: $676
Available across 4 retailers
Savings potential: up to 83.2%
Price Range Overview
As of Feb 28, 2026Real market range for this carat, shape, and diamond type.
160
$376
$742
$676
$2,237
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 21%0.35ct | Radiant | J | VS1 | Excellent
From $403
Compare at $510
GIA0.35ct | Radiant | G | VVS1 | Excellent
From $420
Compare at $421
GIA0.35ct | Radiant | G | VVS1 | Excellent
From $458
Compare at $461
GIASave 21.5%0.35ct | Radiant | H | VVS2 | Ideal
From $440
Compare at $560
GIASave 13.4%0.35ct | Radiant | G | SI1 | Ideal
From $494
Compare at $570
0.35ct | Radiant | H | VS1 | Excellent
From $430
Compare at $550
GIA0.35ct | Radiant | E | VVS1 | Excellent
From $649
Compare at $666
GIA0.36ct | Radiant | G | VVS2 | Excellent
From $470
Compare at $494
GIASave 10.3%0.36ct | Radiant | H | IF | Ideal
From $619
Compare at $690
0.36ct | Radiant | I | VS1 | Excellent
From $610
Compare at $770
GIA0.36ct | Radiant | G | VVS1 | Excellent
From $478
Compare at $509
GIASave 12.7%0.37ct | Radiant | J | VS1 | Excellent
From $506
Compare at $580
GIA0.37ct | Radiant | G | VVS2 | Very Good
From $503
Compare at $514
0.37ct | Radiant | H | VS1 | Excellent
From $610
Compare at $782
GIA0.37ct | Radiant | D | IF | Excellent
From $877
Compare at $924
GIASave 14.7%0.37ct | Radiant | E | SI1 | Excellent
From $520
Compare at $610
GIASave 14.9%0.37ct | Radiant | G | VS1 | Excellent
From $562
Compare at $660
GIASave 17.6%0.39ct | Radiant | D | IF | Excellent
From $874
Compare at $1,060
GIASave 15.4%0.39ct | Radiant | D | VS1 | Excellent
From $736
Compare at $870
GIASave 12.5%0.39ct | Radiant | F | VS2 | Excellent
From $612
Compare at $700
GIASave 39%0.4ct | Radiant | H | VS1 | Excellent
From $712
Compare at $1,167
GIA0.4ct | Radiant | D | VVS1 | Excellent
From $996
Compare at $1,082
GIASave 23.7%0.4ct | Radiant | D | VS2 | Very Good
From $540
Compare at $707
GIA0.4ct | Radiant | D | VVS1 | Ideal
From $843
Compare at $899
GIASave 23.2%0.4ct | Radiant | G | VS1 | Ideal
From $460
Compare at $599
GIA0.4ct | Radiant | G | VVS1 | Excellent
From $606
Compare at $620
GIASave 46.7%0.4ct | Radiant | H | VVS2 | Very Good
From $465
Compare at $873
GIASave 36.2%0.4ct | Radiant | D | VVS2 | Excellent
From $884
Compare at $1,385
GIASave 24%0.4ct | Radiant | I | VS1 | Ideal
From $530
Compare at $698
GIASave 36.1%0.4ct | Radiant | E | IF | Ideal
From $891
Compare at $1,393
GIASave 20.8%0.4ct | Radiant | J | VVS1 | Excellent
From $440
Compare at $556
GIASave 33.2%0.4ct | Radiant | D | VVS2 | Very Good
From $1,161
Compare at $1,737
GIASave 23.2%0.4ct | Radiant | J | VVS1 | Excellent
From $450
Compare at $586
GIASave 41.8%0.4ct | Radiant | D | IF | Excellent
From $1,173
Compare at $2,017
GIASave 13.4%0.4ct | Radiant | F | VS2 | Excellent
From $739
Compare at $854
GIASave 23.2%0.4ct | Radiant | F | VS2 | Excellent
From $546
Compare at $710
GIASave 24%0.4ct | Radiant | H | VVS2 | Ideal
From $560
Compare at $737
GIASave 12.3%0.4ct | Radiant | E | SI1 | Very Good
From $581
Compare at $663
GIASave 32.7%0.4ct | Radiant | D | VVS1 | Excellent
From $1,199
Compare at $1,782
GIASave 33.4%0.4ct | Radiant | F | VVS2 | Excellent
From $1,045
Compare at $1,569
GIASave 12.8%0.4ct | Radiant | H | VVS2 | Excellent
From $606
Compare at $695
GIASave 46.1%0.4ct | Radiant | I | SI1 | Excellent
From $458
Compare at $850
GIASave 25.4%0.4ct | Radiant | H | VVS2 | Ideal
From $650
Compare at $871
GIASave 34.2%0.4ct | Radiant | G | VVS1 | Very Good
From $1,033
Compare at $1,568
GIA0.4ct | Radiant | D | VVS1 | Very Good
From $878
Compare at $897
GIASave 34.2%0.4ct | Radiant | E | VS1 | Excellent
From $996
Compare at $1,513
GIASave 33.8%0.4ct | Radiant | F | VVS1 | Excellent
From $1,113
Compare at $1,681
GIASave 40.4%0.4ct | Radiant | H | VS2 | Very Good
From $637
Compare at $1,068
GIASave 41.9%0.4ct | Radiant | E | VS2 | Excellent
From $636
Compare at $1,095
GIASave 34%0.4ct | Radiant | F | SI2 | Good
From $376
Compare at $570
Entry pricing in this category starts around $376.
What to Know When Shopping for 0.4 Carat Radiant Natural Diamonds
- Always compare identical certified diamonds across retailers. Identical certificate numbers can have price differences of $1,861 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 $676 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.
- Radiant cuts combine the elegance of emerald shapes with the brilliance of round cuts, offering good value per carat.
Frequently Asked Questions
We currently track 160 comparable stones in this segment. Prices start around $376 and go up to $2,237.
Based on the latest market data, the average asking price is about $742 with a median around $676.
The observed spread is roughly $1,861 across tracked listings, which is about 83.2% 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 $676, 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 4 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 $1,861 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 Radiant diamonds.