0.4 Carat Marquise Natural Diamond Prices Comparison
As of April 2026, 0.4 carat marquise natural diamonds usually range from $226 to $1,843, with an average price of $853.In the last month, prices for these diamonds are down 2.5%.Compare 634 verified listings across 6 retailers tracked by CaratRadar.
0.4 Carat Marquise Natural Diamond Market Overview
CaratRadar currently tracks 634 verified 0.4-carat marquise natural diamonds listed across 6 online retailers. Prices in this segment range from $226 to $1,843, with an average asking price of $853 and a median of $835.
The price spread of $1,617 (87.7% 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.
634 diamonds tracked in this segment
Price range: $226 to $1,843
Average price: $853
Median price: $835
Available across 6 retailers
Savings potential: up to 87.7%
Price Range Overview
As of Apr 14, 2026Real market range for this carat, shape, and diamond type.
634
$226
$853
$835
$1,843
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 | 0.41ct | Marquise | I | SI2 | Excellent
From $655
Compare at $701
Save 14.1%GIA | 0.41ct | Marquise | D | SI1 | Excellent
From $992
Compare at $1,155
Save 12.8%GIA | 0.41ct | Marquise | G | SI1 | Excellent
From $985
Compare at $1,130
GIA | 0.41ct | Marquise | D | VS2 | Excellent
From $860
Compare at $906
GIA | 0.41ct | Marquise | H | VVS1 | Excellent
From $701
Compare at $723
GIA | 0.41ct | Marquise | I | VS2 | Excellent
From $654
Compare at $705
Save 10.5%GIA | 0.41ct | Marquise | I | VS2 | Excellent
From $543
Compare at $606
GIA | 0.41ct | Marquise | H | VS2 | Excellent
From $669
Compare at $730
GIA | 0.41ct | Marquise | D | VVS1 | Excellent
From $719
Compare at $743
Save 15.8%GIA | 0.41ct | Marquise | F | SI1 | Excellent
From $750
Compare at $891
GIA | 0.41ct | Marquise | D | SI2 | Excellent
From $639
Compare at $664
GIA | 0.41ct | Marquise | F | VS1 | Excellent
From $731
Compare at $764
Save 15.5%GIA | 0.41ct | Marquise | G | SI1 | Very Good
From $519
Compare at $614
Save 12.9%GIA | 0.41ct | Marquise | E | VS1 | Excellent
From $810
Compare at $930
GIA | 0.41ct | Marquise | D | SI1 | Excellent
From $647
Compare at $697
Save 27.9%GIA | 0.41ct | Marquise | E | VVS2 | Good
From $1,203
Compare at $1,668
Save 26.6%GIA | 0.41ct | Marquise | E | VS1 | Excellent
From $726
Compare at $989
Save 12.6%GIA | 0.41ct | Marquise | G | VS1 | Excellent
From $702
Compare at $804
Save 16.9%GIA | 0.41ct | Marquise | D | VVS2 | Excellent
From $934
Compare at $1,123
GIA | 0.41ct | Marquise | E | VVS1 | Excellent
From $691
Compare at $714
GIA | 0.41ct | Marquise | E | VS2 | Excellent
From $711
Compare at $776
Save 12.5%GIA | 0.41ct | Marquise | D | SI1 | Excellent
From $655
Compare at $748
Save 16.8%GIA | 0.41ct | Marquise | E | VVS2 | Excellent
From $880
Compare at $1,057
GIA | 0.41ct | Marquise | F | VS2 | Excellent
From $656
Compare at $676
GIA | 0.41ct | Marquise | E | IF | Excellent
From $1,103
Compare at $1,135
Save 10.9%GIA | 0.41ct | Marquise | F | IF | Very Good
From $1,040
Compare at $1,167
Save 18.3%GIA | 0.41ct | Marquise | F | VS1 | Ideal
From $680
Compare at $832
Save 16%GIA | 0.41ct | Marquise | K | VS2 | Excellent
From $455
Compare at $541
GIA | 0.41ct | Marquise | H | VS2 | Excellent
From $549
Compare at $580
GIA | 0.41ct | Marquise | D | VS2 | Excellent
From $670
Compare at $690
Save 20.1%GIA | 0.41ct | Marquise | D | VVS2 | Excellent
From $1,048
Compare at $1,312
Save 16.9%GIA | 0.41ct | Marquise | E | VVS2 | Ideal
From $944
Compare at $1,136
GIA | 0.41ct | Marquise | E | VVS2 | Excellent
From $834
Compare at $881
GIA | 0.41ct | Marquise | J | VS2 | Excellent
From $535
Compare at $565
Save 21.1%GIA | 0.41ct | Marquise | G | VS2 | Very Good
From $671
Compare at $851
GIA | 0.41ct | Marquise | D | VS1 | Excellent
From $981
Compare at $985
Save 12.5%GIA | 0.41ct | Marquise | E | VVS1 | Very Good
From $701
Compare at $801
Save 12.6%GIA | 0.41ct | Marquise | E | VVS2 | Excellent
From $779
Compare at $891
Save 13.3%GIA | 0.41ct | Marquise | D | VS1 | Ideal
From $750
Compare at $865
Save 13.2%GIA | 0.41ct | Marquise | E | VVS1 | Excellent
From $928
Compare at $1,070
Save 24.8%GIA | 0.41ct | Marquise | D | VS2 | Excellent
From $717
Compare at $953
Save 18.5%GIA | 0.41ct | Marquise | J | VS1 | Excellent
From $708
Compare at $868
Save 19.1%GIA | 0.41ct | Marquise | E | SI1 | Ideal
From $664
Compare at $821
Save 13.7%GIA | 0.41ct | Marquise | J | VVS1 | Ideal
From $708
Compare at $820
Save 10.9%GIA | 0.41ct | Marquise | D | VS1 | Excellent
From $885
Compare at $994
GIA | 0.41ct | Marquise | E | VVS1 | Excellent
From $825
Compare at $898
GIA | 0.41ct | Marquise | D | VVS1 | Very Good
From $1,083
Compare at $1,085
GIA | 0.41ct | Marquise | E | VVS1 | Excellent
From $825
Compare at $898
GIA | 0.41ct | Marquise | E | VVS1 | Very Good
From $995
Save 12.5%GIA | 0.41ct | Marquise | F | VS1 | Excellent
From $660
Compare at $754
Entry pricing in this category starts around $226.
What to Know When Shopping for 0.4 Carat Marquise Natural Diamonds
- Always compare identical certified diamonds across retailers. Identical certificate numbers can have price differences of $1,617 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 $835 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.
- Marquise diamonds maximize carat weight face-up and appear larger than their actual weight. Check symmetry carefully.
Frequently Asked Questions
We currently track 634 comparable stones in this segment. Prices start around $226 and go up to $1,843.
Based on the latest market data, the average asking price is about $853 with a median around $835.
The observed spread is roughly $1,617 across tracked listings, which is about 87.7% 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 $835, 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 $1,617 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 Marquise diamonds.