0.5 Carat Marquise Natural Diamond Prices Comparison
As of April 2026, 0.5 carat marquise natural diamonds usually range from $288 to $2,720, with an average price of $1,154.In the last month, prices for these diamonds are down 2.8%.Compare 3,673 verified listings across 6 retailers tracked by CaratRadar.
0.5 Carat Marquise Natural Diamond Market Overview
CaratRadar currently tracks 3,673 verified 0.5-carat marquise natural diamonds listed across 6 online retailers. Prices in this segment range from $288 to $2,720, with an average asking price of $1,154 and a median of $1,125.
The price spread of $2,432 (89.4% 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.
3,673 diamonds tracked in this segment
Price range: $288 to $2,720
Average price: $1,154
Median price: $1,125
Available across 6 retailers
Savings potential: up to 89.4%
Price Range Overview
As of Apr 14, 2026Real market range for this carat, shape, and diamond type.
3,673
$288
$1,154
$1,125
$2,720
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 25.7%GIA | 0.5ct | Marquise | D | VS1 | Very Good
From $1,298
Compare at $1,747
Save 16.3%GIA | 0.5ct | Marquise | F | SI1 | Very Good
From $717
Compare at $857
GIA | 0.5ct | Marquise | D | VS2 | Excellent
From $1,024
Compare at $1,035
Save 24.6%GIA | 0.5ct | Marquise | I | VS2 | Ideal
From $685
Compare at $909
Save 20%GIA | 0.5ct | Marquise | G | SI2 | Ideal
From $670
Compare at $838
Save 23.1%GIA | 0.5ct | Marquise | G | VS1 | Ideal
From $840
Compare at $1,092
Save 31.4%GIA | 0.5ct | Marquise | D | VVS2 | Ideal
From $1,223
Compare at $1,783
Save 19.8%GIA | 0.5ct | Marquise | F | VVS2 | Ideal
From $1,165
Compare at $1,452
Save 24.3%GIA | 0.5ct | Marquise | I | VS2 | Excellent
From $655
Compare at $865
Save 19.8%GIA | 0.5ct | Marquise | D | VS1 | Ideal
From $1,151
Compare at $1,435
Save 16.9%GIA | 0.5ct | Marquise | D | SI1 | Excellent
From $856
Compare at $1,030
Save 22%GIA | 0.5ct | Marquise | D | VS1 | Ideal
From $910
Compare at $1,167
Save 16.8%GIA | 0.5ct | Marquise | G | VS2 | Ideal
From $914
Compare at $1,098
Save 20.1%GIA | 0.5ct | Marquise | E | SI1 | Ideal
From $917
Compare at $1,148
Save 16.9%GIA | 0.5ct | Marquise | H | VS2 | Excellent
From $941
Compare at $1,132
Save 22.6%GIA | 0.5ct | Marquise | D | IF | Excellent
From $1,569
Compare at $2,028
Save 20.2%GIA | 0.5ct | Marquise | E | VS2 | Ideal
From $1,021
Compare at $1,279
Save 29.1%GIA | 0.5ct | Marquise | E | VVS1 | Ideal
From $1,220
Compare at $1,720
Save 21.5%GIA | 0.5ct | Marquise | E | VVS2 | Excellent
From $1,146
Compare at $1,460
Save 19.8%GIA | 0.5ct | Marquise | E | VS2 | Ideal
From $1,143
Compare at $1,425
Save 26.4%GIA | 0.5ct | Marquise | I | IF | Excellent
From $1,105
Compare at $1,501
Save 20.4%GIA | 0.5ct | Marquise | G | VS2 | Excellent
From $1,665
Compare at $2,091
Save 62.2%GIA | 0.5ct | Marquise | D | VVS1 | Excellent
From $995
Compare at $2,630
Save 15.7%GIA | 0.5ct | Marquise | E | VS2 | Very Good
From $920
Compare at $1,092
Save 20%GIA | 0.5ct | Marquise | D | VVS2 | Excellent
From $1,289
Compare at $1,611
Save 12.8%GIA | 0.5ct | Marquise | D | VS1 | Excellent
From $1,276
Compare at $1,463
Save 62.1%GIA | 0.5ct | Marquise | D | VVS1 | Excellent
From $996
Compare at $2,630
GIA | 0.5ct | Marquise | D | SI1 | Excellent
From $1,205
Compare at $1,301
Save 52%GIA | 0.5ct | Marquise | D | VVS1 | Good
From $1,166
Compare at $2,430
Save 25%GIA | 0.5ct | Marquise | D | VS2 | Excellent
From $1,171
Compare at $1,562
Save 62.3%GIA | 0.5ct | Marquise | D | VVS1 | Excellent
From $991
Compare at $2,630
Save 10.1%GIA | 0.5ct | Marquise | G | VS1 | Excellent
From $1,286
Compare at $1,430
Save 62.8%GIA | 0.5ct | Marquise | D | VVS1 | Excellent
From $1,020
Compare at $2,740
Save 54.9%GIA | 0.5ct | Marquise | D | VVS2 | Excellent
From $1,200
Compare at $2,660
Save 61.6%GIA | 0.5ct | Marquise | D | VVS2 | Excellent
From $942
Compare at $2,450
Save 15.9%GIA | 0.5ct | Marquise | D | SI2 | Excellent
From $892
Compare at $1,060
Save 58.3%GIA | 0.5ct | Marquise | D | VVS1 | Very Good
From $1,151
Compare at $2,760
Save 56.3%GIA | 0.5ct | Marquise | E | VVS2 | Excellent
From $987
Compare at $2,260
Save 12.1%GIA | 0.5ct | Marquise | D | VS2 | Excellent
From $1,126
Compare at $1,280
Save 59.7%GIA | 0.5ct | Marquise | D | VVS1 | Excellent
From $1,162
Compare at $2,880
Save 56%GIA | 0.5ct | Marquise | D | VVS2 | Very Good
From $1,192
Compare at $2,710
Save 52.8%GIA | 0.5ct | Marquise | F | VVS1 | Excellent
From $1,072
Compare at $2,270
Save 52%GIA | 0.5ct | Marquise | D | VVS2 | Excellent
From $1,176
Compare at $2,450
GIA | 0.5ct | Marquise | D | VVS2 | Excellent
From $1,436
Compare at $1,525
Save 56.8%GIA | 0.5ct | Marquise | D | VVS1 | Excellent
From $1,352
Compare at $3,130
Save 61.7%GIA | 0.5ct | Marquise | D | VVS2 | Excellent
From $942
Compare at $2,460
Save 28.6%GIA | 0.5ct | Marquise | G | SI1 | Excellent
From $906
Compare at $1,269
Save 54.5%GIA | 0.5ct | Marquise | E | VVS1 | Very Good
From $1,123
Compare at $2,470
Save 56%GIA | 0.5ct | Marquise | D | VVS2 | Excellent
From $1,244
Compare at $2,830
GIA | 0.5ct | Marquise | D | VS2 | Excellent
From $1,174
Compare at $1,302
Entry pricing in this category starts around $288.
What to Know When Shopping for 0.5 Carat Marquise Natural Diamonds
- Always compare identical certified diamonds across retailers. Identical certificate numbers can have price differences of $2,432 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 $1,125 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 3,673 comparable stones in this segment. Prices start around $288 and go up to $2,720.
Based on the latest market data, the average asking price is about $1,154 with a median around $1,125.
The observed spread is roughly $2,432 across tracked listings, which is about 89.4% 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 $1,125, 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 $2,432 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 0.5 carat Marquise diamonds.