1 Carat Marquise Natural Diamond Prices Comparison
As of May 2026, 1 carat marquise natural diamonds usually range from $710 to $11,474, with an average price of $4,379.In the last month, prices for these diamonds are up 0.1%.Compare 2,158 verified listings across 11 retailers tracked by CaratRadar.
1 Carat Marquise Natural Diamond Market Overview
CaratRadar currently tracks 2,158 verified 1-carat marquise natural diamonds listed across 11 online retailers. Prices in this segment range from $710 to $11,474, with an average asking price of $4,379 and a median of $4,140.
The price spread of $10,764 (93.8% 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.
2,158 diamonds tracked in this segment
Price range: $710 to $11,474
Average price: $4,379
Median price: $4,140
Available across 11 retailers
Savings potential: up to 93.8%
Price Range Overview
As of May 29, 2026Real market range for this carat, shape, and diamond type.
2,158
$710
$4,379
$4,140
$11,474
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 35.2%GIA | 1.02ct | Marquise | K | SI2 | Ideal
From $969
Compare at $1,496
Save 35.2%GIA | 1.01ct | Marquise | L | SI2 | Ideal
From $1,057
Compare at $1,631
GIA | 1.01ct | Marquise | L | SI1 | Good
From $1,200
Compare at $1,317
Save 33.8%GIA | 1ct | Marquise | L | SI2 | Good
From $1,229
Compare at $1,857
Save 17.5%HRD | 1.01ct | Marquise | J | SI2 | Ideal
From $1,229
Compare at $1,490
Save 33.9%GIA | 1ct | Marquise | L | SI1 | Very Good
From $1,238
Compare at $1,872
Save 17.8%IGI | 1.01ct | Marquise | J | SI2 | Ideal
From $1,241
Compare at $1,510
Save 35.2%GIA | 1.01ct | Marquise | K | VS2 | Good
From $1,249
Compare at $1,926
Save 17.8%IGI | 1ct | Marquise | I | SI2 | Very Good
From $1,258
Compare at $1,530
Save 35.1%GIA | 1ct | Marquise | K | SI2 | Ideal
From $1,283
Compare at $1,978
Save 35.2%GIA | 1.01ct | Marquise | L | SI2 | Ideal
From $1,291
Compare at $1,991
Save 35.2%GIA | 1.01ct | Marquise | L | VVS2 | Ideal
From $1,292
Compare at $1,993
Save 17.6%IGI | 1.01ct | Marquise | I | SI2 | Ideal
From $1,302
Compare at $1,580
IGI | 1ct | Marquise | K | SI1 | Very Good
From $1,306
Compare at $1,445
Save 35.2%GIA | 1.04ct | Marquise | L | VVS1 | Ideal
From $1,307
Compare at $2,016
Save 17.8%IGI | 1ct | Marquise | J | SI2 | Ideal
From $1,307
Compare at $1,590
Save 17.4%HRD | 1.01ct | Marquise | J | SI2 | Ideal
From $1,321
Compare at $1,600
Save 35.2%GIA | 1ct | Marquise | K | SI2 | Ideal
From $1,327
Compare at $2,047
Save 12.8%GIA | 1ct | Marquise | K | SI2 | Good
From $1,328
Compare at $1,523
Save 35.2%GIA | 1.02ct | Marquise | L | SI2 | Excellent
From $1,330
Compare at $2,053
Save 35.1%GIA | 1.01ct | Marquise | L | VS1 | Excellent
From $1,334
Compare at $2,057
Save 35.2%GIA | 1.01ct | Marquise | K | SI2 | Excellent
From $1,344
Compare at $2,074
GIA | 1ct | Marquise | L | SI2 | Excellent
From $1,348
Compare at $1,477
IGI | 1.01ct | Marquise | I | VS2 | Very Good
From $1,353
Compare at $1,450
Save 37.6%GIA | 1.02ct | Marquise | L | SI2 | Excellent
From $1,358
Compare at $2,178
Save 33.8%GIA | 1.02ct | Marquise | K | SI2 | Very Good
From $1,367
Compare at $2,065
Save 17.5%HRD | 1.01ct | Marquise | I | SI2 | Ideal
From $1,377
Compare at $1,670
Save 33.8%GIA | 1ct | Marquise | K | SI2 | Excellent
From $1,411
Compare at $2,132
IGI | 1ct | Marquise | K | SI1 | Very Good
From $1,413
Compare at $1,415
Save 17.6%IGI | 1ct | Marquise | I | SI2 | Ideal
From $1,433
Compare at $1,740
IGI | 1ct | Marquise | K | VS2 | Very Good
From $1,437
Compare at $1,530
IGI | 1ct | Marquise | K | VS2 | Very Good
From $1,437
Compare at $1,530
Save 35.2%GIA | 1.01ct | Marquise | K | SI2 | Very Good
From $1,439
Compare at $2,219
Save 15.2%GIA | 1.02ct | Marquise | K | VS1 | Good
From $1,439
Compare at $1,698
Save 35.2%GIA | 1.01ct | Marquise | K | SI2 | Excellent
From $1,452
Compare at $2,240
Save 33.8%GIA | 1.01ct | Marquise | L | VS2 | Very Good
From $1,460
Compare at $2,207
GIA | 1ct | Marquise | K | SI2 | Very Good
From $1,464
Compare at $1,511
GIA | 1.01ct | Marquise | L | SI1 | Excellent
From $1,467
Compare at $1,574
Save 37%GIA | 1ct | Marquise | L | VVS2 | Excellent
From $1,468
Compare at $2,330
Save 35.2%GIA | 1ct | Marquise | K | SI2 | Excellent
From $1,474
Compare at $2,273
Save 14.2%HRD | 1ct | Marquise | J | SI1 | Ideal
From $1,476
Compare at $1,719
Save 35.2%GIA | 1ct | Marquise | K | SI2 | Very Good
From $1,482
Compare at $2,286
Save 26.4%GIA | 1ct | Marquise | L | SI2 | Very Good
From $1,488
Compare at $2,020
IGI | 1ct | Marquise | K | VS2 | Very Good
From $1,499
Compare at $1,620
IGI | 1ct | Marquise | K | SI1 | Very Good
From $1,501
Compare at $1,545
Save 34.5%GIA | 1.01ct | Marquise | K | SI2 | Very Good
From $1,505
Compare at $2,298
IGI | 1.03ct | Marquise | K | SI1 | Very Good
From $1,516
Compare at $1,520
Save 17.2%IGI | 1ct | Marquise | H | SI2 | Ideal
From $1,524
Compare at $1,840
Save 35.2%GIA | 1.03ct | Marquise | K | SI2 | Excellent
From $1,528
Compare at $2,357
Save 24.2%GIA | 1.01ct | Marquise | K | SI2 | Very Good
From $1,536
Compare at $2,027
Entry pricing in this category starts around $710.
What to Know When Shopping for 1 Carat Marquise Natural Diamonds
- Always compare identical certified diamonds across retailers. Identical certificate numbers can have price differences of $10,764 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 $4,140 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 2,158 comparable stones in this segment. Prices start around $710 and go up to $11,474.
Based on the latest market data, the average asking price is about $4,379 with a median around $4,140.
The observed spread is roughly $10,764 across tracked listings, which is about 93.8% 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 $4,379. The median price is $4,140, 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 11 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 $10,764 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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