3 Carat Marquise Natural Diamond Prices Comparison
As of June 2026, 3 carat marquise natural diamonds usually range from $2,473 to $128,517, with an average price of $50,495.In the last month, prices for these diamonds are down 1.6%.Compare 102 verified listings across 7 retailers tracked by CaratRadar.
3 Carat Marquise Natural Diamond Market Overview
CaratRadar currently tracks 102 verified 3-carat marquise natural diamonds listed across 7 online retailers. Prices in this segment range from $2,473 to $128,517, with an average asking price of $50,495 and a median of $49,544.
The price spread of $126,045 (98.1% 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.
102 diamonds tracked in this segment
Price range: $2,473 to $128,517
Average price: $50,495
Median price: $49,544
Available across 7 retailers
Savings potential: up to 98.1%
Price Range Overview
As of Jun 11, 2026Real market range for this carat, shape, and diamond type.
102
$2,473
$50,495
$49,544
$128,517
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 41.7%GIA | 3.04ct | Marquise | L | SI2 | Excellent
From $14,308
Compare at $24,532
Save 33.9%GIA | 3.01ct | Marquise | K | SI2 | Ideal
From $21,373
Compare at $32,348
Save 26.3%GIA | 3.02ct | Marquise | L | VS2 | Excellent
From $21,799
Compare at $29,575
Save 28.1%GIA | 3.02ct | Marquise | K | SI2 | Very Good
From $23,472
Compare at $32,662
GIA | 3.01ct | Marquise | K | IF | Very Good
From $25,758
Compare at $27,033
GIA | 3.01ct | Marquise | J | SI2 | Excellent
From $27,237
Compare at $27,452
GIA | 3.01ct | Marquise | J | SI2 | Excellent
From $28,296
Compare at $30,838
GIA | 3ct | Marquise | J | SI1 | Good
From $28,388
Compare at $29,710
Save 34.4%GIA | 3.01ct | Marquise | J | SI2 | Ideal
From $29,179
Compare at $44,511
GIA | 3.01ct | Marquise | J | SI1 | Ideal
From $30,219
Compare at $31,561
GIA | 3.01ct | Marquise | J | SI1 | Very Good
From $31,946
Compare at $33,521
IGI | 3.01ct | Marquise | I | SI1 | Very Good
From $32,505
Compare at $36,120
GIA | 3.02ct | Marquise | I | SI2 | Very Good
From $33,051
Compare at $33,305
Save 16.9%GIA | 3.01ct | Marquise | I | SI2 | Excellent
From $33,107
Compare at $39,863
Save 32.4%GIA | 3ct | Marquise | I | SI2 | Excellent
From $33,482
Compare at $49,535
GIA | 3.01ct | Marquise | J | VS2 | Good
From $33,566
Compare at $35,154
Save 14.7%GIA | 3.01ct | Marquise | I | SI1 | Good
From $33,687
Compare at $39,477
Save 40%GIA | 3.01ct | Marquise | D | SI2 | Very Good
From $33,749
Compare at $56,293
GIA | 3.03ct | Marquise | H | SI2 | Excellent
From $33,843
Compare at $35,116
Save 33.2%GIA | 3.03ct | Marquise | I | SI2 | Excellent
From $34,004
Compare at $50,920
Save 31.5%GIA | 3.01ct | Marquise | H | SI2 | Very Good
From $35,499
Compare at $51,797
GIA | 3.01ct | Marquise | J | VVS1 | Excellent
From $35,775
Compare at $39,073
GIA | 3.03ct | Marquise | J | VVS1 | Very Good
From $36,220
Compare at $37,389
Save 11.6%GIA | 3.02ct | Marquise | I | SI1 | Ideal
From $36,747
Compare at $41,583
GIA | 3.01ct | Marquise | D | SI2 | Ideal
From $36,864
Compare at $39,660
GIA | 3.09ct | Marquise | F | SI2 | Excellent
From $37,003
Compare at $37,876
IGI | 3.01ct | Marquise | I | VS1 | Very Good
From $37,580
Compare at $38,130
Save 34.8%GIA | 3.01ct | Marquise | E | SI2 | Very Good
From $38,056
Compare at $58,386
Save 13.5%GIA | 3.02ct | Marquise | I | VVS2 | Ideal
From $39,176
Compare at $45,281
Save 30.7%GIA | 3.01ct | Marquise | F | SI2 | Very Good
From $39,212
Compare at $56,599
GIA | 3.01ct | Marquise | E | SI2 | Very Good
From $39,226
Compare at $39,348
Save 31.2%GIA | 3.01ct | Marquise | F | SI2 | Ideal
From $39,290
Compare at $57,073
GIA | 3.04ct | Marquise | I | SI1 | Excellent
From $39,399
Compare at $41,954
Save 25.3%GIA | 3.06ct | Marquise | J | VVS1 | Ideal
From $39,717
Compare at $53,145
Save 25.2%GIA | 3.02ct | Marquise | F | SI2 | Very Good
From $40,794
Compare at $54,542
GIA | 3.03ct | Marquise | G | SI2 | Ideal
From $41,148
Compare at $44,914
Save 12.8%GIA | 3.06ct | Marquise | D | SI2 | Excellent
From $42,478
Compare at $48,699
GIA | 3.01ct | Marquise | D | SI2 | Very Good
From $42,911
Compare at $44,237
GIA | 3.01ct | Marquise | F | SI2 | Ideal
From $43,691
Compare at $44,717
GIA | 3ct | Marquise | E | SI1 | Ideal
From $43,741
Compare at $46,430
GIA | 3.01ct | Marquise | G | SI1 | Ideal
From $44,203
Compare at $46,585
Save 32.1%GIA | 3.01ct | Marquise | G | SI1 | Ideal
From $44,203
Compare at $65,145
Save 12.3%GIA | 3.01ct | Marquise | J | IF | Excellent
From $44,389
Compare at $50,599
Save 36.3%GIA | 3.03ct | Marquise | D | SI1 | Very Good
From $44,487
Compare at $69,861
GIA | 3ct | Marquise | H | SI1 | Excellent
From $44,595
Compare at $46,405
GIA | 3.02ct | Marquise | F | SI1 | Ideal
From $44,782
Compare at $47,573
GIA | 3ct | Marquise | E | SI2 | Excellent
From $45,090
Compare at $46,405
Save 30.7%GIA | 3.02ct | Marquise | E | SI1 | Excellent
From $45,651
Compare at $65,880
GIA | 3.04ct | Marquise | D | SI2 | Very Good
From $45,812
Compare at $47,810
Save 12.9%GIA | 3.02ct | Marquise | I | VVS1 | Excellent
From $46,175
Compare at $52,985
Entry pricing in this category starts around $2,473.
What to Know When Shopping for 3 Carat Marquise Natural Diamonds
- Always compare identical certified diamonds across retailers. Identical certificate numbers can have price differences of $126,045 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 $49,544 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 102 comparable stones in this segment. Prices start around $2,473 and go up to $128,517.
Based on the latest market data, the average asking price is about $50,495 with a median around $49,544.
The observed spread is roughly $126,045 across tracked listings, which is about 98.1% 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 $50,495. The median price is $49,544, 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 7 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 $126,045 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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