4 Carat Marquise Natural Diamond Prices Comparison
As of October 2026, 4 carat marquise natural diamonds in the 4.00–4.49 carat benchmark range usually range from $1,710 to $309,719, with an average price of $85,850.In the last month, prices for these diamonds are down 1.6%.Compare 85 verified listings across 10 retailers tracked by CaratRadar.
4 Carat Marquise Natural Diamond Market Overview
CaratRadar currently tracks 85 verified 4-carat marquise natural diamonds in the 4.00–4.49 carat benchmark range, listed across 10 online retailers. Prices in this segment range from $1,710 to $309,719, with an average asking price of $85,850 and a median of $85,305.
The price spread of $308,009 (99.4% 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 use the same benchmark range throughout the page and 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.
85 diamonds tracked in the 4.00–4.49 carat benchmark
Price range: $1,710 to $309,719
Average price: $85,850
Median price: $85,305
Available across 10 retailers
Savings potential: up to 99.4%
Price Range Overview
As of Oct 14, 2026Real market range for this carat, shape, and diamond type.
85
$1,710
$85,850
$85,305
$309,719
Price History
Price Comparison Matrix
Live Listings
See all listingsCompare current retailer offers in the same benchmark range and open any listing for full details.
IGI | 4ct | Marquise | J | SI2 | Very Good
From $15,964
Compare at $16,455
Save 19.7%HRD | 4.01ct | Marquise | I | SI2 | Ideal
From $17,380
Compare at $21,631
IGI | 4.01ct | Marquise | J | SI2 | Ideal
From $25,340
Compare at $26,317
Save 10.8%IGI | 4.01ct | Marquise | J | SI1 | Very Good
From $28,936
Compare at $32,447
Save 23.3%GIA | 4.01ct | Marquise | L | SI1 | Very Good
From $29,731
Compare at $38,787
Save 20%GIA | 4.03ct | Marquise | L | VS2 | Very Good
From $33,426
Compare at $41,760
Save 17.2%GIA | 4ct | Marquise | K | SI2 | Very Good
From $35,062
Compare at $42,324
Save 24.1%GIA | 4.23ct | Marquise | L | VS1 | Very Good
From $35,110
Compare at $46,260
Save 12.2%IGI | 4.07ct | Marquise | I | SI1 | Ideal
From $36,374
Compare at $41,412
IGI | 4.01ct | Marquise | I | VS2 | Very Good
From $36,423
Compare at $40,428
Save 16.4%GIA | 4.01ct | Marquise | K | SI2 | Ideal
From $37,338
Compare at $44,657
Save 45.7%GIA | 4.01ct | Marquise | I | SI2 | Fair
From $39,340
Compare at $72,502
Save 17.6%GIA | 4.03ct | Marquise | K | SI2 | Ideal
From $39,962
Compare at $48,481
Save 10.4%IGI | 4.02ct | Marquise | I | SI1 | Very Good
From $40,973
Compare at $45,704
GIA | 4.01ct | Marquise | K | SI1 | Excellent
From $42,280
Compare at $46,465
Save 24.3%GIA | 4.38ct | Marquise | K | SI2 | Good
From $43,506
Compare at $57,504
Save 21.9%GIA | 4.02ct | Marquise | J | SI2 | Excellent
From $44,828
Compare at $57,372
GIA | 4.01ct | Marquise | K | SI1 | Excellent
From $45,694
Compare at $50,226
Save 13%GIA | 4.01ct | Marquise | E | SI2 | Very Good
From $46,560
Compare at $53,498
Save 17.6%GIA | 4.07ct | Marquise | J | SI2 | Excellent
From $48,495
Compare at $58,862
Save 14.5%IGI | 4.01ct | Marquise | H | SI1 | Ideal
From $48,860
Compare at $57,121
Save 24.5%GIA | 4.01ct | Marquise | G | SI2 | Good
From $50,956
Compare at $67,481
GIA | 4ct | Marquise | I | SI2 | Excellent
From $51,921
Compare at $57,090
Save 19.4%IGI | 4.06ct | Marquise | G | VVS2 | Very Good
From $56,278
Compare at $69,863
Save 20%GIA | 4.03ct | Marquise | F | SI2 | Excellent
From $56,968
Compare at $71,210
Save 13.3%GIA | 4.01ct | Marquise | D | SI2 | Excellent
From $58,314
Compare at $67,285
GIA | 4.01ct | Marquise | J | VVS2 | Excellent
From $59,324
Compare at $65,608
Save 10.4%IGI | 4.01ct | Marquise | H | VS1 | Very Good
From $59,470
Compare at $66,400
Save 23.5%GIA | 4.01ct | Marquise | H | SI2 | Very Good
From $59,543
Compare at $77,866
Save 10.4%GIA | 4.03ct | Marquise | J | VS1 | Very Good
From $62,251
Compare at $69,499
GIA | 4.02ct | Marquise | E | SI2 | Very Good
From $62,808
Compare at $67,848
Save 23.6%GIA | 4.01ct | Marquise | F | SI2 | Excellent
From $64,792
Compare at $84,846
Save 26.8%GIA | 4.01ct | Marquise | H | VS2 | Good
From $65,148
Compare at $88,962
Save 17%GIA | 4.01ct | Marquise | I | VVS1 | Ideal
From $66,725
Compare at $80,428
Save 23.7%GIA | 4.02ct | Marquise | E | SI2 | Excellent
From $70,040
Compare at $91,824
Save 19.4%IGI | 4.07ct | Marquise | I | VVS1 | Very Good
From $70,474
Compare at $87,486
GIA | 4.13ct | Marquise | J | IF | Ideal
From $70,737
Compare at $78,068
GIA | 4.02ct | Marquise | H | VS2 | Very Good
From $71,167
Compare at $76,853
Save 19.4%GIA | 4.32ct | Marquise | H | SI1 | Excellent
From $72,293
Compare at $89,689
Save 21.8%GIA | 4.38ct | Marquise | J | VS1 | Very Good
From $72,588
Compare at $92,855
Save 28%GIA | 4.01ct | Marquise | G | SI1 | Excellent
From $74,894
Compare at $104,050
Save 19.4%GIA | 4.01ct | Marquise | H | SI1 | Ideal
From $75,999
Compare at $94,349
Save 23.8%GIA | 4ct | Marquise | D | SI1 | Excellent
From $79,138
Compare at $103,921
GIA | 4.07ct | Marquise | E | SI1 | Excellent
From $80,109
Compare at $88,980
Save 16.3%GIA | 4.49ct | Marquise | H | VS2 | Ideal
From $81,103
Compare at $96,881
Save 21.8%GIA | 4.04ct | Marquise | I | VS2 | Very Good
From $81,381
Compare at $104,095
Save 23.9%GIA | 4.19ct | Marquise | G | VS2 | Excellent
From $82,624
Compare at $108,555
Save 19.4%GIA | 4.01ct | Marquise | D | SI1 | Excellent
From $83,288
Compare at $103,394
Save 24.1%GIA | 4ct | Marquise | F | VS2 | Ideal
From $84,265
Compare at $110,964
Save 28%GIA | 4.01ct | Marquise | E | VS1 | Excellent
From $84,670
Compare at $117,528
Entry pricing in this benchmark range starts around $1,710.
What to Know When Shopping for 4 Carat Marquise Natural Diamonds
- Always compare identical certified diamonds across retailers. Identical certificate numbers can have price differences of $308,009 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 $85,305 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 85 comparable stones in the 4.00–4.49 carat benchmark range. Prices start around $1,710 and go up to $309,719.
Based on the latest market data, the average asking price is about $85,850 with a median around $85,305.
The observed spread is roughly $308,009 across tracked listings, which is about 99.4% from highest to lowest offer in the 4.00–4.49 carat benchmark range.
We refresh pricing data daily so these pages stay current with market changes.
Based on completed market data, the fair market benchmark is $85,850. The median price is $85,305, 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 10 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 $308,009 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 the 4.00–4.49 carat Marquise diamond benchmark.