2.5 Carat Marquise Natural Diamond Prices Comparison
As of February 2026, 2.5 carat marquise natural diamonds usually range from $698 to $63,544, with an average price of $22,642.In the last month, prices for these diamonds are down 2.1%.Compare 46 verified listings across 6 retailers tracked by CaratRadar.
2.5 Carat Marquise Natural Diamond Market Overview
CaratRadar currently tracks 46 verified 2.5-carat marquise natural diamonds listed across 6 online retailers. Prices in this segment range from $698 to $63,544, with an average asking price of $22,642 and a median of $25,199.
The price spread of $62,846 (98.9% 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.
46 diamonds tracked in this segment
Price range: $698 to $63,544
Average price: $22,642
Median price: $25,199
Available across 6 retailers
Savings potential: up to 98.9%
Price Range Overview
As of Feb 28, 2026Real market range for this carat, shape, and diamond type.
46
$698
$22,642
$25,199
$63,544
Price History
Price Comparison Matrix
Live Listings
See all listingsCompare current retailer offers for this exact segment and open any listing for full details.
IGISave 64.7%2.48ct | Marquise | E | VS2 | Very Good
From $708
Compare at $2,005
GIA2.49ct | Marquise | E | VVS1 | Good
From $56,708
Compare at $58,959
GIA2.5ct | Marquise | D | SI1 | Excellent
From $40,990
Compare at $43,662
GIASave 17.1%2.5ct | Marquise | D | IF | Very Good
From $50,760
Compare at $61,214
GIASave 10.2%2.5ct | Marquise | E | SI1 | Excellent
From $38,733
Compare at $43,125
GIA2.5ct | Marquise | I | SI2 | Excellent
From $27,656
Compare at $30,094
GIA2.5ct | Marquise | J | SI1 | Ideal
From $25,818
Compare at $28,088
IGISave 29.2%2.5ct | Marquise | F | VS1 | Very Good
From $827
Compare at $1,167
IGISave 58.1%2.5ct | Marquise | E | VS1 | Very Good
From $1,451
Compare at $3,467
IGISave 52.4%2.5ct | Marquise | E | VS1 | Very Good
From $822
Compare at $1,726
IGISave 22.1%2.5ct | Marquise | E | VS2 | Very Good
From $702
Compare at $900
GIASave 35.8%2.5ct | Marquise | D | VS2 | Very Good
From $48,961
Compare at $76,320
GIASave 41.2%2.5ct | Marquise | D | SI1 | Ideal
From $38,360
Compare at $65,279
GIASave 12.9%2.5ct | Marquise | F | VS2 | Good
From $28,350
Compare at $32,550
GIA2.5ct | Marquise | G | VS2 | Excellent
From $43,373
Compare at $45,077
GIASave 18.2%2.5ct | Marquise | I | VS1 | Excellent
From $24,581
Compare at $30,034
GIASave 12.9%2.51ct | Marquise | E | VVS1 | Excellent
From $56,716
Compare at $65,112
IGISave 83.8%2.51ct | Marquise | D | VVS2 | Very Good
From $981
Compare at $6,050
IGISave 85.1%2.51ct | Marquise | F | VVS2 | Very Good
From $754
Compare at $5,050
2.51ct | Marquise | G | SI1 | Excellent
From $31,305
Compare at $36,004
GIA2.51ct | Marquise | L | SI2 | Very Good
From $12,412
Compare at $12,658
GIASave 12.5%2.51ct | Marquise | J | VS1 | Good
From $18,653
Compare at $21,306
GIA2.51ct | Marquise | D | VS2 | Excellent
From $46,249
Compare at $46,481
GIA2.51ct | Marquise | D | SI2 | Ideal
From $26,680
Compare at $28,758
GIASave 14.2%2.51ct | Marquise | K | SI2 | Excellent
From $12,944
Compare at $15,087
GIASave 11.8%2.51ct | Marquise | E | SI2 | Good
From $28,674
Compare at $32,509
GIA2.51ct | Marquise | D | VS1 | Excellent
From $40,916
Compare at $41,694
IGISave 83.3%2.51ct | Marquise | D | VVS2 | Very Good
From $1,011
Compare at $6,050
IGISave 79.7%2.51ct | Marquise | F | VS2 | Very Good
From $724
Compare at $3,560
IGISave 83.8%2.51ct | Marquise | D | VVS2 | Very Good
From $981
Compare at $6,050
IGISave 83.8%2.51ct | Marquise | D | VVS2 | Very Good
From $981
Compare at $6,050
GIASave 23%2.51ct | Marquise | G | SI1 | Very Good
From $30,958
Compare at $40,210
GIASave 11.3%2.51ct | Marquise | H | VS2 | Excellent
From $31,370
Compare at $35,361
GIA2.51ct | Marquise | D | VVS1 | Excellent
From $63,544
Compare at $69,420
GIA2.52ct | Marquise | I | VS1 | Excellent
From $35,548
Compare at $39,142
GIA2.52ct | Marquise | D | SI2 | Excellent
From $24,330
Compare at $25,410
IGISave 84.5%2.52ct | Marquise | F | VS1 | Very Good
From $705
Compare at $4,550
GIA2.52ct | Marquise | D | VS2 | Good
From $43,925
Compare at $46,279
GIASave 11.6%2.52ct | Marquise | E | VS2 | Excellent
From $44,268
Compare at $50,060
GIASave 16.5%2.52ct | Marquise | I | SI1 | Good
From $17,501
Compare at $20,965
IGISave 84.5%2.53ct | Marquise | F | VS1 | Very Good
From $707
Compare at $4,570
IGISave 59.8%2.53ct | Marquise | F | VS2 | Very Good
From $698
Compare at $1,736
IGISave 79.2%2.53ct | Marquise | E | VS2 | Very Good
From $736
Compare at $3,540
GIASave 12.7%2.53ct | Marquise | E | VS1 | Good
From $35,281
Compare at $40,417
IGISave 32.8%2.54ct | Marquise | E | VVS1 | Very Good
From $2,293
Compare at $3,413
IGISave 79.9%2.54ct | Marquise | E | VVS2 | Very Good
From $883
Compare at $4,390
Entry pricing in this category starts around $698.
What to Know When Shopping for 2.5 Carat Marquise Natural Diamonds
- Always compare identical certified diamonds across retailers. Identical certificate numbers can have price differences of $62,846 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 $25,199 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 46 comparable stones in this segment. Prices start around $698 and go up to $63,544.
Based on the latest market data, the average asking price is about $22,642 with a median around $25,199.
The observed spread is roughly $62,846 across tracked listings, which is about 98.9% 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 $25,199, 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 $62,846 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 2.5 carat Marquise diamonds.