2.5 Carat Marquise Natural Diamond Prices Comparison
As of April 2026, 2.5 carat marquise natural diamonds usually range from $1,335 to $71,605, with an average price of $31,604.In the last month, prices for these diamonds are up 0.8%.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 $1,335 to $71,605, with an average asking price of $31,604 and a median of $30,958.
The price spread of $70,270 (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.
46 diamonds tracked in this segment
Price range: $1,335 to $71,605
Average price: $31,604
Median price: $30,958
Available across 6 retailers
Savings potential: up to 98.1%
Price Range Overview
As of Apr 14, 2026Real market range for this carat, shape, and diamond type.
46
$1,335
$31,604
$30,958
$71,605
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 24.6%GIA | 2.5ct | Marquise | J | SI1 | Ideal
From $21,191
Compare at $28,088
GIA | 2.5ct | Marquise | I | SI1 | Ideal
From $27,210
Compare at $28,418
Save 13.8%GIA | 2.5ct | Marquise | E | VVS1 | Excellent
From $46,185
Compare at $53,562
Save 29.3%GIA | 2.5ct | Marquise | D | VS2 | Very Good
From $56,142
Compare at $79,452
Save 29.3%GIA | 2.5ct | Marquise | D | IF | Very Good
From $45,014
Compare at $63,704
Save 37.1%GIA | 2.5ct | Marquise | J | SI2 | Very Good
From $13,803
Compare at $21,948
GIA | 2.5ct | Marquise | D | FL | Excellent
From $41,724
Compare at $46,324
Save 29%GIA | 2.5ct | Marquise | D | SI1 | Ideal
From $37,410
Compare at $52,698
GIA | 2.5ct | Marquise | G | SI1 | Excellent
From $36,424
Compare at $37,165
GIA | 2.5ct | Marquise | D | SI1 | Excellent
From $39,700
Compare at $41,890
Save 29.3%GIA | 2.5ct | Marquise | D | VS2 | Excellent
From $40,650
Compare at $57,521
Save 37.1%GIA | 2.5ct | Marquise | I | SI2 | Ideal
From $19,130
Compare at $30,420
Save 36.3%GIA | 2.5ct | Marquise | D | VS1 | Good
From $42,919
Compare at $67,340
GIA | 2.5ct | Marquise | F | VVS2 | Excellent
From $43,450
Compare at $45,904
Save 24.6%GIA | 2.5ct | Marquise | I | VS2 | Excellent
From $23,409
Compare at $31,050
Save 18%GIA | 2.5ct | Marquise | I | SI2 | Ideal
From $22,987
Compare at $28,017
IGI | 2.5ct | Marquise | K | VS2 | Very Good
From $11,776
Compare at $11,780
Save 11.9%IGI | 2.5ct | Marquise | I | VS1 | Very Good
From $19,317
Compare at $21,933
IGI | 2.5ct | Marquise | K | SI1 | Very Good
From $10,166
Compare at $10,785
Save 11.9%IGI | 2.5ct | Marquise | H | SI1 | Very Good
From $20,209
Compare at $22,951
GIA | 2.51ct | Marquise | G | SI1 | Excellent
From $31,305
Compare at $36,004
Save 37.1%GIA | 2.51ct | Marquise | D | SI2 | Excellent
From $26,942
Compare at $42,842
Save 17.1%GIA | 2.51ct | Marquise | H | VS2 | Excellent
From $33,026
Compare at $39,860
GIA | 2.51ct | Marquise | D | VVS1 | Excellent
From $55,298
Compare at $60,813
Save 37.1%GIA | 2.51ct | Marquise | F | SI2 | Excellent
From $26,589
Compare at $42,282
Save 16.5%GIA | 2.51ct | Marquise | D | VS2 | Excellent
From $42,294
Compare at $50,669
GIA | 2.51ct | Marquise | D | SI2 | Ideal
From $26,390
Compare at $27,900
GIA | 2.51ct | Marquise | D | VS2 | Excellent
From $43,110
Compare at $45,552
GIA | 2.51ct | Marquise | D | VS2 | Very Good
From $43,480
Compare at $46,169
Save 37.4%GIA | 2.51ct | Marquise | D | VVS1 | Excellent
From $49,673
Compare at $79,356
Save 20.7%GIA | 2.51ct | Marquise | E | VVS1 | Excellent
From $51,325
Compare at $64,760
IGI | 2.51ct | Marquise | J | VS2 | Good
From $11,630
Compare at $12,256
GIA | 2.52ct | Marquise | D | SI2 | Excellent
From $23,350
Compare at $24,210
Save 17.5%GIA | 2.52ct | Marquise | J | VS1 | Good
From $12,806
Compare at $15,529
Save 17.1%GIA | 2.52ct | Marquise | G | SI1 | Very Good
From $28,624
Compare at $34,530
GIA | 2.52ct | Marquise | L | SI2 | Very Good
From $10,759
Compare at $11,131
Save 24.7%GIA | 2.52ct | Marquise | I | VS1 | Excellent
From $29,465
Compare at $39,142
Save 20.1%GIA | 2.52ct | Marquise | D | SI1 | Excellent
From $32,969
Compare at $41,257
Save 20.6%GIA | 2.53ct | Marquise | D | VVS2 | Excellent
From $44,527
Compare at $56,052
Save 11.4%GIA | 2.53ct | Marquise | E | SI1 | Very Good
From $32,415
Compare at $36,566
Save 12%IGI | 2.54ct | Marquise | I | IF | Very Good
From $21,725
Compare at $24,685
Save 14.6%GIA | 2.55ct | Marquise | D | VS2 | Good
From $38,584
Compare at $45,168
Save 13.8%GIA | 2.55ct | Marquise | F | VVS1 | Excellent
From $40,275
Compare at $46,701
GIA | 2.55ct | Marquise | K | SI2 | Very Good
From $13,574
Compare at $14,010
Save 17.1%GIA | 2.6ct | Marquise | I | VS2 | Good
From $30,565
Compare at $36,879
Save 21.9%GIA | 2.6ct | Marquise | D | VVS1 | Excellent
From $59,776
Compare at $76,576
Entry pricing in this category starts around $1,335.
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 $70,270 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 $30,958 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 $1,335 and go up to $71,605.
Based on the latest market data, the average asking price is about $31,604 with a median around $30,958.
The observed spread is roughly $70,270 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 our data, the median price is $30,958, 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 $70,270 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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