1.2 Carat Marquise Natural Diamond Prices Comparison
As of April 2026, 1.2 carat marquise natural diamonds usually range from $800 to $12,540, with an average price of $5,119.In the last month, prices for these diamonds are up 0.4%.Compare 376 verified listings across 8 retailers tracked by CaratRadar.
1.2 Carat Marquise Natural Diamond Market Overview
CaratRadar currently tracks 376 verified 1.2-carat marquise natural diamonds listed across 8 online retailers. Prices in this segment range from $800 to $12,540, with an average asking price of $5,119 and a median of $4,454.
The price spread of $11,740 (93.6% 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.
376 diamonds tracked in this segment
Price range: $800 to $12,540
Average price: $5,119
Median price: $4,454
Available across 8 retailers
Savings potential: up to 93.6%
Price Range Overview
As of Apr 17, 2026Real market range for this carat, shape, and diamond type.
376
$800
$5,119
$4,454
$12,540
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 22.4%GIA | 1.2ct | Marquise | D | SI2 | Good
From $5,834
Compare at $7,515
Save 28%GIA | 1.2ct | Marquise | E | SI1 | Excellent
From $6,124
Compare at $8,505
Save 34.7%GIA | 1.2ct | Marquise | F | VS2 | Good
From $6,711
Compare at $10,271
Save 35.4%GIA | 1.2ct | Marquise | D | SI2 | Ideal
From $4,863
Compare at $7,528
Save 33.5%GIA | 1.2ct | Marquise | J | SI2 | Excellent
From $3,428
Compare at $5,154
Save 36.2%GIA | 1.2ct | Marquise | D | VS1 | Ideal
From $9,658
Compare at $15,134
Save 27%GIA | 1.2ct | Marquise | F | SI1 | Very Good
From $5,930
Compare at $8,122
GIA | 1.2ct | Marquise | I | SI2 | Ideal
From $4,580
Compare at $4,787
GIA | 1.2ct | Marquise | E | SI2 | Ideal
From $5,810
Compare at $6,055
Save 22.3%GIA | 1.2ct | Marquise | G | VVS1 | Excellent
From $9,021
Compare at $11,616
Save 22.4%GIA | 1.2ct | Marquise | I | VVS2 | Excellent
From $6,161
Compare at $7,936
Save 28%GIA | 1.2ct | Marquise | E | SI1 | Excellent
From $6,423
Compare at $8,920
Save 32.9%GIA | 1.2ct | Marquise | J | SI2 | Good
From $2,996
Compare at $4,464
GIA | 1.2ct | Marquise | D | SI1 | Excellent
From $7,304
Compare at $7,430
Save 11.7%GIA | 1.2ct | Marquise | J | SI1 | Ideal
From $4,050
Compare at $4,588
Save 26.8%GIA | 1.2ct | Marquise | I | SI1 | Very Good
From $4,854
Compare at $6,629
Save 14.9%GIA | 1.2ct | Marquise | D | VS1 | Ideal
From $9,106
Compare at $10,706
Save 12.1%GIA | 1.2ct | Marquise | E | VS1 | Ideal
From $8,452
Compare at $9,611
Save 32.9%GIA | 1.2ct | Marquise | K | SI1 | Ideal
From $2,850
Compare at $4,245
Save 11.1%GIA | 1.2ct | Marquise | L | VS2 | Excellent
From $2,551
Compare at $2,870
Save 32.9%GIA | 1.2ct | Marquise | H | SI2 | Ideal
From $3,136
Compare at $4,674
GIA | 1.2ct | Marquise | F | VS2 | Excellent
From $8,790
Compare at $8,875
GIA | 1.2ct | Marquise | E | VS2 | Excellent
From $10,413
Compare at $10,498
GIA | 1.2ct | Marquise | F | IF | Excellent
From $11,019
Compare at $11,360
Save 35.4%GIA | 1.2ct | Marquise | D | SI1 | Very Good
From $6,306
Compare at $9,759
GIA | 1.2ct | Marquise | I | SI1 | Ideal
From $4,320
Compare at $4,476
Save 22.7%GIA | 1.2ct | Marquise | D | VS1 | Excellent
From $7,859
Compare at $10,171
Save 35.4%GIA | 1.2ct | Marquise | F | VS2 | Ideal
From $6,544
Compare at $10,128
Save 35.4%GIA | 1.2ct | Marquise | D | SI1 | Very Good
From $5,730
Compare at $8,867
Save 21.6%GIA | 1.2ct | Marquise | F | VVS2 | Ideal
From $9,306
Compare at $11,864
Save 20%GIA | 1.2ct | Marquise | D | SI1 | Very Good
From $6,457
Compare at $8,075
Save 34.6%GIA | 1.2ct | Marquise | E | VS2 | Ideal
From $7,086
Compare at $10,843
Save 34.4%GIA | 1.2ct | Marquise | F | SI2 | Excellent
From $4,178
Compare at $6,367
GIA | 1.2ct | Marquise | D | VS2 | Excellent
From $8,455
Compare at $9,228
Save 36%GIA | 1.2ct | Marquise | F | VS2 | Excellent
From $7,337
Compare at $11,457
GIA | 1.2ct | Marquise | E | VS1 | Very Good
From $8,310
Compare at $9,057
Save 29.8%GIA | 1.2ct | Marquise | D | VS1 | Excellent
From $9,390
Compare at $13,379
Save 34.1%GIA | 1.2ct | Marquise | E | SI1 | Ideal
From $5,883
Compare at $8,925
Save 26.6%GIA | 1.2ct | Marquise | K | VVS2 | Excellent
From $3,459
Compare at $4,715
Save 21.7%GIA | 1.2ct | Marquise | D | VVS1 | Excellent
From $10,427
Compare at $13,311
Save 27.7%GIA | 1.2ct | Marquise | F | VS2 | Ideal
From $6,986
Compare at $9,661
Save 36%GIA | 1.2ct | Marquise | F | VS1 | Ideal
From $7,703
Compare at $12,029
Save 32.3%GIA | 1.2ct | Marquise | J | SI2 | Excellent
From $2,788
Compare at $4,118
Save 34.9%GIA | 1.2ct | Marquise | F | VS1 | Ideal
From $7,893
Compare at $12,126
GIA | 1.2ct | Marquise | D | VVS2 | Excellent
From $10,670
Compare at $11,030
Save 25.4%GIA | 1.2ct | Marquise | I | SI2 | Excellent
From $3,926
Compare at $5,262
Save 21.8%GIA | 1.2ct | Marquise | D | VS1 | Very Good
From $8,445
Compare at $10,795
Save 23%GIA | 1.2ct | Marquise | D | VVS2 | Excellent
From $9,370
Compare at $12,175
Save 34.8%GIA | 1.2ct | Marquise | J | SI1 | Ideal
From $3,684
Compare at $5,651
GIA | 1.2ct | Marquise | D | VS1 | Ideal
From $9,748
Compare at $10,019
Entry pricing in this category starts around $800.
What to Know When Shopping for 1.2 Carat Marquise Natural Diamonds
- Always compare identical certified diamonds across retailers. Identical certificate numbers can have price differences of $11,740 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 $4,454 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 376 comparable stones in this segment. Prices start around $800 and go up to $12,540.
Based on the latest market data, the average asking price is about $5,119 with a median around $4,454.
The observed spread is roughly $11,740 across tracked listings, which is about 93.6% 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 $4,454, 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 8 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 $11,740 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 1.2 carat Marquise diamonds.