1.2 Carat Marquise Natural Diamond Prices Comparison
As of April 2026, 1.2 carat marquise natural diamonds usually range from $800 to $12,543, with an average price of $5,116.In the last month, prices for these diamonds are up 0.4%.Compare 367 verified listings across 8 retailers tracked by CaratRadar.
1.2 Carat Marquise Natural Diamond Market Overview
CaratRadar currently tracks 367 verified 1.2-carat marquise natural diamonds listed across 8 online retailers. Prices in this segment range from $800 to $12,543, with an average asking price of $5,116 and a median of $4,453.
The price spread of $11,743 (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.
367 diamonds tracked in this segment
Price range: $800 to $12,543
Average price: $5,116
Median price: $4,453
Available across 8 retailers
Savings potential: up to 93.6%
Price Range Overview
As of Apr 15, 2026Real market range for this carat, shape, and diamond type.
367
$800
$5,116
$4,453
$12,543
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 $7,514
Save 28%GIA | 1.2ct | Marquise | E | SI1 | Excellent
From $6,124
Compare at $8,505
Save 28.5%GIA | 1.2ct | Marquise | D | SI2 | Excellent
From $5,631
Compare at $7,879
Save 36%GIA | 1.2ct | Marquise | F | VS2 | Good
From $6,711
Compare at $10,481
Save 35.4%GIA | 1.2ct | Marquise | D | SI2 | Ideal
From $4,863
Compare at $7,528
Save 34.8%GIA | 1.2ct | Marquise | J | SI2 | Excellent
From $3,428
Compare at $5,260
Save 36.4%GIA | 1.2ct | Marquise | D | VS1 | Ideal
From $9,658
Compare at $15,176
Save 27%GIA | 1.2ct | Marquise | F | SI1 | Very Good
From $5,930
Compare at $8,122
Save 22.3%GIA | 1.2ct | Marquise | G | VVS1 | Excellent
From $9,021
Compare at $11,616
Save 28%GIA | 1.2ct | Marquise | I | VVS2 | Excellent
From $6,161
Compare at $8,552
Save 28%GIA | 1.2ct | Marquise | E | SI1 | Excellent
From $6,423
Compare at $8,920
Save 34.2%GIA | 1.2ct | Marquise | J | SI2 | Good
From $2,996
Compare at $4,555
GIA | 1.2ct | Marquise | D | SI1 | Excellent
From $7,304
Compare at $7,430
Save 10.4%GIA | 1.2ct | Marquise | J | SI1 | Ideal
From $4,050
Compare at $4,520
Save 14.9%GIA | 1.2ct | Marquise | D | VS1 | Ideal
From $9,106
Compare at $10,705
Save 12.1%GIA | 1.2ct | Marquise | E | VS1 | Ideal
From $8,452
Compare at $9,611
Save 34.2%GIA | 1.2ct | Marquise | K | SI1 | Ideal
From $2,850
Compare at $4,333
Save 11.1%GIA | 1.2ct | Marquise | L | VS2 | Excellent
From $2,551
Compare at $2,870
Save 34.2%GIA | 1.2ct | Marquise | H | SI2 | Ideal
From $3,136
Compare at $4,767
GIA | 1.2ct | Marquise | F | VS2 | Excellent
From $8,790
Compare at $8,874
GIA | 1.2ct | Marquise | E | VS2 | Excellent
From $10,413
Compare at $10,498
GIA | 1.2ct | Marquise | F | IF | Excellent
From $11,018
Compare at $11,360
Save 23.1%GIA | 1.2ct | Marquise | D | VVS1 | Excellent
From $11,035
Compare at $14,346
Save 35.4%GIA | 1.2ct | Marquise | D | SI1 | Very Good
From $6,306
Compare at $9,759
GIA | 1.2ct | Marquise | H | SI1 | Excellent
From $7,517
Compare at $7,661
Save 22.7%GIA | 1.2ct | Marquise | D | VS1 | Excellent
From $7,859
Compare at $10,170
Save 27.1%GIA | 1.2ct | Marquise | F | SI2 | Very Good
From $5,479
Compare at $7,513
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 21.3%GIA | 1.2ct | Marquise | D | SI1 | Very Good
From $6,457
Compare at $8,209
Save 36%GIA | 1.2ct | Marquise | E | VS2 | Ideal
From $7,086
Compare at $11,066
Save 35.4%GIA | 1.2ct | Marquise | F | SI2 | Excellent
From $4,178
Compare at $6,465
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 $9,056
Save 35.4%GIA | 1.2ct | Marquise | E | SI1 | Ideal
From $5,883
Compare at $9,106
Save 26.6%GIA | 1.2ct | Marquise | K | VVS2 | Excellent
From $3,459
Compare at $4,715
Save 27.1%GIA | 1.2ct | Marquise | D | VVS1 | Excellent
From $10,427
Compare at $14,312
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 33.7%GIA | 1.2ct | Marquise | J | SI2 | Excellent
From $2,788
Compare at $4,202
Save 35.1%GIA | 1.2ct | Marquise | F | VS1 | Ideal
From $7,893
Compare at $12,156
Save 13.4%GIA | 1.2ct | Marquise | D | VVS2 | Excellent
From $10,670
Compare at $12,326
Save 25.4%GIA | 1.2ct | Marquise | I | SI2 | Excellent
From $3,926
Compare at $5,262
GIA | 1.2ct | Marquise | K | SI1 | Excellent
From $4,129
Compare at $4,229
Save 17.1%GIA | 1.2ct | Marquise | F | SI1 | Good
From $5,960
Compare at $7,194
Save 23.9%GIA | 1.2ct | Marquise | D | VS1 | Very Good
From $8,445
Compare at $11,095
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
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 $11,743 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 $4,453 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 367 comparable stones in this segment. Prices start around $800 and go up to $12,543.
Based on the latest market data, the average asking price is about $5,116 with a median around $4,453.
The observed spread is roughly $11,743 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 $4,453, 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 $11,743 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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