1.3 Carat Marquise Lab Grown Diamond Prices Comparison
As of April 2026, 1.3 carat marquise lab grown diamonds usually range from $283 to $4,110, with an average price of $1,005.In the last month, prices for these diamonds are down 0.8%.Compare 871 verified listings across 9 retailers tracked by CaratRadar.
1.3 Carat Marquise Lab Grown Diamond Market Overview
CaratRadar currently tracks 871 verified 1.3-carat marquise lab grown diamonds listed across 9 online retailers. Prices in this segment range from $283 to $4,110, with an average asking price of $1,005 and a median of $866.
The price spread of $3,827 (93.1% 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.
871 diamonds tracked in this segment
Price range: $283 to $4,110
Average price: $1,005
Median price: $866
Available across 9 retailers
Savings potential: up to 93.1%
Price Range Overview
As of Apr 14, 2026Real market range for this carat, shape, and diamond type.
871
$283
$1,005
$866
$4,110
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 69.1%GIA | 1.31ct | Marquise | D | VVS2 | Excellent
From $1,792
Compare at $5,800
Save 38%IGI | 1.31ct | Marquise | F | VS2 | Ideal
From $2,562
Compare at $4,131
Save 38.5%IGI | 1.31ct | Marquise | H | VS1 | Ideal
From $2,318
Compare at $3,770
Save 57.4%IGI | 1.31ct | Marquise | E | SI1 | Ideal
From $639
Compare at $1,500
Save 71.8%IGI | 1.31ct | Marquise | H | VS1 | Ideal
From $485
Compare at $1,720
Save 30.8%IGI | 1.31ct | Marquise | D | VS1 | Ideal
From $1,078
Compare at $1,558
IGI | 1.31ct | Marquise | F | VVS2 | Very Good
From $743
Compare at $777
Save 71.2%IGI | 1.31ct | Marquise | F | VS1 | Ideal
From $729
Compare at $2,530
Save 71.2%IGI | 1.31ct | Marquise | F | VS1 | Ideal
From $729
Compare at $2,530
Save 67.2%IGI | 1.31ct | Marquise | D | VVS2 | Ideal
From $708
Compare at $2,160
Save 32.7%IGI | 1.31ct | Marquise | D | VS1 | Very Good
From $675
Compare at $1,003
Save 62.8%IGI | 1.31ct | Marquise | D | VVS2 | Ideal
From $810
Compare at $2,180
Save 54.8%IGI | 1.31ct | Marquise | F | VVS2 | Excellent
From $730
Compare at $1,617
Save 40.3%IGI | 1.31ct | Marquise | F | VS1 | Excellent
From $659
Compare at $1,104
IGI | 1.31ct | Marquise | D | VVS2 | Ideal
From $2,160
Compare at $2,260
Save 68.1%IGI | 1.31ct | Marquise | D | VVS2 | Excellent
From $708
Compare at $2,220
Save 71.3%IGI | 1.31ct | Marquise | D | VVS1 | Very Good
From $689
Compare at $2,400
Save 68.1%IGI | 1.31ct | Marquise | D | VVS2 | Excellent
From $708
Compare at $2,220
Save 25.4%IGI | 1.31ct | Marquise | E | VS1 | Very Good
From $540
Compare at $724
Save 65.6%IGI | 1.31ct | Marquise | E | VVS2 | Excellent
From $639
Compare at $1,860
Save 65.6%IGI | 1.31ct | Marquise | E | VVS2 | Excellent
From $639
Compare at $1,860
Save 74.4%IGI | 1.31ct | Marquise | E | VS1 | Ideal
From $744
Compare at $2,910
Save 68.1%IGI | 1.31ct | Marquise | D | VVS2 | Excellent
From $708
Compare at $2,220
Save 60.5%IGI | 1.31ct | Marquise | G | VVS2 | Excellent
From $486
Compare at $1,230
Save 58.9%IGI | 1.31ct | Marquise | F | VVS2 | Excellent
From $510
Compare at $1,240
Save 30.3%IGI | 1.31ct | Marquise | D | VS2 | Ideal
From $554
Compare at $795
Save 70.2%IGI | 1.31ct | Marquise | D | VS2 | Ideal
From $521
Compare at $1,750
Save 24.5%IGI | 1.31ct | Marquise | E | VVS2 | Very Good
From $571
Compare at $756
Save 55.3%IGI | 1.31ct | Marquise | F | VVS2 | Excellent
From $510
Compare at $1,140
Save 63.4%IGI | 1.31ct | Marquise | D | IF | Ideal
From $1,191
Compare at $3,250
Save 61.2%IGI | 1.31ct | Marquise | G | VVS2 | Very Good
From $404
Compare at $1,040
Save 36.3%IGI | 1.31ct | Marquise | E | VS1 | Ideal
From $532
Compare at $835
Save 70.5%IGI | 1.31ct | Marquise | E | VVS2 | Ideal
From $657
Compare at $2,230
Save 68.1%IGI | 1.31ct | Marquise | D | VVS2 | Excellent
From $708
Compare at $2,220
Save 33.1%IGI | 1.31ct | Marquise | E | VS1 | Excellent
From $532
Compare at $795
Save 57.6%IGI | 1.31ct | Marquise | E | VVS1 | Very Good
From $662
Compare at $1,560
Save 55.1%IGI | 1.31ct | Marquise | E | VS2 | Ideal
From $521
Compare at $1,160
Save 73.6%IGI | 1.31ct | Marquise | D | VS1 | Excellent
From $648
Compare at $2,450
Save 55.8%IGI | 1.31ct | Marquise | D | VS1 | Very Good
From $619
Compare at $1,400
Save 71.5%IGI | 1.31ct | Marquise | D | VS1 | Ideal
From $659
Compare at $2,310
Save 70.6%IGI | 1.31ct | Marquise | D | VS1 | Very Good
From $560
Compare at $1,900
IGI | 1.31ct | Marquise | D | VS2 | Very Good
From $524
Compare at $570
Save 73.6%IGI | 1.31ct | Marquise | E | VVS2 | Excellent
From $657
Compare at $2,490
Save 44.4%IGI | 1.31ct | Marquise | E | VS2 | Very Good
From $545
Compare at $980
Save 57%IGI | 1.31ct | Marquise | F | VS1 | Very Good
From $499
Compare at $1,160
Save 44.4%IGI | 1.31ct | Marquise | E | VS2 | Very Good
From $545
Compare at $980
Save 53.7%IGI | 1.31ct | Marquise | D | IF | Very Good
From $1,282
Compare at $2,769
Save 70.5%IGI | 1.31ct | Marquise | E | VVS2 | Very Good
From $657
Compare at $2,230
Save 39.1%IGI | 1.31ct | Marquise | F | VS1 | Very Good
From $551
Compare at $904
Save 55.5%IGI | 1.31ct | Marquise | F | VS1 | Excellent
From $499
Compare at $1,120
Entry pricing in this category starts around $283.
What to Know When Shopping for 1.3 Carat Marquise Lab Grown Diamonds
- Always compare identical certified diamonds across retailers. Identical certificate numbers can have price differences of $3,827 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 $866 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.
- Lab-grown diamonds offer excellent value. Ensure the stone comes with a GIA or IGI certificate confirming it is laboratory-grown.
- 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 871 comparable stones in this segment. Prices start around $283 and go up to $4,110.
Based on the latest market data, the average asking price is about $1,005 with a median around $866.
The observed spread is roughly $3,827 across tracked listings, which is about 93.1% 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 $866, 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 9 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 $3,827 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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