1.4 Carat Marquise Lab Grown Diamond Prices Comparison
As of April 2026, 1.4 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 1,363 verified listings across 9 retailers tracked by CaratRadar.
1.4 Carat Marquise Lab Grown Diamond Market Overview
CaratRadar currently tracks 1,363 verified 1.4-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.
1,363 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.
1,363
$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 77%GCAL | 1.4ct | Marquise | E | IF | Ideal
From $1,737
Compare at $7,560
Save 75.5%GIA | 1.4ct | Marquise | D | IF | Excellent
From $1,895
Compare at $7,740
Save 75.5%GIA | 1.4ct | Marquise | D | IF | Ideal
From $1,895
Compare at $7,740
Save 35%IGI | 1.4ct | Marquise | G | VS1 | Ideal
From $2,725
Compare at $4,190
Save 73.1%IGI | 1.4ct | Marquise | E | VVS2 | Very Good
From $1,007
Compare at $3,740
Save 50.7%IGI | 1.4ct | Marquise | F | VS2 | Excellent
From $542
Compare at $1,100
Save 68.2%IGI | 1.4ct | Marquise | D | VS1 | Good
From $645
Compare at $2,030
Save 20.2%IGI | 1.4ct | Marquise | D | VVS1 | Ideal
From $880
Compare at $1,102
Save 39.4%IGI | 1.4ct | Marquise | D | VS1 | Ideal
From $555
Compare at $915
Save 73.7%IGI | 1.4ct | Marquise | D | VS1 | Ideal
From $629
Compare at $2,390
Save 44.1%IGI | 1.4ct | Marquise | D | VS1 | Ideal
From $1,297
Compare at $2,320
Save 74.2%IGI | 1.4ct | Marquise | E | VS2 | Ideal
From $524
Compare at $2,030
Save 61.6%IGI | 1.4ct | Marquise | D | IF | Excellent
From $2,906
Compare at $7,577
Save 31.7%IGI | 1.4ct | Marquise | D | VVS2 | Ideal
From $747
Compare at $1,094
Save 69.3%IGI | 1.4ct | Marquise | D | VVS2 | Excellent
From $1,447
Compare at $4,720
Save 44.6%IGI | 1.4ct | Marquise | F | VS1 | Very Good
From $554
Compare at $1,000
Save 68.2%IGI | 1.4ct | Marquise | D | VVS2 | Excellent
From $761
Compare at $2,390
Save 27.8%IGI | 1.4ct | Marquise | F | VVS2 | Very Good
From $621
Compare at $860
Save 27.6%IGI | 1.4ct | Marquise | E | VS2 | Very Good
From $581
Compare at $802
Save 33%IGI | 1.4ct | Marquise | E | VVS1 | Excellent
From $650
Compare at $970
Save 68.2%IGI | 1.4ct | Marquise | D | VVS2 | Ideal
From $761
Compare at $2,390
Save 33.2%IGI | 1.4ct | Marquise | D | VVS2 | Excellent
From $632
Compare at $947
Save 44.7%IGI | 1.4ct | Marquise | E | VS1 | Very Good
From $548
Compare at $990
Save 78.3%IGI | 1.4ct | Marquise | D | IF | Excellent
From $883
Compare at $4,080
Save 77.2%IGI | 1.4ct | Marquise | D | IF | Very Good
From $930
Compare at $4,080
Save 55.7%IGI | 1.4ct | Marquise | D | VVS1 | Excellent
From $922
Compare at $2,080
Save 60.2%IGI | 1.4ct | Marquise | D | IF | Very Good
From $2,073
Compare at $5,209
Save 60.2%IGI | 1.4ct | Marquise | D | IF | Very Good
From $2,073
Compare at $5,209
Save 69.8%IGI | 1.4ct | Marquise | D | VVS1 | Ideal
From $727
Compare at $2,410
Save 33%IGI | 1.4ct | Marquise | E | VVS1 | Excellent
From $650
Compare at $970
Save 36.5%IGI | 1.4ct | Marquise | E | VS1 | Ideal
From $569
Compare at $895
Save 73.3%IGI | 1.4ct | Marquise | D | VVS2 | Ideal
From $761
Compare at $2,850
IGI | 1.4ct | Marquise | F | VVS1 | Excellent
From $652
Compare at $675
Save 25.4%IGI | 1.4ct | Marquise | G | VS1 | Very Good
From $537
Compare at $719
Save 71.5%IGI | 1.4ct | Marquise | D | VS1 | Ideal
From $656
Compare at $2,300
IGI | 1.4ct | Marquise | F | VS2 | Excellent
From $640
Compare at $670
Save 27.8%IGI | 1.4ct | Marquise | D | VVS2 | Very Good
From $621
Compare at $860
Save 71.4%IGI | 1.4ct | Marquise | F | VS2 | Ideal
From $569
Compare at $1,990
Save 12.7%IGI | 1.4ct | Marquise | D | VVS1 | Ideal
From $1,894
Compare at $2,170
Save 26.8%IGI | 1.4ct | Marquise | D | IF | Ideal
From $4,160
Compare at $5,683
Save 68.2%IGI | 1.4ct | Marquise | D | VVS2 | Ideal
From $761
Compare at $2,390
Save 32.4%IGI | 1.4ct | Marquise | E | VS1 | Excellent
From $574
Compare at $850
Save 53.7%IGI | 1.4ct | Marquise | D | IF | Ideal
From $1,289
Compare at $2,785
Save 55.5%IGI | 1.4ct | Marquise | F | VVS2 | Very Good
From $569
Compare at $1,280
Save 61.1%IGI | 1.4ct | Marquise | D | VVS2 | Excellent
From $650
Compare at $1,670
Save 68.6%IGI | 1.4ct | Marquise | E | VVS2 | Excellent
From $621
Compare at $1,980
Save 74.2%IGI | 1.4ct | Marquise | D | IF | Excellent
From $883
Compare at $3,430
Save 84.2%IGI | 1.4ct | Marquise | D | FL | Ideal
From $1,380
Compare at $8,720
Save 33.1%IGI | 1.4ct | Marquise | E | VS1 | Excellent
From $569
Compare at $850
Save 55.9%IGI | 1.4ct | Marquise | D | VS2 | Ideal
From $604
Compare at $1,370
Entry pricing in this category starts around $283.
What to Know When Shopping for 1.4 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 1,363 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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