0.8 Carat Marquise Lab Grown Diamond Prices Comparison
As of February 2026, 0.8 carat marquise lab grown diamonds usually range from $252 to $1,250, with an average price of $401.In the last month, prices for these diamonds are down 0.2%.Compare 1,484 verified listings across 7 retailers tracked by CaratRadar.
0.8 Carat Marquise Lab Grown Diamond Market Overview
CaratRadar currently tracks 1,484 verified 0.8-carat marquise lab grown diamonds listed across 7 online retailers. Prices in this segment range from $252 to $1,250, with an average asking price of $401 and a median of $391.
The price spread of $998 (79.8% 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.
1,484 diamonds tracked in this segment
Price range: $252 to $1,250
Average price: $401
Median price: $391
Available across 7 retailers
Savings potential: up to 79.8%
Price Range Overview
As of Feb 28, 2026Real market range for this carat, shape, and diamond type.
1,484
$252
$401
$391
$1,250
Price History
Price Comparison Matrix
Live Listings
See all listingsCompare current retailer offers for this exact segment and open any listing for full details.
IGISave 53.8%0.75ct | Marquise | D | VVS1 | Very Good
From $420
Compare at $910
IGISave 50.6%0.75ct | Marquise | D | VS1 | Ideal
From $390
Compare at $790
IGISave 52.8%0.75ct | Marquise | E | VVS2 | Very Good
From $359
Compare at $760
IGISave 87.8%0.75ct | Marquise | G | VS1 | Ideal
From $310
Compare at $2,539
IGISave 47.3%0.75ct | Marquise | D | VS1 | Excellent
From $390
Compare at $740
IGISave 59%0.75ct | Marquise | D | VS1 | Very Good
From $319
Compare at $780
IGISave 58.7%0.75ct | Marquise | D | VS1 | Excellent
From $359
Compare at $870
IGISave 59.7%0.75ct | Marquise | D | VS1 | Excellent
From $359
Compare at $890
IGISave 33.4%0.75ct | Marquise | D | VS2 | Good
From $386
Compare at $580
IGISave 56.8%0.75ct | Marquise | D | VVS2 | Excellent
From $372
Compare at $860
IGISave 56.3%0.75ct | Marquise | D | VVS2 | Excellent
From $372
Compare at $850
IGISave 55.7%0.75ct | Marquise | D | VS1 | Excellent
From $359
Compare at $810
IGISave 60%0.75ct | Marquise | D | VVS2 | Ideal
From $382
Compare at $955
IGISave 56.8%0.75ct | Marquise | D | VVS2 | Excellent
From $372
Compare at $860
IGISave 57.8%0.75ct | Marquise | D | VVS2 | Excellent
From $372
Compare at $880
IGISave 55.7%0.75ct | Marquise | D | VS1 | Excellent
From $359
Compare at $810
IGISave 57.8%0.75ct | Marquise | D | VVS2 | Excellent
From $372
Compare at $880
IGISave 57.3%0.75ct | Marquise | D | VS1 | Excellent
From $359
Compare at $840
IGISave 38.8%0.75ct | Marquise | D | VVS2 | Very Good
From $508
Compare at $830
IGISave 55.7%0.75ct | Marquise | D | VVS2 | Excellent
From $372
Compare at $840
IGISave 56.8%0.75ct | Marquise | D | VVS2 | Excellent
From $372
Compare at $860
IGISave 56.8%0.75ct | Marquise | D | VVS2 | Excellent
From $372
Compare at $860
IGISave 48.7%0.75ct | Marquise | D | VVS1 | Excellent
From $420
Compare at $820
IGISave 55.9%0.75ct | Marquise | F | VS1 | Very Good
From $315
Compare at $715
IGISave 56.3%0.75ct | Marquise | D | VVS2 | Excellent
From $372
Compare at $850
IGISave 62.9%0.75ct | Marquise | E | VVS2 | Very Good
From $295
Compare at $795
IGISave 62.8%0.75ct | Marquise | D | VVS2 | Ideal
From $316
Compare at $850
IGISave 55.7%0.75ct | Marquise | E | VVS1 | Ideal
From $372
Compare at $840
IGISave 42%0.75ct | Marquise | E | VS1 | Excellent
From $383
Compare at $660
IGISave 55.7%0.75ct | Marquise | D | VVS2 | Ideal
From $372
Compare at $840
IGISave 48.5%0.75ct | Marquise | D | VS2 | Very Good
From $386
Compare at $750
IGISave 55.2%0.75ct | Marquise | E | VVS1 | Ideal
From $372
Compare at $830
IGISave 49.1%0.75ct | Marquise | D | VS2 | Excellent
From $336
Compare at $660
IGISave 44%0.75ct | Marquise | E | VS2 | Excellent
From $375
Compare at $670
IGISave 50.6%0.75ct | Marquise | D | VS1 | Excellent
From $390
Compare at $790
IGISave 52.8%0.75ct | Marquise | E | VVS2 | Excellent
From $359
Compare at $760
IGISave 49.2%0.75ct | Marquise | D | VS2 | Excellent
From $386
Compare at $760
IGISave 61.8%0.75ct | Marquise | FANCY | VVS2 | Very Good
From $784
Compare at $2,050
IGISave 50.6%0.75ct | Marquise | D | VS1 | Excellent
From $390
Compare at $790
IGISave 63.8%0.75ct | Marquise | D | VS1 | Ideal
From $378
Compare at $1,043
IGISave 47.6%0.75ct | Marquise | E | VVS2 | Ideal
From $310
Compare at $592
IGISave 57.8%0.75ct | Marquise | D | VVS2 | Excellent
From $372
Compare at $880
IGISave 61.9%0.75ct | Marquise | D | VVS1 | Very Good
From $347
Compare at $910
IGISave 57.3%0.75ct | Marquise | D | VS1 | Excellent
From $359
Compare at $840
IGISave 50.6%0.75ct | Marquise | D | VS1 | Excellent
From $390
Compare at $790
IGISave 56.8%0.75ct | Marquise | D | VVS2 | Excellent
From $372
Compare at $860
IGISave 57.8%0.75ct | Marquise | D | VVS2 | Excellent
From $372
Compare at $880
IGISave 52.8%0.75ct | Marquise | E | VVS2 | Excellent
From $359
Compare at $760
IGISave 56.8%0.75ct | Marquise | D | VVS2 | Excellent
From $372
Compare at $860
IGISave 53.6%0.75ct | Marquise | E | VS1 | Excellent
From $344
Compare at $740
Entry pricing in this category starts around $252.
What to Know When Shopping for 0.8 Carat Marquise Lab Grown Diamonds
- Always compare identical certified diamonds across retailers. Identical certificate numbers can have price differences of $998 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 $391 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 1,484 comparable stones in this segment. Prices start around $252 and go up to $1,250.
Based on the latest market data, the average asking price is about $401 with a median around $391.
The observed spread is roughly $998 across tracked listings, which is about 79.8% 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 $391, 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 7 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 $998 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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