0.8 Carat Marquise Lab Grown Diamond Prices Comparison
As of May 2026, 0.8 carat marquise lab grown diamonds usually range from $159 to $2,250, with an average price of $602.In the last month, prices for these diamonds are down 5.4%.Compare 1,256 verified listings across 7 retailers tracked by CaratRadar.
0.8 Carat Marquise Lab Grown Diamond Market Overview
CaratRadar currently tracks 1,256 verified 0.8-carat marquise lab grown diamonds listed across 7 online retailers. Prices in this segment range from $159 to $2,250, with an average asking price of $602 and a median of $573.
The price spread of $2,091 (92.9% 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.
1,256 diamonds tracked in this segment
Price range: $159 to $2,250
Average price: $602
Median price: $573
Available across 7 retailers
Savings potential: up to 92.9%
Price Range Overview
As of May 30, 2026Real market range for this carat, shape, and diamond type.
1,256
$159
$602
$573
$2,250
Price History
Price Comparison Matrix
Live Listings
See all listingsCompare current retailer offers for this exact segment and open any listing for full details.
Save 78%IGI | 0.83ct | Marquise | F | VS1 | Good
From $167
Compare at $760
Save 78.9%IGI | 0.87ct | Marquise | F | VS1 | Very Good
From $169
Compare at $800
Save 78.3%IGI | 0.81ct | Marquise | E | VS1 | Very Good
From $169
Compare at $780
Save 78.4%IGI | 0.82ct | Marquise | E | VS1 | Very Good
From $171
Compare at $790
Save 76.6%IGI | 0.83ct | Marquise | E | VS2 | Good
From $173
Compare at $740
Save 78.4%IGI | 0.83ct | Marquise | E | VS1 | Excellent
From $173
Compare at $800
Save 78.4%IGI | 0.83ct | Marquise | E | VS1 | Excellent
From $173
Compare at $800
Save 68.9%IGI | 0.84ct | Marquise | E | VS2 | Very Good
From $174
Compare at $560
Save 78.5%IGI | 0.84ct | Marquise | E | VS1 | Excellent
From $174
Compare at $810
Save 78.5%IGI | 0.85ct | Marquise | E | VS1 | Good
From $176
Compare at $820
Save 77%IGI | 0.86ct | Marquise | E | VS2 | Very Good
From $177
Compare at $770
Save 78.4%IGI | 0.86ct | Marquise | E | VS1 | Excellent
From $179
Compare at $830
Save 78.4%IGI | 0.86ct | Marquise | E | VS1 | Excellent
From $179
Compare at $830
Save 77.9%IGI | 0.88ct | Marquise | F | VS1 | Very Good
From $179
Compare at $810
Save 76.8%IGI | 0.86ct | Marquise | E | VS2 | Good
From $179
Compare at $770
Save 77.9%IGI | 0.89ct | Marquise | F | VS1 | Very Good
From $181
Compare at $820
Save 77.9%IGI | 0.89ct | Marquise | F | VS1 | Very Good
From $181
Compare at $820
Save 73.1%IGI | 0.85ct | Marquise | E | SI1 | Ideal
From $183
Compare at $680
Save 77.7%IGI | 0.85ct | Marquise | E | VS1 | Very Good
From $183
Compare at $820
Save 53.3%IGI | 0.86ct | Marquise | F | VS1 | Good
From $185
Compare at $396
Save 78.5%IGI | 0.89ct | Marquise | E | VS1 | Excellent
From $185
Compare at $860
Save 78.5%IGI | 0.89ct | Marquise | E | VS1 | Very Good
From $185
Compare at $860
Save 78.5%IGI | 0.89ct | Marquise | E | VS1 | Very Good
From $185
Compare at $860
Save 78.2%IGI | 0.88ct | Marquise | E | VS1 | Very Good
From $185
Compare at $850
Save 75.4%IGI | 0.9ct | Marquise | E | SI2 | Ideal
From $187
Compare at $760
Save 78.3%IGI | 0.81ct | Marquise | D | VS1 | Very Good
From $187
Compare at $860
Save 77.2%IGI | 0.86ct | Marquise | E | VS1 | Excellent
From $189
Compare at $830
Save 78%IGI | 0.89ct | Marquise | E | VS1 | Excellent
From $189
Compare at $860
Save 77%IGI | 0.87ct | Marquise | E | VS1 | Good
From $191
Compare at $830
Save 78%IGI | 0.82ct | Marquise | D | VS1 | Good
From $191
Compare at $870
Save 77.8%IGI | 0.89ct | Marquise | E | VS1 | Very Good
From $191
Compare at $860
Save 77.8%IGI | 0.81ct | Marquise | D | VS1 | Good
From $191
Compare at $860
Save 68.1%IGI | 0.81ct | Marquise | E | VS1 | Very Good
From $192
Compare at $601
Save 67.5%IGI | 0.84ct | Marquise | F | VVS2 | Very Good
From $192
Compare at $590
Save 76.7%IGI | 0.82ct | Marquise | D | VS2 | Ideal
From $193
Compare at $830
Save 73.6%IGI | 0.86ct | Marquise | F | VS2 | Very Good
From $193
Compare at $730
Save 78%IGI | 0.83ct | Marquise | D | VS1 | Good
From $194
Compare at $880
Save 75.6%IGI | 0.9ct | Marquise | E | VVS2 | Excellent
From $195
Compare at $800
Save 75%IGI | 0.83ct | Marquise | F | VVS2 | Very Good
From $195
Compare at $780
Save 77.8%IGI | 0.83ct | Marquise | D | VS1 | Very Good
From $195
Compare at $880
Save 77.8%IGI | 0.83ct | Marquise | D | VS1 | Good
From $195
Compare at $880
Save 77.8%IGI | 0.83ct | Marquise | D | VS1 | Very Good
From $195
Compare at $880
Save 76.9%IGI | 0.84ct | Marquise | D | VS2 | Good
From $196
Compare at $850
Save 75.1%IGI | 0.86ct | Marquise | F | VS1 | Very Good
From $197
Compare at $790
Save 66.4%IGI | 0.86ct | Marquise | D | VS1 | Very Good
From $197
Compare at $586
Save 66.6%IGI | 0.9ct | Marquise | E | VVS2 | Very Good
From $197
Compare at $589
Save 78%IGI | 0.85ct | Marquise | D | VS1 | Ideal
From $198
Compare at $900
Save 78%IGI | 0.85ct | Marquise | D | VS1 | Ideal
From $198
Compare at $900
Save 64.6%IGI | 0.84ct | Marquise | E | VS2 | Very Good
From $198
Compare at $560
Save 68.1%IGI | 0.82ct | Marquise | D | VS1 | Excellent
From $200
Compare at $627
Entry pricing in this category starts around $159.
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 $2,091 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 $573 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 1,256 comparable stones in this segment. Prices start around $159 and go up to $2,250.
Based on the latest market data, the average asking price is about $602 with a median around $573.
The observed spread is roughly $2,091 across tracked listings, which is about 92.9% from highest to lowest offer in this bucket.
We refresh pricing data daily so these pages stay current with market changes.
Based on completed market data, the fair market benchmark is $602. The median price is $573, so offers between the median and fair benchmark can be reasonable, while reputable listings below the median may be especially competitive.
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 $2,091 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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