1.7 Carat Marquise Lab Grown Diamond Prices Comparison
As of May 2026, 1.7 carat marquise lab grown diamonds usually range from $251 to $7,530, with an average price of $1,312.In the last month, prices for these diamonds are down 6.3%.Compare 407 verified listings across 8 retailers tracked by CaratRadar.
1.7 Carat Marquise Lab Grown Diamond Market Overview
CaratRadar currently tracks 407 verified 1.7-carat marquise lab grown diamonds listed across 8 online retailers. Prices in this segment range from $251 to $7,530, with an average asking price of $1,312 and a median of $1,015.
The price spread of $7,279 (96.7% 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.
407 diamonds tracked in this segment
Price range: $251 to $7,530
Average price: $1,312
Median price: $1,015
Available across 8 retailers
Savings potential: up to 96.7%
Price Range Overview
As of May 29, 2026Real market range for this carat, shape, and diamond type.
407
$251
$1,312
$1,015
$7,530
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 75.9%IGI | 1.72ct | Marquise | F | VS1 | Very Good
From $314
Compare at $1,305
Save 75%IGI | 1.71ct | Marquise | F | VS1 | Ideal
From $324
Compare at $1,295
Save 73.7%IGI | 1.7ct | Marquise | F | VS1 | Excellent
From $326
Compare at $1,240
Save 73.7%IGI | 1.71ct | Marquise | F | VS1 | Very Good
From $328
Compare at $1,245
Save 73.7%IGI | 1.71ct | Marquise | F | VS1 | Excellent
From $328
Compare at $1,245
Save 73.7%IGI | 1.71ct | Marquise | F | VS1 | Excellent
From $328
Compare at $1,245
Save 76.6%IGI | 1.71ct | Marquise | F | VVS2 | Excellent
From $340
Compare at $1,450
Save 74.4%IGI | 1.75ct | Marquise | F | VS1 | Very Good
From $340
Compare at $1,330
Save 73.7%IGI | 1.79ct | Marquise | F | VS1 | Excellent
From $343
Compare at $1,305
Save 76.3%IGI | 1.71ct | Marquise | F | VVS2 | Excellent
From $344
Compare at $1,450
Save 78.4%IGI | 1.71ct | Marquise | F | VS1 | Excellent
From $369
Compare at $1,710
Save 59.2%IGI | 1.79ct | Marquise | E | VS2 | Ideal
From $370
Compare at $906
Save 58.4%IGI | 1.71ct | Marquise | E | VVS2 | Very Good
From $375
Compare at $901
Save 77.9%IGI | 1.76ct | Marquise | E | VVS2 | Ideal
From $376
Compare at $1,705
Save 77.8%IGI | 1.75ct | Marquise | G | VVS2 | Very Good
From $377
Compare at $1,700
Save 79.9%IGI | 1.76ct | Marquise | I | VS1 | Ideal
From $380
Compare at $1,890
Save 76.8%IGI | 1.76ct | Marquise | E | VVS2 | Excellent
From $380
Compare at $1,635
Save 76.8%IGI | 1.72ct | Marquise | E | VS2 | Very Good
From $387
Compare at $1,670
Save 45.6%IGI | 1.7ct | Marquise | G | VS1 | Very Good
From $394
Compare at $724
Save 74.1%IGI | 1.72ct | Marquise | D | VS1 | Ideal
From $406
Compare at $1,565
Save 61.6%IGI | 1.7ct | Marquise | F | VVS2 | Very Good
From $410
Compare at $1,069
Save 78.3%IGI | 1.74ct | Marquise | D | VS1 | Very Good
From $411
Compare at $1,890
Save 79.8%IGI | 1.8ct | Marquise | D | VS1 | Excellent
From $417
Compare at $2,060
Save 75.3%IGI | 1.7ct | Marquise | E | VS2 | Excellent
From $424
Compare at $1,720
Save 78.7%IGI | 1.73ct | Marquise | E | VVS2 | Very Good
From $433
Compare at $2,030
Save 61.7%IGI | 1.71ct | Marquise | E | VS1 | Excellent
From $440
Compare at $1,150
Save 66.3%IGI | 1.8ct | Marquise | F | VS1 | Excellent
From $441
Compare at $1,310
Save 71.9%IGI | 1.73ct | Marquise | FANCY | VS2 | Good
From $444
Compare at $1,581
Save 46.1%IGI | 1.73ct | Marquise | E | VS1 | Excellent
From $447
Compare at $829
Save 47.8%IGI | 1.7ct | Marquise | E | VS2 | Very Good
From $458
Compare at $878
Save 69.2%IGI | 1.76ct | Marquise | F | VVS2 | Very Good
From $461
Compare at $1,495
Save 61.7%IGI | 1.78ct | Marquise | E | VVS2 | Very Good
From $463
Compare at $1,208
Save 53.5%IGI | 1.72ct | Marquise | E | VS1 | Very Good
From $465
Compare at $1,001
Save 76.7%IGI | 1.74ct | Marquise | E | VS1 | Very Good
From $466
Compare at $2,000
Save 79.6%IGI | 1.78ct | Marquise | F | VS1 | Very Good
From $469
Compare at $2,300
Save 62.6%IGI | 1.74ct | Marquise | F | VVS2 | Very Good
From $470
Compare at $1,256
Save 77.7%IGI | 1.7ct | Marquise | F | VS1 | Ideal
From $471
Compare at $2,110
Save 53.3%IGI | 1.7ct | Marquise | I | VVS2 | Very Good
From $483
Compare at $1,035
Save 59.6%IGI | 1.75ct | Marquise | D | VS1 | Excellent
From $484
Compare at $1,199
Save 59.6%IGI | 1.78ct | Marquise | D | VS1 | Very Good
From $484
Compare at $1,198
Save 41.6%IGI | 1.7ct | Marquise | F | VS1 | Very Good
From $487
Compare at $834
Save 73.9%IGI | 1.76ct | Marquise | F | VVS2 | Very Good
From $488
Compare at $1,870
Save 76.4%IGI | 1.78ct | Marquise | F | VVS2 | Excellent
From $489
Compare at $2,070
Save 47.8%IGI | 1.71ct | Marquise | E | VVS2 | Very Good
From $496
Compare at $951
Save 71.2%IGI | 1.72ct | Marquise | E | VS2 | Ideal
From $496
Compare at $1,720
IGI | 1.75ct | Marquise | F | VS1 | Ideal
From $496
Compare at $958
Save 47.8%IGI | 1.72ct | Marquise | F | VS1 | Very Good
From $498
Compare at $954
Save 79.5%IGI | 1.7ct | Marquise | D | VS1 | Very Good
From $498
Compare at $2,430
Save 41.7%IGI | 1.7ct | Marquise | F | VVS2 | Very Good
From $500
Compare at $857
Save 76.4%IGI | 1.7ct | Marquise | E | VS1 | Very Good
From $500
Compare at $2,120
Entry pricing in this category starts around $251.
What to Know When Shopping for 1.7 Carat Marquise Lab Grown Diamonds
- Always compare identical certified diamonds across retailers. Identical certificate numbers can have price differences of $7,279 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 $1,015 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 407 comparable stones in this segment. Prices start around $251 and go up to $7,530.
Based on the latest market data, the average asking price is about $1,312 with a median around $1,015.
The observed spread is roughly $7,279 across tracked listings, which is about 96.7% 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 $1,312. The median price is $1,015, 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 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 $7,279 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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Tracking Lab Grown inventory for 1.7 carat Marquise diamonds.