1.7 Carat Marquise Lab Grown Diamond Prices Comparison
As of April 2026, 1.7 carat marquise lab grown diamonds usually range from $285 to $9,052, with an average price of $1,573.In the last month, prices for these diamonds are down 3%.Compare 348 verified listings across 8 retailers tracked by CaratRadar.
1.7 Carat Marquise Lab Grown Diamond Market Overview
CaratRadar currently tracks 348 verified 1.7-carat marquise lab grown diamonds listed across 8 online retailers. Prices in this segment range from $285 to $9,052, with an average asking price of $1,573 and a median of $1,288.
The price spread of $8,767 (96.9% 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.
348 diamonds tracked in this segment
Price range: $285 to $9,052
Average price: $1,573
Median price: $1,288
Available across 8 retailers
Savings potential: up to 96.9%
Price Range Overview
As of Apr 14, 2026Real market range for this carat, shape, and diamond type.
348
$285
$1,573
$1,288
$9,052
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 46%GIA | 1.7ct | Marquise | D | VVS2 | Excellent
From $4,144
Compare at $7,670
GIA | 1.7ct | Marquise | D | VVS2 | Excellent
From $3,080
Compare at $7,670
IGI | 1.7ct | Marquise | G | VS1 | Very Good
From $4,477
Compare at $4,480
IGI | 1.7ct | Marquise | G | VS1 | Ideal
From $4,477
Compare at $4,480
Save 32.9%IGI | 1.7ct | Marquise | G | VS1 | Very Good
From $627
Compare at $935
Save 57.6%IGI | 1.7ct | Marquise | D | VVS2 | Ideal
From $1,040
Compare at $2,450
Save 75.2%IGI | 1.7ct | Marquise | E | VVS2 | Ideal
From $755
Compare at $3,040
Save 33%IGI | 1.7ct | Marquise | E | VVS1 | Ideal
From $815
Compare at $1,215
Save 57.1%IGI | 1.7ct | Marquise | D | IF | Ideal
From $2,329
Compare at $5,430
Save 23.9%IGI | 1.7ct | Marquise | F | VVS2 | Very Good
From $640
Compare at $841
Save 20.2%IGI | 1.7ct | Marquise | E | VVS2 | Very Good
From $653
Compare at $818
Save 20.2%IGI | 1.7ct | Marquise | E | VVS2 | Very Good
From $653
Compare at $818
Save 78.5%IGI | 1.7ct | Marquise | E | VVS2 | Very Good
From $653
Compare at $3,040
Save 20.2%IGI | 1.7ct | Marquise | E | VVS2 | Very Good
From $653
Compare at $818
Save 71.5%IGI | 1.7ct | Marquise | D | IF | Excellent
From $2,626
Compare at $9,200
Save 64.3%IGI | 1.7ct | Marquise | D | VVS1 | Ideal
From $1,244
Compare at $3,485
Save 69.5%IGI | 1.7ct | Marquise | F | VVS2 | Ideal
From $653
Compare at $2,140
Save 72.2%IGI | 1.7ct | Marquise | E | VS1 | Very Good
From $652
Compare at $2,350
Save 66.7%IGI | 1.7ct | Marquise | F | VS1 | Ideal
From $672
Compare at $2,020
Save 20.2%IGI | 1.7ct | Marquise | E | VVS2 | Ideal
From $653
Compare at $818
Save 66.8%IGI | 1.7ct | Marquise | E | VS1 | Very Good
From $647
Compare at $1,950
Save 63.1%IGI | 1.7ct | Marquise | E | VS1 | Ideal
From $782
Compare at $2,120
Save 70.4%IGI | 1.7ct | Marquise | E | VS1 | Very Good
From $672
Compare at $2,270
Save 66.1%IGI | 1.7ct | Marquise | F | VS1 | Very Good
From $634
Compare at $1,870
Save 71%IGI | 1.7ct | Marquise | E | VS1 | Ideal
From $815
Compare at $2,810
IGI | 1.7ct | Marquise | F | VS1 | Excellent
From $643
Compare at $693
Save 73.3%IGI | 1.7ct | Marquise | E | VS1 | Very Good
From $875
Compare at $3,280
Save 78.4%IGI | 1.7ct | Marquise | D | VVS2 | Ideal
From $736
Compare at $3,400
Save 31.9%IGI | 1.7ct | Marquise | E | VVS1 | Very Good
From $1,288
Compare at $1,890
Save 77.2%IGI | 1.7ct | Marquise | E | VVS2 | Very Good
From $692
Compare at $3,040
Save 51.2%IGI | 1.7ct | Marquise | D | VS1 | Very Good
From $653
Compare at $1,337
Save 51.1%IGI | 1.7ct | Marquise | E | VS1 | Very Good
From $628
Compare at $1,283
Save 65.6%IGI | 1.7ct | Marquise | I | VVS2 | Very Good
From $525
Compare at $1,526
Save 52.9%IGI | 1.7ct | Marquise | D | VVS1 | Very Good
From $1,630
Compare at $3,460
Save 75.8%IGI | 1.7ct | Marquise | D | VVS2 | Excellent
From $744
Compare at $3,080
Save 72.5%IGI | 1.7ct | Marquise | F | VS2 | Ideal
From $629
Compare at $2,290
Save 72.7%GCAL | 1.71ct | Marquise | D | IF | Ideal
From $3,114
Compare at $11,420
IGI | 1.71ct | Marquise | J | VS1 | Ideal
From $3,822
Compare at $3,825
IGI | 1.71ct | Marquise | K | VS1 | Ideal
From $4,265
Save 40.2%IGI | 1.71ct | Marquise | H | VVS2 | Excellent
From $910
Compare at $1,522
Save 74.5%IGI | 1.71ct | Marquise | E | SI1 | Ideal
From $604
Compare at $2,370
Save 73.2%IGI | 1.71ct | Marquise | E | VS1 | Very Good
From $956
Compare at $3,570
Save 62.8%IGI | 1.71ct | Marquise | E | VS1 | Ideal
From $1,009
Compare at $2,710
Save 51.7%IGI | 1.71ct | Marquise | E | VS1 | Excellent
From $819
Compare at $1,698
Save 56%IGI | 1.71ct | Marquise | E | VS1 | Ideal
From $667
Compare at $1,514
Save 31.1%IGI | 1.71ct | Marquise | E | VVS2 | Excellent
From $1,010
Compare at $1,465
Save 71.2%IGI | 1.71ct | Marquise | E | VVS2 | Excellent
From $885
Compare at $3,070
Save 71.4%IGI | 1.71ct | Marquise | E | FL | Ideal
From $2,777
Compare at $9,700
Save 58.1%IGI | 1.71ct | Marquise | E | VS1 | Excellent
From $826
Compare at $1,970
Save 65%IGI | 1.71ct | Marquise | E | VVS1 | Ideal
From $900
Compare at $2,570
Entry pricing in this category starts around $285.
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 $8,767 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 $1,288 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 348 comparable stones in this segment. Prices start around $285 and go up to $9,052.
Based on the latest market data, the average asking price is about $1,573 with a median around $1,288.
The observed spread is roughly $8,767 across tracked listings, which is about 96.9% 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 $1,288, 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 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 $8,767 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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