1.7 Carat Cushion Lab Grown Diamond Prices Comparison
As of May 2026, 1.7 carat cushion lab grown diamonds usually range from $241 to $5,104, with an average price of $1,231.In the last month, prices for these diamonds are down 3.8%.Compare 774 verified listings across 8 retailers tracked by CaratRadar.
1.7 Carat Cushion Lab Grown Diamond Market Overview
CaratRadar currently tracks 774 verified 1.7-carat cushion lab grown diamonds listed across 8 online retailers. Prices in this segment range from $241 to $5,104, with an average asking price of $1,231 and a median of $966.
The price spread of $4,863 (95.3% 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.
774 diamonds tracked in this segment
Price range: $241 to $5,104
Average price: $1,231
Median price: $966
Available across 8 retailers
Savings potential: up to 95.3%
Price Range Overview
As of May 30, 2026Real market range for this carat, shape, and diamond type.
774
$241
$1,231
$966
$5,104
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 66.7%IGI | 1.77ct | Cushion | G | VS2 | Very Good
From $253
Compare at $760
Save 64.4%IGI | 1.71ct | Cushion | H | VVS2 | Ideal
From $272
Compare at $765
Save 64.1%IGI | 1.78ct | Cushion | G | VS1 | Very Good
From $276
Compare at $768
Save 74.4%IGI | 1.71ct | Cushion | D | SI1 | Ideal
From $277
Compare at $1,083
Save 44.1%IGI | 1.78ct | Cushion | E | VS1 | Very Good
From $279
Compare at $499
Save 65.8%IGI | 1.8ct | Cushion | F | VS2 | Ideal
From $291
Compare at $850
Save 70.9%IGI | 1.78ct | Cushion | E | VS2 | Good
From $296
Compare at $1,018
Save 66.7%IGI | 1.79ct | Cushion | F | VS1 | Very Good
From $298
Compare at $896
Save 66.6%IGI | 1.8ct | Cushion | E | VS1 | Very Good
From $300
Compare at $899
Save 61.5%IGI | 1.7ct | Cushion | E | VS2 | Ideal
From $302
Compare at $784
Save 65.4%IGI | 1.77ct | Cushion | E | VS1 | Very Good
From $302
Compare at $873
Save 67.4%IGI | 1.8ct | Cushion | F | VVS2 | Very Good
From $304
Compare at $932
Save 66.2%IGI | 1.8ct | Cushion | E | VS1 | Very Good
From $304
Compare at $900
Save 67.4%IGI | 1.8ct | Cushion | F | VVS2 | Very Good
From $304
Compare at $932
Save 65.7%IGI | 1.79ct | Cushion | E | VS1 | Very Good
From $306
Compare at $891
Save 77.3%IGI | 1.71ct | Cushion | G | SI1 | Ideal
From $307
Compare at $1,350
Save 66.2%IGI | 1.74ct | Cushion | E | VVS2 | Very Good
From $309
Compare at $914
Save 52.2%IGI | 1.7ct | Cushion | D | VS1 | Very Good
From $311
Compare at $651
Save 65.4%IGI | 1.78ct | Cushion | D | VS1 | Very Good
From $312
Compare at $902
Save 66.6%IGI | 1.77ct | Cushion | E | VVS2 | Very Good
From $315
Compare at $944
Save 66.9%IGI | 1.79ct | Cushion | E | VVS2 | Very Good
From $319
Compare at $964
Save 67.1%IGI | 1.8ct | Cushion | E | VVS2 | Very Good
From $320
Compare at $974
Save 65.5%IGI | 1.75ct | Cushion | E | VVS2 | Very Good
From $321
Compare at $931
Save 66.5%IGI | 1.79ct | Cushion | E | VVS2 | Very Good
From $323
Compare at $964
Save 78.5%IGI | 1.78ct | Cushion | H | VS1 | Ideal
From $325
Compare at $1,510
Save 79.1%IGI | 1.78ct | Cushion | E | SI2 | Ideal
From $326
Compare at $1,560
Save 73.5%IGI | 1.73ct | Cushion | I | VVS2 | Ideal
From $331
Compare at $1,250
Save 79.8%IGI | 1.71ct | Cushion | F | VS2 | Very Good
From $331
Compare at $1,640
Save 78.7%IGI | 1.71ct | Cushion | E | VS2 | Ideal
From $336
Compare at $1,580
Save 71.3%IGI | 1.8ct | Cushion | D | VS2 | Very Good
From $337
Compare at $1,174
Save 79.1%IGI | 1.7ct | Cushion | F | VS1 | Ideal
From $337
Compare at $1,610
Save 58.9%IGI | 1.7ct | Cushion | F | VS1 | Ideal
From $338
Compare at $823
Save 70.5%IGI | 1.73ct | Cushion | D | VS1 | Excellent
From $340
Compare at $1,153
Save 53.7%IGI | 1.7ct | Cushion | D | VVS2 | Very Good
From $340
Compare at $734
Save 64.8%IGI | 1.73ct | Cushion | D | VVS2 | Very Good
From $340
Compare at $965
Save 59.7%IGI | 1.74ct | Cushion | E | VS1 | Ideal
From $343
Compare at $851
Save 54.2%IGI | 1.73ct | Cushion | D | VVS2 | Very Good
From $347
Compare at $758
Save 54.2%IGI | 1.73ct | Cushion | D | VVS2 | Very Good
From $347
Compare at $758
Save 54.5%IGI | 1.74ct | Cushion | D | VVS2 | Very Good
From $349
Compare at $767
Save 57.4%IGI | 1.7ct | Cushion | E | VS1 | Ideal
From $351
Compare at $823
Save 57.4%IGI | 1.7ct | Cushion | E | VS1 | Very Good
From $351
Compare at $823
Save 57.4%IGI | 1.7ct | Cushion | E | VS1 | Very Good
From $351
Compare at $823
Save 47.1%IGI | 1.78ct | Cushion | G | VVS2 | Ideal
From $353
Compare at $667
Save 54.9%IGI | 1.76ct | Cushion | D | VVS2 | Very Good
From $353
Compare at $783
Save 57.5%IGI | 1.71ct | Cushion | E | VS1 | Ideal
From $354
Compare at $832
Save 57.5%IGI | 1.71ct | Cushion | E | VS1 | Ideal
From $354
Compare at $832
Save 57.5%IGI | 1.71ct | Cushion | E | VS1 | Ideal
From $354
Compare at $832
Save 57.5%IGI | 1.71ct | Cushion | E | VS1 | Ideal
From $354
Compare at $832
Save 57.5%IGI | 1.71ct | Cushion | E | VS1 | Ideal
From $354
Compare at $832
Save 72.3%IGI | 1.79ct | Cushion | H | SI1 | Ideal
From $354
Compare at $1,280
Entry pricing in this category starts around $241.
What to Know When Shopping for 1.7 Carat Cushion Lab Grown Diamonds
- Always compare identical certified diamonds across retailers. Identical certificate numbers can have price differences of $4,863 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 $966 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.
- Cushion cuts come in standard and modified brilliant varieties. Modified brilliants tend to show more fire, while standard cushions have broader facets.
Frequently Asked Questions
We currently track 774 comparable stones in this segment. Prices start around $241 and go up to $5,104.
Based on the latest market data, the average asking price is about $1,231 with a median around $966.
The observed spread is roughly $4,863 across tracked listings, which is about 95.3% 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 $1,231. The median price is $966, 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 $4,863 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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