1.3 Carat Cushion Lab Grown Diamond Prices Comparison
As of May 2026, 1.3 carat cushion lab grown diamonds usually range from $215 to $4,250, with an average price of $942.In the last month, prices for these diamonds are down 2.9%.Compare 594 verified listings across 8 retailers tracked by CaratRadar.
1.3 Carat Cushion Lab Grown Diamond Market Overview
CaratRadar currently tracks 594 verified 1.3-carat cushion lab grown diamonds listed across 8 online retailers. Prices in this segment range from $215 to $4,250, with an average asking price of $942 and a median of $762.
The price spread of $4,035 (94.9% 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.
594 diamonds tracked in this segment
Price range: $215 to $4,250
Average price: $942
Median price: $762
Available across 8 retailers
Savings potential: up to 94.9%
Price Range Overview
As of May 29, 2026Real market range for this carat, shape, and diamond type.
594
$215
$942
$762
$4,250
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 77.6%IGI | 1.33ct | Cushion | E | VS2 | Ideal
From $215
Compare at $960
Save 44.1%IGI | 1.37ct | Cushion | F | VS1 | Very Good
From $218
Compare at $390
Save 69.7%IGI | 1.39ct | Cushion | F | VS2 | Very Good
From $222
Compare at $732
Save 67.5%IGI | 1.36ct | Cushion | F | VS1 | Very Good
From $226
Compare at $696
Save 67.5%IGI | 1.35ct | Cushion | E | VS1 | Very Good
From $227
Compare at $698
Save 67.7%IGI | 1.37ct | Cushion | F | VS1 | Very Good
From $228
Compare at $705
Save 69.1%IGI | 1.34ct | Cushion | F | VVS2 | Very Good
From $229
Compare at $740
Save 66.8%IGI | 1.34ct | Cushion | E | VS1 | Very Good
From $229
Compare at $689
Save 66.8%IGI | 1.34ct | Cushion | E | VS1 | Very Good
From $229
Compare at $689
Save 67.8%IGI | 1.38ct | Cushion | F | VS1 | Very Good
From $230
Compare at $714
Save 68%IGI | 1.38ct | Cushion | E | VS2 | Very Good
From $230
Compare at $718
Save 57.4%IGI | 1.34ct | Cushion | E | VS1 | Very Good
From $231
Compare at $542
Save 68.1%IGI | 1.39ct | Cushion | F | VS1 | Very Good
From $231
Compare at $724
Save 67.5%IGI | 1.37ct | Cushion | E | VS2 | Very Good
From $231
Compare at $710
Save 66.9%IGI | 1.35ct | Cushion | E | VS1 | Very Good
From $231
Compare at $698
Save 66.9%IGI | 1.35ct | Cushion | E | VS1 | Very Good
From $231
Compare at $698
IGI | 1.35ct | Cushion | E | VS1 | Very Good
From $231
Compare at $698
IGI | 1.35ct | Cushion | E | VS1 | Very Good
From $231
Compare at $698
IGI | 1.35ct | Cushion | E | VS1 | Very Good
From $231
Compare at $698
Save 69.5%IGI | 1.36ct | Cushion | F | VVS2 | Very Good
From $232
Compare at $760
Save 67.6%IGI | 1.38ct | Cushion | F | VS1 | Very Good
From $232
Compare at $715
Save 68.6%IGI | 1.34ct | Cushion | F | VVS2 | Very Good
From $232
Compare at $740
Save 74.8%IGI | 1.31ct | Cushion | E | SI1 | Ideal
From $234
Compare at $930
Save 67.4%IGI | 1.37ct | Cushion | E | VS1 | Very Good
From $234
Compare at $717
Save 67.4%IGI | 1.37ct | Cushion | E | VS1 | Very Good
From $234
Compare at $718
Save 67.4%IGI | 1.37ct | Cushion | E | VS1 | Very Good
From $234
Compare at $718
Save 65.9%IGI | 1.34ct | Cushion | F | VS2 | Very Good
From $235
Compare at $689
Save 67.6%IGI | 1.38ct | Cushion | E | VS1 | Very Good
From $236
Compare at $728
Save 67.6%IGI | 1.38ct | Cushion | E | VS1 | Very Good
From $236
Compare at $728
Save 70%IGI | 1.39ct | Cushion | F | VVS2 | Very Good
From $237
Compare at $791
Save 67.9%IGI | 1.39ct | Cushion | E | VS1 | Very Good
From $237
Compare at $738
Save 75.4%IGI | 1.36ct | Cushion | F | VS1 | Ideal
From $239
Compare at $970
Save 79.7%IGI | 1.38ct | Cushion | E | VS1 | Ideal
From $239
Compare at $1,180
Save 69.1%IGI | 1.37ct | Cushion | E | VVS2 | Very Good
From $241
Compare at $779
Save 66.8%IGI | 1.34ct | Cushion | D | VS1 | Very Good
From $241
Compare at $726
Save 69.4%IGI | 1.38ct | Cushion | E | VVS2 | Very Good
From $242
Compare at $790
Save 69.4%IGI | 1.38ct | Cushion | E | VVS2 | Very Good
From $242
Compare at $790
Save 69.4%IGI | 1.38ct | Cushion | E | VVS2 | Very Good
From $242
Compare at $790
Save 69.5%IGI | 1.39ct | Cushion | E | VVS2 | Very Good
From $244
Compare at $801
Save 66.4%IGI | 1.34ct | Cushion | D | VS1 | Very Good
From $244
Compare at $726
Save 66.8%IGI | 1.36ct | Cushion | D | VS2 | Very Good
From $245
Compare at $737
Save 69.2%IGI | 1.39ct | Cushion | E | VVS2 | Very Good
From $247
Compare at $802
Save 67.3%IGI | 1.37ct | Cushion | D | VS1 | Very Good
From $247
Compare at $756
Save 78.5%IGI | 1.33ct | Cushion | F | VS1 | Very Good
From $249
Compare at $1,160
Save 67.3%IGI | 1.39ct | Cushion | D | VS2 | Very Good
From $251
Compare at $767
Save 76.6%IGI | 1.35ct | Cushion | E | VS2 | Ideal
From $253
Compare at $1,080
Save 77.6%IGI | 1.35ct | Cushion | E | VS2 | Very Good
From $253
Compare at $1,130
Save 67.4%IGI | 1.39ct | Cushion | D | VS1 | Very Good
From $253
Compare at $777
Save 77.3%IGI | 1.35ct | Cushion | D | VS2 | Ideal
From $254
Compare at $1,120
Save 67.3%IGI | 1.34ct | Cushion | E | VVS2 | Good
From $256
Compare at $782
Entry pricing in this category starts around $215.
What to Know When Shopping for 1.3 Carat Cushion Lab Grown Diamonds
- Always compare identical certified diamonds across retailers. Identical certificate numbers can have price differences of $4,035 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 $762 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 594 comparable stones in this segment. Prices start around $215 and go up to $4,250.
Based on the latest market data, the average asking price is about $942 with a median around $762.
The observed spread is roughly $4,035 across tracked listings, which is about 94.9% 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 $942. The median price is $762, 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 $4,035 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 1.3 carat Cushion diamonds.