1.5 Carat Cushion Natural Diamond Prices Comparison
As of May 2026, 1.5 carat cushion natural diamonds usually range from $663 to $17,992, with an average price of $7,109.In the last month, prices for these diamonds are up 0.1%.Compare 3,439 verified listings across 10 retailers tracked by CaratRadar.
1.5 Carat Cushion Natural Diamond Market Overview
CaratRadar currently tracks 3,439 verified 1.5-carat cushion natural diamonds listed across 10 online retailers. Prices in this segment range from $663 to $17,992, with an average asking price of $7,109 and a median of $6,745.
The price spread of $17,330 (96.3% 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.
3,439 diamonds tracked in this segment
Price range: $663 to $17,992
Average price: $7,109
Median price: $6,745
Available across 10 retailers
Savings potential: up to 96.3%
Price Range Overview
As of May 31, 2026Real market range for this carat, shape, and diamond type.
3,439
$663
$7,109
$6,745
$17,992
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 32.5%GIA | 1.5ct | Cushion | L | SI1 | Ideal
From $1,606
Compare at $2,380
Save 33.1%GIA | 1.5ct | Cushion | K | SI2 | Very Good
From $1,641
Compare at $2,454
Save 32.5%GIA | 1.5ct | Cushion | K | SI1 | Good
From $1,725
Compare at $2,554
Save 35.3%GIA | 1.5ct | Cushion | L | SI2 | Excellent
From $1,762
Compare at $2,722
Save 35.3%GIA | 1.51ct | Cushion | L | SI2 | Excellent
From $1,774
Compare at $2,740
Save 33.1%GIA | 1.51ct | Cushion | L | SI1 | Ideal
From $1,781
Compare at $2,664
Save 35.3%GIA | 1.53ct | Cushion | L | SI2 | Excellent
From $1,797
Compare at $2,776
Save 35.2%GIA | 1.5ct | Cushion | L | SI1 | Very Good
From $1,879
Compare at $2,902
Save 35.2%GIA | 1.5ct | Cushion | L | SI1 | Excellent
From $1,879
Compare at $2,902
Save 35.2%GIA | 1.5ct | Cushion | L | SI1 | Very Good
From $1,879
Compare at $2,902
Save 35.2%GIA | 1.51ct | Cushion | L | SI1 | Excellent
From $1,892
Compare at $2,921
Save 35.2%GIA | 1.51ct | Cushion | L | SI1 | Excellent
From $1,892
Compare at $2,921
Save 35.2%GIA | 1.51ct | Cushion | L | SI1 | Very Good
From $1,892
Compare at $2,921
Save 33.9%GIA | 1.51ct | Cushion | K | SI1 | Excellent
From $1,938
Compare at $2,931
Save 12.2%GIA | 1.5ct | Cushion | J | SI2 | Good
From $1,946
Compare at $2,216
Save 32.5%GIA | 1.51ct | Cushion | L | SI1 | Ideal
From $1,956
Compare at $2,897
Save 33.2%GIA | 1.5ct | Cushion | K | VS2 | Good
From $1,966
Compare at $2,941
Save 35.2%GIA | 1.5ct | Cushion | L | VS2 | Very Good
From $1,997
Compare at $3,082
Save 35.2%GIA | 1.5ct | Cushion | L | VS2 | Very Good
From $1,997
Compare at $3,082
Save 35.2%GIA | 1.5ct | Cushion | L | VS2 | Very Good
From $1,997
Compare at $3,082
GIA | 1.52ct | Cushion | J | SI2 | Good
From $2,000
Compare at $2,192
Save 35.2%GIA | 1.6ct | Cushion | L | SI1 | Excellent
From $2,004
Compare at $3,094
Save 32.5%GIA | 1.5ct | Cushion | K | VS1 | Very Good
From $2,106
Compare at $3,120
Save 26.3%GIA | 1.52ct | Cushion | K | SI1 | Excellent
From $2,115
Compare at $2,869
Save 33.1%GIA | 1.51ct | Cushion | L | VS1 | Very Good
From $2,128
Compare at $3,182
GIA | 1.5ct | Cushion | L | SI1 | Excellent
From $2,130
Compare at $2,160
Save 32.2%GIA | 1.51ct | Cushion | J | SI2 | Excellent
From $2,140
Compare at $3,157
Save 32.5%GIA | 1.51ct | Cushion | K | VVS2 | Excellent
From $2,176
Compare at $3,224
Save 33.9%GIA | 1.5ct | Cushion | K | SI2 | Excellent
From $2,181
Compare at $3,298
Save 36.2%GIA | 1.51ct | Cushion | K | SI1 | Excellent
From $2,198
Compare at $3,445
Save 22.9%GIA | 1.5ct | Cushion | K | VS2 | Good
From $2,210
Compare at $2,867
Save 23.6%GIA | 1.51ct | Cushion | L | SI2 | Good
From $2,212
Compare at $2,896
Save 36.2%GIA | 1.52ct | Cushion | K | SI1 | Excellent
From $2,212
Compare at $3,468
Save 36.2%GIA | 1.52ct | Cushion | K | SI1 | Excellent
From $2,212
Compare at $3,468
Save 22.9%GIA | 1.51ct | Cushion | K | SI1 | Very Good
From $2,216
Compare at $2,876
Save 20.1%IGI | 1.5ct | Cushion | K | VVS2 | Ideal
From $2,220
Compare at $2,779
Save 23%GIA | 1.51ct | Cushion | J | SI2 | Very Good
From $2,248
Compare at $2,918
GIA | 1.5ct | Cushion | J | SI2 | Excellent
From $2,256
Compare at $2,408
Save 35.5%GIA | 1.51ct | Cushion | J | SI1 | Very Good
From $2,265
Compare at $3,513
Save 32.9%GIA | 1.51ct | Cushion | K | SI1 | Very Good
From $2,280
Compare at $3,399
Save 34.5%GIA | 1.51ct | Cushion | H | SI1 | Good
From $2,304
Compare at $3,519
IGI | 1.5ct | Cushion | K | VS2 | Very Good
From $2,311
Compare at $2,315
Save 23%GIA | 1.51ct | Cushion | J | SI2 | Excellent
From $2,314
Compare at $3,007
Save 26.3%GIA | 1.51ct | Cushion | K | VS1 | Excellent
From $2,315
Compare at $3,141
Save 37.1%GIA | 1.51ct | Cushion | I | SI1 | Very Good
From $2,315
Compare at $3,678
Save 23.5%GIA | 1.51ct | Cushion | L | VS2 | Excellent
From $2,332
Compare at $3,050
Save 23.5%GIA | 1.5ct | Cushion | L | SI2 | Excellent
From $2,336
Compare at $3,056
Save 26.7%GIA | 1.51ct | Cushion | J | SI1 | Excellent
From $2,343
Compare at $3,198
Save 26.8%GIA | 1.5ct | Cushion | K | SI1 | Excellent
From $2,357
Compare at $3,218
Save 20.3%GIA | 1.51ct | Cushion | L | VS1 | Very Good
From $2,362
Compare at $2,964
Entry pricing in this category starts around $663.
What to Know When Shopping for 1.5 Carat Cushion Natural Diamonds
- Always compare identical certified diamonds across retailers. Identical certificate numbers can have price differences of $17,330 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 $6,745 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.
- Compare natural vs. lab-grown options for the same carat and shape. Lab-grown diamonds are chemically identical but often 30-50% less expensive.
- 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 3,439 comparable stones in this segment. Prices start around $663 and go up to $17,992.
Based on the latest market data, the average asking price is about $7,109 with a median around $6,745.
The observed spread is roughly $17,330 across tracked listings, which is about 96.3% 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 $7,109. The median price is $6,745, 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 10 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 $17,330 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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