1.5 Carat Cushion Natural Diamond Prices Comparison
As of February 2026, 1.5 carat cushion natural diamonds usually range from $447 to $22,350, with an average price of $6,951.In the last month, prices for these diamonds are down 1.6%.Compare 1,811 verified listings across 7 retailers tracked by CaratRadar.
1.5 Carat Cushion Natural Diamond Market Overview
CaratRadar currently tracks 1,811 verified 1.5-carat cushion natural diamonds listed across 7 online retailers. Prices in this segment range from $446 to $22,350, with an average asking price of $6,951 and a median of $6,403.
The price spread of $21,903 (98.0% 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.
1,811 diamonds tracked in this segment
Price range: $446 to $22,350
Average price: $6,951
Median price: $6,403
Available across 7 retailers
Savings potential: up to 98.0%
Price Range Overview
As of Feb 28, 2026Real market range for this carat, shape, and diamond type.
1,811
$447
$6,951
$6,403
$22,350
Price History
Price Comparison Matrix
Live Listings
See all listingsCompare current retailer offers for this exact segment and open any listing for full details.
GIA1.45ct | Cushion | I | VS1 | Excellent
From $6,939
Compare at $7,102
IGISave 50.9%1.45ct | Cushion | FANCY | IF | Very Good
From $985
Compare at $2,008
GIASave 14.2%1.45ct | Cushion | F | VVS2 | Very Good
From $9,720
Compare at $11,331
GIASave 34.5%1.45ct | Cushion | H | VVS2 | Excellent
From $7,379
Compare at $11,268
GIASave 30.7%1.45ct | Cushion | J | VVS2 | Excellent
From $5,610
Compare at $8,101
GIASave 31.5%1.45ct | Cushion | D | VS2 | Excellent
From $9,867
Compare at $14,400
IGISave 60.9%1.46ct | Cushion | FANCY | SI1 | Ideal
From $483
Compare at $1,233
GIA1.46ct | Cushion | K | VS1 | Good
From $4,184
Compare at $4,352
GIASave 31%1.46ct | Cushion | I | VVS1 | Excellent
From $6,478
Compare at $9,394
GIASave 18.1%1.46ct | Cushion | I | VS2 | Very Good
From $4,579
Compare at $5,591
GIASave 31.6%1.46ct | Cushion | FANCY | VVS2 | Good
From $6,426
Compare at $9,394
GIASave 31.6%1.47ct | Cushion | H | VVS2 | Excellent
From $7,709
Compare at $11,262
GIASave 39.2%1.47ct | Cushion | FANCY | VS1 | Good
From $7,918
Compare at $13,034
IGISave 64.3%1.47ct | Cushion | D | VS1 | Very Good
From $622
Compare at $1,740
GIASave 32%1.47ct | Cushion | F | VVS2 | Excellent
From $11,889
Compare at $17,487
GIASave 30.3%1.48ct | Cushion | I | VS2 | Excellent
From $4,376
Compare at $6,280
GIASave 31.8%1.48ct | Cushion | G | VS1 | Excellent
From $8,942
Compare at $13,105
GIA1.49ct | Cushion | H | IF | Excellent
From $8,153
Compare at $8,581
GIA1.49ct | Cushion | F | SI2 | Excellent
From $7,600
Compare at $7,734
GIA1.49ct | Cushion | F | IF | Excellent
From $10,419
Compare at $10,996
GIA1.49ct | Cushion | J | SI1 | Excellent
From $4,390
Compare at $4,599
GIA1.5ct | Cushion | G | SI1 | Excellent
From $7,143
Compare at $7,322
GIASave 37.6%1.5ct | Cushion | I | VVS1 | Very Good
From $5,495
Compare at $8,810
GIASave 38.7%1.5ct | Cushion | I | VVS2 | Excellent
From $4,538
Compare at $7,408
GIASave 34.9%1.5ct | Cushion | H | VS1 | Excellent
From $8,550
Compare at $13,128
GIASave 12.5%1.5ct | Cushion | G | VVS1 | Excellent
From $7,246
Compare at $8,282
GIASave 32.9%1.5ct | Cushion | J | VVS1 | Very Good
From $3,849
Compare at $5,740
GIA1.5ct | Cushion | J | IF | Excellent
From $5,580
Compare at $5,648
GIASave 16.8%1.5ct | Cushion | F | VS1 | Ideal
From $7,540
Compare at $9,066
GIASave 27.2%1.5ct | Cushion | H | VS2 | Excellent
From $5,172
Compare at $7,100
GIASave 22.9%1.5ct | Cushion | H | VVS1 | Very Good
From $6,090
Compare at $7,900
GIASave 34.8%1.5ct | Cushion | G | VVS1 | Excellent
From $7,780
Compare at $11,929
GIA1.5ct | Cushion | D | SI2 | Excellent
From $7,250
Compare at $7,378
GIASave 30.9%1.5ct | Cushion | E | VVS2 | Very Good
From $12,071
Compare at $17,470
GIA1.5ct | Cushion | E | VS1 | Excellent
From $10,886
Compare at $11,664
GIA1.5ct | Cushion | E | SI1 | Excellent
From $9,720
Compare at $9,990
GIA1.5ct | Cushion | G | VVS2 | Ideal
From $7,751
Compare at $7,760
GIASave 18.2%1.5ct | Cushion | H | VS1 | Excellent
From $5,878
Compare at $7,186
GIASave 22.9%1.5ct | Cushion | H | VS1 | Excellent
From $5,631
Compare at $7,300
GIASave 25.6%1.5ct | Cushion | H | SI2 | Good
From $4,380
Compare at $5,890
GIASave 14.2%1.5ct | Cushion | I | VS2 | Ideal
From $3,775
Compare at $4,400
GIASave 32.8%1.5ct | Cushion | J | SI1 | Excellent
From $4,870
Compare at $7,248
GIASave 53.1%1.5ct | Cushion | F | VS1 | Excellent
From $6,818
Compare at $14,527
GIA1.5ct | Cushion | D | VVS2 | Very Good
From $8,310
Compare at $8,945
GIA1.5ct | Cushion | F | SI1 | Excellent
From $5,314
Compare at $5,844
GIASave 31.8%1.5ct | Cushion | F | SI1 | Excellent
From $7,494
Compare at $10,988
GIASave 13%1.5ct | Cushion | I | VS1 | Excellent
From $4,652
Compare at $5,345
GIASave 32%1.5ct | Cushion | H | VS2 | Excellent
From $6,787
Compare at $9,986
GIA1.5ct | Cushion | H | VS2 | Very Good
From $10,978
Compare at $11,088
GIASave 40.3%1.5ct | Cushion | D | VS1 | Excellent
From $10,297
Compare at $17,244
Entry pricing in this category starts around $447.
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 $21,903 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 $6,403 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 1,811 comparable stones in this segment. Prices start around $446 and go up to $22,350.
Based on the latest market data, the average asking price is about $6,951 with a median around $6,403.
The observed spread is roughly $21,903 across tracked listings, which is about 98.0% 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 $6,403, 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 7 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 $21,903 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 Natural inventory for 1.5 carat Cushion diamonds.