3.5 Carat Cushion Natural Diamond Prices Comparison
As of May 2026, 3.5 carat cushion natural diamonds usually range from $1,601 to $99,952, with an average price of $46,713.In the last month, prices for these diamonds are up 0.6%.Compare 66 verified listings across 8 retailers tracked by CaratRadar.
3.5 Carat Cushion Natural Diamond Market Overview
CaratRadar currently tracks 66 verified 3.5-carat cushion natural diamonds listed across 8 online retailers. Prices in this segment range from $1,601 to $99,952, with an average asking price of $46,713 and a median of $45,288.
The price spread of $98,351 (98.4% 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.
66 diamonds tracked in this segment
Price range: $1,601 to $99,952
Average price: $46,713
Median price: $45,288
Available across 8 retailers
Savings potential: up to 98.4%
Price Range Overview
As of May 30, 2026Real market range for this carat, shape, and diamond type.
66
$1,601
$46,713
$45,288
$99,952
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 37.9%GIA | 3.51ct | Cushion | J | SI2 | Ideal
From $19,782
Compare at $31,841
GIA | 3.51ct | Cushion | K | VS1 | Excellent
From $22,092
Compare at $23,221
GIA | 3.59ct | Cushion | J | SI2 | Good
From $23,201
Compare at $23,387
GIA | 3.51ct | Cushion | G | SI2 | Very Good
From $24,440
Compare at $26,654
GIA | 3.51ct | Cushion | J | SI1 | Excellent
From $24,828
Compare at $25,135
GIA | 3.5ct | Cushion | J | VS2 | Excellent
From $25,857
Compare at $26,062
Save 37.1%GIA | 3.56ct | Cushion | I | SI2 | Ideal
From $26,086
Compare at $41,464
Save 34.5%GIA | 3.51ct | Cushion | J | SI1 | Ideal
From $26,930
Compare at $41,100
Save 41%GIA | 3.55ct | Cushion | J | SI2 | Excellent
From $27,750
Compare at $47,003
GIA | 3.51ct | Cushion | J | SI1 | Excellent
From $27,844
Compare at $28,191
Save 34.5%GIA | 3.51ct | Cushion | G | SI2 | Excellent
From $28,474
Compare at $43,472
Save 37.2%GIA | 3.51ct | Cushion | J | VS1 | Excellent
From $29,030
Compare at $46,208
Save 14%GIA | 3.52ct | Cushion | I | SI1 | Good
From $30,037
Compare at $34,927
Save 12.6%GIA | 3.51ct | Cushion | K | VVS2 | Ideal
From $31,283
Compare at $35,795
GIA | 3.5ct | Cushion | I | SI1 | Excellent
From $31,404
Compare at $32,820
Save 30.8%GIA | 3.5ct | Cushion | J | VS2 | Excellent
From $31,908
Compare at $46,132
GIA | 3.51ct | Cushion | D | SI2 | Good
From $32,961
Compare at $35,200
Save 33.2%GIA | 3.51ct | Cushion | J | VS2 | Excellent
From $33,190
Compare at $49,706
Save 34.4%GIA | 3.5ct | Cushion | J | VS1 | Very Good
From $33,284
Compare at $50,736
Save 21.1%GIA | 3.53ct | Cushion | K | VS1 | Excellent
From $33,309
Compare at $42,200
GIA | 3.57ct | Cushion | J | VS2 | Excellent
From $33,892
Compare at $34,320
Save 32.4%GIA | 3.5ct | Cushion | H | SI2 | Excellent
From $34,433
Compare at $50,935
GIA | 3.55ct | Cushion | J | VVS1 | Ideal
From $34,830
Compare at $36,183
Save 33.4%GIA | 3.53ct | Cushion | G | SI2 | Excellent
From $37,829
Compare at $56,817
Save 36%GIA | 3.56ct | Cushion | H | SI2 | Ideal
From $38,027
Compare at $59,376
Save 36%GIA | 3.52ct | Cushion | I | SI2 | Very Good
From $38,385
Compare at $59,939
Save 31.2%GIA | 3.51ct | Cushion | G | VS1 | Excellent
From $38,620
Compare at $56,108
GIA | 3.51ct | Cushion | I | SI1 | Excellent
From $38,842
Compare at $41,352
GIA | 3.53ct | Cushion | H | SI2 | Excellent
From $39,855
Compare at $41,471
GIA | 3.5ct | Cushion | J | VS2 | Excellent
From $40,341
Compare at $41,291
GIA | 3.5ct | Cushion | G | SI1 | Good
From $42,468
Compare at $42,598
GIA | 3.5ct | Cushion | G | SI1 | Excellent
From $42,865
Compare at $43,873
Save 29.6%GIA | 3.5ct | Cushion | I | SI1 | Excellent
From $42,998
Compare at $61,071
GIA | 3.5ct | Cushion | D | VS2 | Ideal
From $43,052
Compare at $45,903
GIA | 3.5ct | Cushion | I | SI2 | Excellent
From $43,659
Compare at $44,685
Save 29.5%GIA | 3.56ct | Cushion | G | VS2
From $44,650
Compare at $63,357
GIA | 3.5ct | Cushion | J | VS2 | Excellent
From $45,008
Compare at $46,065
Save 32.1%GIA | 3.5ct | Cushion | G | SI1 | Excellent
From $46,259
Compare at $68,160
Save 34.9%GIA | 3.51ct | Cushion | G | VS1 | Good
From $46,374
Compare at $71,247
GIA | 3.5ct | Cushion | I | SI1 | Excellent
From $47,191
Compare at $47,882
GIA | 3.52ct | Cushion | G | SI2 | Excellent
From $47,860
Compare at $48,561
GIA | 3.51ct | Cushion | F | VVS2 | Excellent
From $47,909
Compare at $48,596
GIA | 3.51ct | Cushion | I | SI1 | Ideal
From $48,481
Compare at $49,190
GIA | 3.51ct | Cushion | I | SI1 | Ideal
From $48,481
Compare at $49,190
GIA | 3.5ct | Cushion | E | VS2 | Excellent
From $50,707
Compare at $51,021
Save 32.1%GIA | 3.51ct | Cushion | D | SI2 | Excellent
From $50,869
Compare at $74,928
Save 32.6%GIA | 3.55ct | Cushion | F | VVS2 | Very Good
From $53,614
Compare at $79,536
GIA | 3.51ct | Cushion | I | VS2 | Ideal
From $54,292
Compare at $55,083
GIA | 3.5ct | Cushion | H | VVS2 | Excellent
From $55,010
Compare at $55,812
GIA | 3.5ct | Cushion | H | VS2 | Very Good
From $55,470
Compare at $61,505
Entry pricing in this category starts around $1,601.
What to Know When Shopping for 3.5 Carat Cushion Natural Diamonds
- Always compare identical certified diamonds across retailers. Identical certificate numbers can have price differences of $98,351 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 $45,288 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.
- 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 66 comparable stones in this segment. Prices start around $1,601 and go up to $99,952.
Based on the latest market data, the average asking price is about $46,713 with a median around $45,288.
The observed spread is roughly $98,351 across tracked listings, which is about 98.4% 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 $46,713. The median price is $45,288, 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 $98,351 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 3.5 carat Cushion diamonds.