3.5 Carat Cushion Natural Diamond Prices Comparison
As of February 2026, 3.5 carat cushion natural diamonds usually range from $857 to $91,720, with an average price of $40,497.In the last month, prices for these diamonds are down 0.2%.Compare 48 verified listings across 7 retailers tracked by CaratRadar.
3.5 Carat Cushion Natural Diamond Market Overview
CaratRadar currently tracks 48 verified 3.5-carat cushion natural diamonds listed across 7 online retailers. Prices in this segment range from $857 to $91,720, with an average asking price of $40,497 and a median of $45,367.
The price spread of $90,863 (99.1% 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.
48 diamonds tracked in this segment
Price range: $857 to $91,720
Average price: $40,497
Median price: $45,367
Available across 7 retailers
Savings potential: up to 99.1%
Price Range Overview
As of Feb 28, 2026Real market range for this carat, shape, and diamond type.
48
$857
$40,497
$45,367
$91,720
Price History
Price Comparison Matrix
Live Listings
See all listingsCompare current retailer offers for this exact segment and open any listing for full details.
IGISave 57.4%3.46ct | Cushion | D | VVS2 | Ideal
From $2,508
Compare at $5,892
IGISave 61.7%3.48ct | Cushion | F | VS2 | Ideal
From $1,020
Compare at $2,659
GIASave 64.5%3.49ct | Cushion | E | VVS1 | Ideal
From $2,963
Compare at $8,350
GIASave 14.8%3.5ct | Cushion | D | VVS2 | Excellent
From $81,104
Compare at $95,229
GIA3.5ct | Cushion | D | VS2 | Ideal
From $52,340
Compare at $55,317
GIASave 15.5%3.5ct | Cushion | G | VVS2 | Excellent
From $47,334
Compare at $56,031
GIA3.5ct | Cushion | H | VS2 | Ideal
From $32,050
Compare at $34,589
GIA3.5ct | Cushion | H | SI2 | Excellent
From $40,708
Compare at $44,835
GIA3.5ct | Cushion | F | SI2 | Very Good
From $31,815
Compare at $33,642
GIASave 63.5%3.5ct | Cushion | E | VVS2 | Ideal
From $2,295
Compare at $6,283
GIASave 14.9%3.5ct | Cushion | G | VS2 | Excellent
From $60,858
Compare at $71,475
GIA3.5ct | Cushion | J | SI1 | Ideal
From $34,800
Compare at $37,044
GIASave 35.7%3.5ct | Cushion | G | VS2 | Excellent
From $66,024
Compare at $102,724
GIA3.5ct | Cushion | H | VS1 | Ideal
From $67,808
Compare at $70,198
GIA3.5ct | Cushion | G | SI1 | Excellent
From $59,052
Compare at $65,074
GIA3.5ct | Cushion | I | VS1 | Ideal
From $52,350
Compare at $55,816
GIA3.5ct | Cushion | D | SI1 | Very Good
From $75,560
Compare at $78,246
IGISave 83.5%3.5ct | Cushion | H | VS1 | Ideal
From $1,037
Compare at $6,290
GIASave 28%3.51ct | Cushion | I | VS2 | Ideal
From $49,595
Compare at $68,861
GIA3.51ct | Cushion | I | VS2 | Very Good
From $57,288
Compare at $59,873
GIA3.51ct | Cushion | H | VS2 | Excellent
From $65,401
Compare at $67,723
GIASave 15.5%3.51ct | Cushion | F | SI1 | Excellent
From $56,511
Compare at $66,880
GIASave 14.8%3.51ct | Cushion | D | SI1 | Excellent
From $69,630
Compare at $81,766
GIASave 43.9%3.51ct | Cushion | D | VVS2 | Ideal
From $2,619
Compare at $4,670
GIASave 42.5%3.51ct | Cushion | G | VS1 | Excellent
From $43,400
Compare at $75,433
GIASave 17.8%3.51ct | Cushion | J | VS1 | Excellent
From $33,451
Compare at $40,676
GIASave 72.3%3.51ct | Cushion | D | VS1 | Ideal
From $2,341
Compare at $8,450
GIASave 10.7%3.51ct | Cushion | G | SI1 | Excellent
From $56,845
Compare at $63,635
GIA3.51ct | Cushion | J | VS2 | Excellent
From $35,590
Compare at $37,892
GIA3.51ct | Cushion | H | SI1 | Excellent
From $47,857
Compare at $48,102
GIA3.51ct | Cushion | G | SI1 | Excellent
From $54,807
Compare at $56,832
GIASave 14.8%3.51ct | Cushion | G | VS1 | Good
From $50,352
Compare at $59,125
GIASave 14.8%3.51ct | Cushion | G | VVS2 | Excellent
From $66,260
Compare at $77,812
IGISave 62%3.51ct | Cushion | G | VS2 | Ideal
From $1,097
Compare at $2,888
GIASave 15.5%3.52ct | Cushion | G | SI2 | Excellent
From $42,504
Compare at $50,320
GIA3.52ct | Cushion | F | VS1 | Excellent
From $71,313
Compare at $74,360
GIASave 14.8%3.52ct | Cushion | E | VVS2 | Excellent
From $81,204
Compare at $95,345
GIA3.52ct | Cushion | E | SI1 | Excellent
From $72,571
Compare at $75,664
IGISave 75.7%3.52ct | Cushion | E | VS1 | Ideal
From $1,855
Compare at $7,620
GIA3.52ct | Cushion | I | VS2 | Excellent
From $40,868
Compare at $42,502
GIA3.52ct | Cushion | I | SI1 | Good
From $34,927
Compare at $38,660
IGISave 87%3.52ct | Cushion | E | VS2 | Very Good
From $857
Compare at $6,610
GIASave 37.9%3.53ct | Cushion | D | VS2 | Excellent
From $63,597
Compare at $102,429
GIA3.53ct | Cushion | E | VS1 | Excellent
From $91,720
Compare at $94,407
IGISave 51.5%3.53ct | Cushion | FANCY | VVS2 | Very Good
From $1,052
Compare at $2,168
IGISave 17.7%3.53ct | Cushion | E | VVS2 | Very Good
From $1,017
Compare at $1,236
GIASave 31.9%3.54ct | Cushion | K | VS2 | Ideal
From $32,136
Compare at $47,219
GIASave 54.7%3.54ct | Cushion | H | VS1 | Ideal
From $3,566
Compare at $7,880
Entry pricing in this category starts around $857.
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 $90,863 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 $45,367 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 48 comparable stones in this segment. Prices start around $857 and go up to $91,720.
Based on the latest market data, the average asking price is about $40,497 with a median around $45,367.
The observed spread is roughly $90,863 across tracked listings, which is about 99.1% 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 $45,367, 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 $90,863 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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Tracking Natural inventory for 3.5 carat Cushion diamonds.