3 Carat Cushion Natural Diamond Prices Comparison
As of October 2026, 3 carat cushion natural diamonds in the 3.00–3.49 carat benchmark range usually range from $1,061 to $170,186, with an average price of $35,083.In the last month, prices for these diamonds are down 0.4%.Compare 1,229 verified listings across 11 retailers tracked by CaratRadar.
3 Carat Cushion Natural Diamond Market Overview
CaratRadar currently tracks 1,229 verified 3-carat cushion natural diamonds in the 3.00–3.49 carat benchmark range, listed across 11 online retailers. Prices in this segment range from $1,061 to $170,186, with an average asking price of $35,083 and a median of $34,213.
The price spread of $169,125 (99.4% 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 use the same benchmark range throughout the page and 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.
1,229 diamonds tracked in the 3.00–3.49 carat benchmark
Price range: $1,061 to $170,186
Average price: $35,083
Median price: $34,213
Available across 11 retailers
Savings potential: up to 99.4%
Price Range Overview
As of Oct 12, 2026Real market range for this carat, shape, and diamond type.
1,229
$1,061
$35,083
$34,213
$170,186
Price History
Price Comparison Matrix
Live Listings
See all listingsCompare current retailer offers in the same benchmark range and open any listing for full details.
Save 15.5%IGI | 3.01ct | Cushion | K | SI1 | Very Good
From $7,279
Compare at $8,613
GIA | 3.01ct | Cushion | L | SI2 | Excellent
From $8,279
Compare at $8,748
GIA | 3.05ct | Cushion | L | SI1 | Ideal
From $9,367
Compare at $10,154
Save 25%GIA | 3.01ct | Cushion | L | SI2 | Excellent
From $9,682
Compare at $12,914
Save 16.4%GIA | 3.02ct | Cushion | L | VS2 | Excellent
From $10,479
Compare at $12,541
Save 17.9%GIA | 3.01ct | Cushion | J | SI1 | Excellent
From $10,500
Compare at $12,789
GIA | 3ct | Cushion | K | SI1 | Excellent
From $10,716
Compare at $11,482
GIA | 3ct | Cushion | L | SI2 | Very Good
From $10,742
Compare at $11,509
Save 17.5%GIA | 3.01ct | Cushion | L | VS2 | Excellent
From $10,937
Compare at $13,250
Save 12.6%GIA | 3.09ct | Cushion | L | VS1 | Excellent
From $11,018
Compare at $12,610
GIA | 3.06ct | Cushion | L | SI1 | Excellent
From $11,106
Compare at $11,710
GIA | 3.09ct | Cushion | L | VS1 | Excellent
From $11,110
Compare at $11,715
GIA | 3ct | Cushion | L | VS1 | Excellent
From $11,138
Compare at $11,931
GIA | 3.02ct | Cushion | K | SI2 | Excellent
From $11,172
Compare at $11,781
Save 17.2%GIA | 3.03ct | Cushion | I | SI2 | Very Good
From $11,192
Compare at $13,521
IGI | 3.01ct | Cushion | H | SI2 | Excellent
From $11,218
Compare at $11,426
Save 17.5%GIA | 3.01ct | Cushion | K | SI1 | Ideal
From $11,286
Compare at $13,678
IGI | 3.1ct | Cushion | G | SI2 | Excellent
From $11,350
Compare at $11,656
Save 24.1%GIA | 3.02ct | Cushion | K | SI2 | Excellent
From $11,515
Compare at $15,168
Save 17%GIA | 3.24ct | Cushion | J | SI1 | Very Good
From $11,607
Compare at $13,989
GIA | 3.01ct | Cushion | K | SI2 | Excellent
From $11,811
Compare at $12,647
Save 19.2%IGI | 3.01ct | Cushion | J | SI1 | Very Good
From $11,845
Compare at $14,666
Save 15.1%GIA | 3.01ct | Cushion | K | VS2 | Good
From $11,980
Compare at $14,104
Save 38.3%GIA | 3.01ct | Cushion | K | SI2 | Ideal
From $12,055
Compare at $19,543
GIA | 3.01ct | Cushion | L | SI2 | Ideal
From $12,243
Compare at $12,897
GIA | 3.01ct | Cushion | L | VS1 | Excellent
From $12,288
Compare at $12,945
Save 24.1%GIA | 3.01ct | Cushion | J | SI2 | Excellent
From $12,490
Compare at $16,449
GIA | 3ct | Cushion | J | SI2 | Excellent
From $12,623
Compare at $13,512
GIA | 3.01ct | Cushion | K | SI2 | Very Good
From $12,775
Compare at $13,122
GIA | 3.01ct | Cushion | J | SI2 | Excellent
From $12,867
Compare at $13,729
GIA | 3.01ct | Cushion | K | SI2 | Ideal
From $12,950
Compare at $13,710
GIA | 3ct | Cushion | K | SI1 | Excellent
From $12,981
Compare at $13,742
GIA | 3ct | Cushion | K | SI2 | Excellent
From $12,989
Compare at $13,751
GIA | 3ct | Cushion | J | SI1 | Good
From $13,000
Compare at $13,768
Save 12.5%HRD | 3.01ct | Cushion | K | VS1 | Excellent
From $13,028
Compare at $14,887
Save 25%GIA | 3.01ct | Cushion | L | SI2 | Excellent
From $13,144
Compare at $17,531
GIA | 3ct | Cushion | K | VS2 | Ideal
From $13,371
Compare at $14,282
GIA | 3.02ct | Cushion | K | SI2 | Ideal
From $13,373
Compare at $14,403
Save 21.4%GIA | 3.01ct | Cushion | J | VS2 | Ideal
From $13,382
Compare at $17,018
Save 25.7%GIA | 3.08ct | Cushion | K | SI1 | Very Good
From $13,382
Compare at $18,013
GIA | 3.01ct | Cushion | K | SI2 | Excellent
From $13,398
Compare at $14,311
Save 18.3%GIA | 3.01ct | Cushion | L | VVS2 | Very Good
From $13,577
Compare at $16,614
GIA | 3ct | Cushion | K | SI2 | Ideal
From $13,594
Compare at $14,520
GIA | 3.01ct | Cushion | J | SI2 | Excellent
From $13,689
Compare at $14,286
Save 13%GIA | 3.02ct | Cushion | K | SI2 | Very Good
From $13,781
Compare at $15,836
Save 11%GIA | 3.01ct | Cushion | J | SI1 | Very Good
From $13,866
Compare at $15,578
GIA | 3.3ct | Cushion | K | SI2 | Very Good
From $13,906
Compare at $14,745
Save 19.8%IGI | 3.01ct | Cushion | K | SI1 | Very Good
From $13,946
Compare at $17,379
Save 30.5%GIA | 3.1ct | Cushion | J | SI2 | Excellent
From $13,976
Compare at $20,100
GIA | 3ct | Cushion | K | SI2 | Excellent
From $13,997
Compare at $14,948
Entry pricing in this benchmark range starts around $1,061.
What to Know When Shopping for 3 Carat Cushion Natural Diamonds
- Always compare identical certified diamonds across retailers. Identical certificate numbers can have price differences of $169,125 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 $34,213 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 1,229 comparable stones in the 3.00–3.49 carat benchmark range. Prices start around $1,061 and go up to $170,186.
Based on the latest market data, the average asking price is about $35,083 with a median around $34,213.
The observed spread is roughly $169,125 across tracked listings, which is about 99.4% from highest to lowest offer in the 3.00–3.49 carat benchmark range.
We refresh pricing data daily so these pages stay current with market changes.
Based on completed market data, the fair market benchmark is $35,083. The median price is $34,213, 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 11 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 $169,125 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.
Related Price Categories
Explore adjacent carat ranges and shapes to compare market shifts.
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Tracking Natural inventory for the 3.00–3.49 carat Cushion diamond benchmark.