4.5 Carat Cushion Natural Diamond Prices Comparison
As of October 2026, 4.5 carat cushion natural diamonds in the 4.50–4.99 carat benchmark range usually range from $1,601 to $175,250, with an average price of $69,180.In the last month, prices for these diamonds are down 0.1%.Compare 32 verified listings across 9 retailers tracked by CaratRadar.
4.5 Carat Cushion Natural Diamond Market Overview
CaratRadar currently tracks 32 verified 4.5-carat cushion natural diamonds in the 4.50–4.99 carat benchmark range, listed across 9 online retailers. Prices in this segment range from $1,601 to $175,250, with an average asking price of $69,180 and a median of $68,229.
The price spread of $173,649 (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 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.
32 diamonds tracked in the 4.50–4.99 carat benchmark
Price range: $1,601 to $175,250
Average price: $69,180
Median price: $68,229
Available across 9 retailers
Savings potential: up to 99.1%
Price Range Overview
As of Oct 12, 2026Real market range for this carat, shape, and diamond type.
32
$1,601
$69,180
$68,229
$175,250
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.
GIA | 4.52ct | Cushion | K | SI2 | Good
From $33,710
Compare at $37,050
Save 24.1%GIA | 4.52ct | Cushion | K | SI1 | Very Good
From $34,080
Compare at $44,881
GIA | 4.5ct | Cushion | K | SI2 | Excellent
From $36,249
Compare at $36,686
GIA | 4.7ct | Cushion | K | VS2 | Excellent
From $39,367
Compare at $39,370
GIA | 4.5ct | Cushion | K | SI2 | Excellent
From $40,160
Compare at $42,777
GIA | 4.57ct | Cushion | K | VS1 | Excellent
From $41,897
Compare at $41,900
GIA | 4.5ct | Cushion | J | SI2 | Ideal
From $46,639
Compare at $50,534
GIA | 4.5ct | Cushion | J | VVS1 | Excellent
From $48,560
Compare at $52,100
AGS | 4.5ct | Cushion | I | VS2 | Very Good
From $52,907
Compare at $54,000
GIA | 4.5ct | Cushion | I | SI1 | Very Good
From $54,372
Compare at $57,919
GIA | 4.51ct | Cushion | I | SI1 | Ideal
From $54,602
Compare at $58,164
Save 11.7%GIA | 4.51ct | Cushion | J | VS2 | Good
From $54,960
Compare at $62,259
Save 10.1%GIA | 4.55ct | Cushion | J | SI1 | Ideal
From $55,465
Compare at $61,714
Save 15.9%GIA | 4.71ct | Cushion | J | VVS1 | Excellent
From $59,095
Compare at $70,245
Save 45.7%GIA | 4.5ct | Cushion | E | VS2 | Ideal
From $59,510
Compare at $109,638
GIA | 4.51ct | Cushion | I | SI2 | Excellent
From $63,418
Compare at $64,238
Save 10.7%GIA | 4.51ct | Cushion | F | VS2 | Excellent
From $65,609
Compare at $73,496
Save 25.6%GIA | 4.52ct | Cushion | H | VS1 | Excellent
From $66,888
Compare at $89,903
Save 12.6%GIA | 4.5ct | Cushion | I | VS1 | Excellent
From $68,334
Compare at $78,189
GIA | 4.62ct | Cushion | G | VVS2 | Excellent
From $68,529
Compare at $74,660
GIA | 4.5ct | Cushion | I | SI1 | Good
From $71,620
Compare at $74,580
Save 10.9%GIA | 4.83ct | Cushion | H | VS2 | Excellent
From $72,623
Compare at $81,540
GIA | 4.5ct | Cushion | I | VVS2 | Ideal
From $77,339
Compare at $77,340
GIA | 4.5ct | Cushion | J | VS1 | Very Good
From $81,470
Compare at $88,284
Save 24.6%GIA | 4.5ct | Cushion | E | SI1 | Very Good
From $88,504
Compare at $117,450
Save 22%GIA | 4.53ct | Cushion | E | VS2 | Excellent
From $91,427
Compare at $117,214
Save 27.7%GIA | 4.51ct | Cushion | D | VS2 | Good
From $91,759
Compare at $126,844
GIA | 4.51ct | Cushion | F | VS2 | Excellent
From $95,849
Compare at $102,241
Save 22%GIA | 4.52ct | Cushion | G | VVS2 | Excellent
From $101,537
Compare at $130,176
GIA | 4.72ct | Cushion | E | VS1 | Excellent
From $105,478
Compare at $110,031
GIA | 4.72ct | Cushion | D | SI1 | Ideal
From $114,883
Compare at $123,584
Save 22%GIA | 4.52ct | Cushion | F | VVS2 | Very Good
From $117,402
Compare at $150,516
Entry pricing in this benchmark range starts around $1,601.
What to Know When Shopping for 4.5 Carat Cushion Natural Diamonds
- Always compare identical certified diamonds across retailers. Identical certificate numbers can have price differences of $173,649 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 $68,229 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 32 comparable stones in the 4.50–4.99 carat benchmark range. Prices start around $1,601 and go up to $175,250.
Based on the latest market data, the average asking price is about $69,180 with a median around $68,229.
The observed spread is roughly $173,649 across tracked listings, which is about 99.1% from highest to lowest offer in the 4.50–4.99 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 $69,180. The median price is $68,229, 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 9 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 $173,649 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 the 4.50–4.99 carat Cushion diamond benchmark.