4.5 Carat Cushion Natural Diamond Prices Comparison
A 4.5 carat cushion natural diamond typically costs $68,139 (median of 32 listings at 10 online stores), with most between $30,699 and $107,773. Average prices fell 0.1% over the last month. Updated .
Average $68,883. Listings run from $1,601 to $175,154 in the 4.50–4.99 carat range.
See the live listings4.5 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 10 online retailers. Prices in this segment range from $1,601 to $175,154, with an average asking price of $68,883 and a median of $68,139.
Across this category, asking prices span $173,553 (99.1% from the most expensive to the cheapest listing). The same certified diamond can also be listed at different prices by different retailers, which is why CaratRadar compares stones by certificate number.
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 $175,154
Average price: $68,883
Median price: $68,139
Available across 10 retailers
Category price spread: 99.1%
Price Range Overview
As of Oct 23, 2026Real market range for this carat, shape, and diamond type.
32
$1,601
$68,883
$68,139
$175,154
Price History
Price Comparison Matrix
Compare nearby
Prices for the next carat weights, other shapes and the lab grown twin.
Nearby carat weights
Live Listings
See all listingsCompare current retailer offers in the same benchmark range and open any listing for full details.
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 | 4.52ct | Cushion | K | SI2 | Good
From $36,409
Compare at $37,050
GIA | 4.7ct | Cushion | K | VS2 | Excellent
From $39,368
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
Save 10.4%GIA | 4.5ct | Cushion | J | VVS1 | Excellent
From $48,560
Compare at $54,210
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 $62,262
Save 10.1%GIA | 4.55ct | Cushion | J | SI1 | Ideal
From $55,465
Compare at $61,714
GIA | 4.5ct | Cushion | J | VS1 | Ideal
From $55,588
Compare at $59,670
Save 45.8%GIA | 4.5ct | Cushion | E | VS2 | Ideal
From $57,660
Compare at $106,315
Save 12.4%GIA | 4.71ct | Cushion | J | VVS1 | Excellent
From $61,544
Compare at $70,233
Save 10.7%GIA | 4.51ct | Cushion | F | VS2 | Excellent
From $63,020
Compare at $70,600
GIA | 4.51ct | Cushion | I | SI2 | Excellent
From $63,418
Compare at $64,238
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 | 4.5ct | Cushion | I | SI1 | Good
From $71,620
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
GIA | 4.5ct | Cushion | H | VS2 | Good
From $86,276
Compare at $88,513
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 $114,696
Compare at $121,143
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, because the same certificate can be listed at different prices by different stores. Across this whole category, asking prices span $173,553 from the cheapest to the most expensive listing.
- 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 $68,139 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 $175,154.
Based on the latest market data, the average asking price is about $68,883 with a median around $68,139.
The observed spread is roughly $173,553 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 $68,883. The median price is $68,139, 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 10 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. Across this category, asking prices span $173,553 from the cheapest to the most expensive listing, and the same certified diamond can also carry different prices at different 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.
Tools and Guides
Tracking Natural inventory for the 4.50–4.99 carat Cushion diamond benchmark.