4.5 Carat Round Natural Diamond Prices Comparison
As of May 2026, 4.5 carat round natural diamonds usually range from $4,889 to $267,389, with an average price of $79,033.In the last month, prices for these diamonds are down 0.1%.Compare 98 verified listings across 9 retailers tracked by CaratRadar.
4.5 Carat Round Natural Diamond Market Overview
CaratRadar currently tracks 98 verified 4.5-carat round natural diamonds listed across 9 online retailers. Prices in this segment range from $4,889 to $267,389, with an average asking price of $79,033 and a median of $70,732.
The price spread of $262,500 (98.2% 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.
98 diamonds tracked in this segment
Price range: $4,889 to $267,389
Average price: $79,033
Median price: $70,732
Available across 9 retailers
Savings potential: up to 98.2%
Price Range Overview
As of May 29, 2026Real market range for this carat, shape, and diamond type.
98
$4,889
$79,033
$70,732
$267,389
Price History
Price Comparison Matrix
Live Listings
See all listingsCompare current retailer offers for this exact segment and open any listing for full details.
IGI | 4.56ct | Round | K | SI1 | Excellent
From $26,930
Compare at $29,425
Save 16.4%IGI | 4.52ct | Round | K | VS2 | Excellent
From $29,205
Compare at $34,915
GIA | 4.5ct | Round | L | VS1 | Excellent
From $30,379
Compare at $32,210
Save 17%IGI | 4.5ct | Round | I | SI1 | Excellent
From $30,915
Compare at $37,245
Save 20.6%GIA | 4.51ct | Round | K | SI1 | Excellent
From $31,163
Compare at $39,238
Save 31.4%GIA | 4.52ct | Round | K | SI1 | Excellent
From $40,220
Compare at $58,645
IGI | 4.51ct | Round | J | VS1 | Excellent
From $40,800
Compare at $45,001
Save 23.5%GIA | 4.5ct | Round | K | SI2 | Excellent
From $41,174
Compare at $53,798
Save 23.8%GIA | 4.51ct | Round | I | SI2 | Excellent
From $41,651
Compare at $54,690
Save 20.3%GIA | 4.5ct | Round | K | SI2 | Excellent
From $42,865
Compare at $53,798
IGI | 4.51ct | Round | J | VS1 | Excellent
From $43,339
Compare at $47,783
Save 25%GIA | 4.51ct | Round | K | SI1 | Excellent
From $44,426
Compare at $59,239
GIA | 4.53ct | Round | J | SI2 | Ideal
From $45,071
Compare at $45,206
Save 16.7%GIA | 4.52ct | Round | K | SI1 | Excellent
From $46,135
Compare at $55,357
Save 13.5%IGI | 4.5ct | Round | I | IF | Excellent
From $48,370
Compare at $55,923
IGI | 4.5ct | Round | H | SI1 | Ideal
From $49,339
Compare at $53,239
Save 35%GIA | 4.55ct | Round | J | SI1 | Excellent
From $50,559
Compare at $77,739
Save 20.3%GIA | 4.56ct | Round | K | VS2 | Excellent
From $50,676
Compare at $63,589
IGI | 4.54ct | Round | J | VVS2 | Excellent
From $51,967
Compare at $52,410
IGI | 4.58ct | Round | H | VS1 | Excellent
From $53,520
Compare at $59,075
Save 34.5%GIA | 4.51ct | Round | J | SI2 | Excellent
From $55,225
Compare at $84,341
Save 20.3%GIA | 4.51ct | Round | J | SI1 | Excellent
From $55,491
Compare at $69,624
IGI | 4.58ct | Round | I | VVS1 | Excellent
From $55,812
Compare at $57,405
Save 14.5%GIA | 4.51ct | Round | I | SI2 | Excellent
From $56,429
Compare at $66,025
IGI | 4.53ct | Round | H | SI1 | Excellent
From $57,225
Compare at $59,958
Save 18.6%GIA | 4.51ct | Round | L | VVS1 | Excellent
From $57,662
Compare at $70,874
Save 13.1%GIA | 4.5ct | Round | J | VS1 | Ideal
From $58,380
Compare at $67,209
GIA | 4.5ct | Round | I | SI2 | Ideal
From $58,620
Compare at $59,993
Save 10.1%GIA | 4.5ct | Round | J | VS1 | Ideal
From $58,720
Compare at $65,336
Save 21.4%GIA | 4.53ct | Round | K | VS1 | Excellent
From $58,856
Compare at $74,859
Save 32.9%GIA | 4.5ct | Round | J | VS1 | Excellent
From $59,715
Compare at $88,950
IGI | 4.54ct | Round | I | IF | Excellent
From $59,775
Compare at $65,995
Save 13.9%GIA | 4.59ct | Round | J | VS1 | Excellent
From $60,545
Compare at $70,293
GIA | 4.5ct | Round | H | SI2 | Ideal
From $61,525
Compare at $66,375
IGI | 4.56ct | Round | H | VS1 | Excellent
From $62,515
Compare at $66,161
GIA | 4.5ct | Round | I | SI2 | Excellent
From $62,767
Compare at $67,200
Save 34.1%GIA | 4.5ct | Round | I | VS2 | Excellent
From $63,012
Compare at $95,616
Save 13.9%GIA | 4.5ct | Round | E | SI2 | Ideal
From $63,342
Compare at $73,538
IGI | 4.5ct | Round | H | VVS1 | Excellent
From $63,415
Compare at $69,492
Save 13.9%GIA | 4.54ct | Round | I | VS2 | Excellent
From $64,689
Compare at $75,099
Save 27%GIA | 4.5ct | Round | J | VS1 | Excellent
From $64,972
Compare at $89,004
Save 13.9%GIA | 4.59ct | Round | I | VS1 | Excellent
From $65,559
Compare at $76,109
IGI | 4.5ct | Round | I | VVS2 | Excellent
From $66,960
Compare at $68,760
Save 21%GIA | 4.52ct | Round | I | SI1 | Excellent
From $67,089
Compare at $84,899
Save 21%GIA | 4.52ct | Round | I | SI1 | Excellent
From $67,089
Compare at $84,899
Save 16.4%GIA | 4.5ct | Round | K | VS1 | Excellent
From $67,722
Compare at $81,011
Save 33.3%GIA | 4.5ct | Round | I | SI1 | Excellent
From $68,280
Compare at $102,401
Save 13.9%GIA | 4.51ct | Round | I | VS2 | Excellent
From $68,618
Compare at $79,657
Save 16.1%GIA | 4.5ct | Round | H | VVS2 | Excellent
From $69,885
Compare at $83,280
Save 22.9%GIA | 4.59ct | Round | I | VS2 | Excellent
From $70,320
Compare at $91,200
Entry pricing in this category starts around $4,889.
What to Know When Shopping for 4.5 Carat Round Natural Diamonds
- Always compare identical certified diamonds across retailers. Identical certificate numbers can have price differences of $262,500 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 $70,732 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.
- Round brilliants command a premium due to higher rough waste during cutting. If budget matters, consider oval or cushion shapes for similar visual size.
Frequently Asked Questions
We currently track 98 comparable stones in this segment. Prices start around $4,889 and go up to $267,389.
Based on the latest market data, the average asking price is about $79,033 with a median around $70,732.
The observed spread is roughly $262,500 across tracked listings, which is about 98.2% 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 $79,033. The median price is $70,732, 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 $262,500 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.
4.4 Carat Round Natural Diamond Prices
4.6 Carat Round Natural Diamond Prices
4.3 Carat Round Natural Diamond Prices
4.7 Carat Round Natural Diamond Prices
4.2 Carat Round Natural Diamond Prices
4.8 Carat Round Natural Diamond Prices
4.1 Carat Round Natural Diamond Prices
4.5 Carat Emerald Natural Diamond Prices
4.5 Carat Oval Natural Diamond Prices
4.5 Carat Cushion Natural Diamond Prices
4.5 Carat Radiant Natural Diamond Prices
4.5 Carat Asscher Natural Diamond Prices
Tracking Natural inventory for 4.5 carat Round diamonds.