4.5 Carat Round Natural Diamond Prices Comparison
As of February 2026, 4.5 carat round natural diamonds usually range from $933 to $231,177, with an average price of $68,467.In the last month, prices for these diamonds are down 4.5%.Compare 99 verified listings across 6 retailers tracked by CaratRadar.
4.5 Carat Round Natural Diamond Market Overview
CaratRadar currently tracks 99 verified 4.5-carat round natural diamonds listed across 6 online retailers. Prices in this segment range from $933 to $231,177, with an average asking price of $68,467 and a median of $65,993.
The price spread of $230,244 (99.6% 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.
99 diamonds tracked in this segment
Price range: $933 to $231,177
Average price: $68,467
Median price: $65,993
Available across 6 retailers
Savings potential: up to 99.6%
Price Range Overview
As of Feb 28, 2026Real market range for this carat, shape, and diamond type.
99
$933
$68,467
$65,993
$231,177
Price History
Price Comparison Matrix
Live Listings
See all listingsCompare current retailer offers for this exact segment and open any listing for full details.
GIA4.46ct | Round | K | SI1 | Very Good
From $56,182
Compare at $58,909
GIASave 20.7%4.48ct | Round | E | VS2 | Ideal
From $115,394
Compare at $145,540
IGISave 77.2%4.49ct | Round | E | VVS2 | Ideal
From $1,126
Compare at $4,935
GIA4.5ct | Round | G | SI2 | Ideal
From $68,496
Compare at $72,900
GIASave 13.4%4.5ct | Round | E | VVS2 | Ideal
From $160,400
Compare at $185,205
GIASave 13.9%4.5ct | Round | I | VS2 | Ideal
From $60,858
Compare at $70,657
GIASave 13.8%4.5ct | Round | H | VS1 | Excellent
From $99,231
Compare at $115,164
GIASave 14.5%4.5ct | Round | J | SI2 | Excellent
From $50,715
Compare at $59,347
GIASave 16.7%4.5ct | Round | E | SI2 | Ideal
From $61,670
Compare at $74,056
GIASave 22.7%4.5ct | Round | D | VS1 | Excellent
From $136,479
Compare at $176,669
GIASave 11.8%4.5ct | Round | G | VS1 | Excellent
From $121,095
Compare at $137,270
GIASave 11.8%4.5ct | Round | E | VS2 | Excellent
From $123,113
Compare at $139,557
GIA4.5ct | Round | G | VVS1 | Excellent
From $150,132
Compare at $151,342
GIASave 19.4%4.5ct | Round | H | VS1 | Excellent
From $94,370
Compare at $117,030
4.5ct | Round | D | VVS2 | Excellent
From $231,177
Compare at $257,321
GIA4.5ct | Round | H | VVS2 | Excellent
From $110,032
Compare at $113,513
4.5ct | Round | I | SI1 | Excellent
From $76,048
Compare at $91,788
GIA4.5ct | Round | G | VVS2 | Ideal
From $74,840
Compare at $80,878
GIA4.5ct | Round | J | VS2 | Ideal
From $57,572
Compare at $63,720
GIA4.5ct | Round | K | VS1 | Ideal
From $48,686
Compare at $50,752
GIASave 22%4.5ct | Round | K | SI2 | Excellent
From $41,958
Compare at $53,798
IGISave 87.7%4.5ct | Round | E | VVS2 | Ideal
From $1,573
Compare at $12,750
IGI4.5ct | Round | H | SI1 | Ideal
From $54,340
Compare at $57,121
GIASave 39.2%4.5ct | Round | I | SI1 | Excellent
From $65,993
Compare at $108,594
GIASave 12.5%4.5ct | Round | J | SI1 | Ideal
From $47,884
Compare at $54,746
GIASave 15%4.5ct | Round | K | SI2 | Excellent
From $45,738
Compare at $53,798
GIASave 15.1%4.5ct | Round | F | VS1 | Ideal
From $117,980
Compare at $138,921
GIA4.5ct | Round | D | VVS2 | Ideal
From $176,981
Compare at $178,430
GIA4.5ct | Round | K | VS1 | Excellent
From $81,011
Compare at $85,472
GIA4.5ct | Round | H | VVS2 | Excellent
From $92,529
Compare at $97,449
GIASave 57.5%4.5ct | Round | L | SI1 | Ideal
From $29,775
Compare at $70,025
GIA4.5ct | Round | J | SI2 | Ideal
From $48,270
Compare at $51,670
GIA4.5ct | Round | H | VS1 | Excellent
From $105,819
Compare at $108,081
GIA4.5ct | Round | I | VS1 | Excellent
From $76,629
Compare at $78,760
GIASave 25.5%4.5ct | Round | I | SI2 | Excellent
From $49,151
Compare at $65,980
GIA4.5ct | Round | J | SI2 | Excellent
From $34,871
Compare at $38,176
GIA4.5ct | Round | G | VS1 | Excellent
From $119,447
Compare at $123,237
GIASave 15.8%4.5ct | Round | J | VS1 | Excellent
From $69,039
Compare at $82,013
GIASave 13.9%4.51ct | Round | I | SI1 | Excellent
From $65,039
Compare at $75,506
GIASave 10.3%4.51ct | Round | J | SI2 | Ideal
From $50,991
Compare at $56,826
IGISave 70%4.51ct | Round | F | VS1 | Ideal
From $1,068
Compare at $3,560
4.51ct | Round | F | SI2 | Excellent
From $83,109
Compare at $100,303
GIASave 16.9%4.51ct | Round | I | VS1 | Ideal
From $70,210
Compare at $84,469
GIA4.51ct | Round | I | SI1 | Excellent
From $66,600
Compare at $71,753
GIASave 21.9%4.51ct | Round | K | VS2 | Excellent
From $45,864
Compare at $58,720
GIASave 18.2%4.51ct | Round | I | SI1 | Excellent
From $70,481
Compare at $86,118
GIASave 24.3%4.51ct | Round | K | SI1 | Excellent
From $44,830
Compare at $59,239
GIASave 13.8%4.51ct | Round | E | SI1 | Excellent
From $96,392
Compare at $111,871
GIASave 11.8%4.51ct | Round | F | VS1 | Excellent
From $138,221
Compare at $156,673
GIA4.51ct | Round | J | VS2 | Very Good
From $81,883
Compare at $86,292
Entry pricing in this category starts around $933.
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 $230,244 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 $65,993 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 99 comparable stones in this segment. Prices start around $933 and go up to $231,177.
Based on the latest market data, the average asking price is about $68,467 with a median around $65,993.
The observed spread is roughly $230,244 across tracked listings, which is about 99.6% 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 $65,993, 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 6 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 $230,244 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 4.5 carat Round diamonds.