4.5 Carat Radiant Natural Diamond Prices Comparison
As of February 2026, 4.5 carat radiant natural diamonds usually range from $1,044 to $126,141, with an average price of $48,502.In the last month, prices for these diamonds are down 3.5%.Compare 15 verified listings across 6 retailers tracked by CaratRadar.
4.5 Carat Radiant Natural Diamond Market Overview
CaratRadar currently tracks 15 verified 4.5-carat radiant natural diamonds listed across 6 online retailers. Prices in this segment range from $1,044 to $126,141, with an average asking price of $48,502 and a median of $45,914.
The price spread of $125,097 (99.2% 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.
15 diamonds tracked in this segment
Price range: $1,044 to $126,141
Average price: $48,502
Median price: $45,914
Available across 6 retailers
Savings potential: up to 99.2%
Price Range Overview
As of Feb 28, 2026Real market range for this carat, shape, and diamond type.
15
$1,044
$48,502
$45,914
$126,141
Price History
Price Comparison Matrix
Live Listings
See all listingsCompare current retailer offers for this exact segment and open any listing for full details.
GIASave 12.8%4.5ct | Radiant | D | VS2 | Excellent
From $126,141
Compare at $144,681
IGISave 45.9%4.5ct | Radiant | E | VVS2 | Very Good
From $1,585
Compare at $2,932
4.5ct | Radiant | H | VS2 | Excellent
From $103,931
Compare at $126,790
GIASave 12.3%4.5ct | Radiant | E | SI1 | Ideal
From $107,875
Compare at $122,962
4.5ct | Radiant | I | SI1 | Very Good
From $58,230
Compare at $65,610
GIA4.51ct | Radiant | K | VS1 | Ideal
From $45,914
Compare at $49,443
GIASave 80%4.51ct | Radiant | E | VS2 | Excellent
From $2,146
Compare at $10,740
IGISave 80.6%4.52ct | Radiant | E | VS2 | Very Good
From $1,046
Compare at $5,380
GIA4.52ct | Radiant | J | VS1 | Excellent
From $77,555
Compare at $80,827
4.52ct | Radiant | F | SI1 | Excellent
From $100,480
Compare at $122,582
IGISave 72.3%4.52ct | Radiant | FANCY | VS2 | Ideal
From $1,246
Compare at $4,504
GIASave 10.4%4.53ct | Radiant | K | SI1 | Excellent
From $40,676
Compare at $45,400
GIASave 16.2%4.53ct | Radiant | J | SI1 | Ideal
From $55,824
Compare at $66,647
IGISave 70.9%4.54ct | Radiant | F | VS1 | Very Good
From $1,044
Compare at $3,585
IGISave 49.3%4.54ct | Radiant | FANCY | VS1 | Very Good
From $3,835
Compare at $7,563
Entry pricing in this category starts around $1,044.
What to Know When Shopping for 4.5 Carat Radiant Natural Diamonds
- Always compare identical certified diamonds across retailers. Identical certificate numbers can have price differences of $125,097 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 $45,914 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.
- Radiant cuts combine the elegance of emerald shapes with the brilliance of round cuts, offering good value per carat.
Frequently Asked Questions
We currently track 15 comparable stones in this segment. Prices start around $1,044 and go up to $126,141.
Based on the latest market data, the average asking price is about $48,502 with a median around $45,914.
The observed spread is roughly $125,097 across tracked listings, which is about 99.2% 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 $45,914, 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 $125,097 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 Radiant diamonds.