0.5 Carat Radiant Natural Diamond Prices Comparison
As of February 2026, 0.5 carat radiant natural diamonds usually range from $485 to $2,676, with an average price of $972.In the last month, prices for these diamonds are down 1.8%.Compare 1,086 verified listings across 4 retailers tracked by CaratRadar.
0.5 Carat Radiant Natural Diamond Market Overview
CaratRadar currently tracks 1,086 verified 0.5-carat radiant natural diamonds listed across 4 online retailers. Prices in this segment range from $485 to $2,676, with an average asking price of $972 and a median of $891.
The price spread of $2,191 (81.9% 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.
1,086 diamonds tracked in this segment
Price range: $485 to $2,676
Average price: $972
Median price: $891
Available across 4 retailers
Savings potential: up to 81.9%
Price Range Overview
As of Feb 28, 2026Real market range for this carat, shape, and diamond type.
1,086
$485
$972
$891
$2,676
Price History
Price Comparison Matrix
Live Listings
See all listingsCompare current retailer offers for this exact segment and open any listing for full details.
GIA0.46ct | Radiant | H | SI2 | Excellent
From $606
Compare at $654
GIASave 34.6%0.46ct | Radiant | D | SI1 | Very Good
From $968
Compare at $1,481
GIASave 22.8%0.46ct | Radiant | F | VVS1 | Very Good
From $1,128
Compare at $1,461
GIA0.46ct | Radiant | I | SI2 | Very Good
From $702
Compare at $755
GIASave 38.2%0.46ct | Radiant | I | SI1 | Excellent
From $760
Compare at $1,230
GIASave 40.6%0.46ct | Radiant | E | SI1 | Very Good
From $733
Compare at $1,235
GIASave 37.3%0.46ct | Radiant | H | SI1 | Very Good
From $777
Compare at $1,239
GIASave 34.8%0.46ct | Radiant | F | SI1 | Excellent
From $887
Compare at $1,360
GIASave 30.1%0.46ct | Radiant | D | SI2 | Excellent
From $707
Compare at $1,012
GIASave 28%0.46ct | Radiant | E | IF | Excellent
From $989
Compare at $1,374
GIASave 28.2%0.46ct | Radiant | FANCY | VS1 | Good
From $2,077
Compare at $2,893
GIA0.46ct | Radiant | D | IF | Excellent
From $1,072
Compare at $1,117
GIASave 40.8%0.46ct | Radiant | G | VS2 | Good
From $702
Compare at $1,185
GIA0.46ct | Radiant | H | SI2 | Excellent
From $711
Compare at $763
GIASave 27.4%0.46ct | Radiant | FANCY | VS1 | Good
From $2,250
Compare at $3,101
GIA0.46ct | Radiant | D | VVS2 | Excellent
From $970
Compare at $1,011
GIASave 34.5%0.47ct | Radiant | D | VS1 | Excellent
From $1,059
Compare at $1,618
GIASave 41%0.47ct | Radiant | J | SI1 | Very Good
From $619
Compare at $1,048
GIASave 36.4%0.47ct | Radiant | G | VS2 | Very Good
From $874
Compare at $1,374
GIASave 36%0.47ct | Radiant | H | SI1 | Excellent
From $841
Compare at $1,314
GIASave 11%0.47ct | Radiant | G | SI2 | Excellent
From $621
Compare at $697
GIASave 28%0.47ct | Radiant | FANCY | VS1 | Good
From $2,122
Compare at $2,947
GIASave 11.9%0.47ct | Radiant | D | VVS1 | Excellent
From $913
Compare at $1,036
GIASave 14.8%0.47ct | Radiant | J | VVS2 | Very Good
From $563
Compare at $661
GIASave 11.3%0.47ct | Radiant | G | SI2 | Excellent
From $738
Compare at $832
GIASave 34.6%0.47ct | Radiant | F | VVS1 | Very Good
From $1,057
Compare at $1,615
GIASave 38.2%0.47ct | Radiant | D | VS2 | Excellent
From $812
Compare at $1,313
GIASave 32.1%0.48ct | Radiant | D | VS1 | Excellent
From $1,395
Compare at $2,054
GIASave 38.2%0.48ct | Radiant | G | VS2 | Excellent
From $741
Compare at $1,199
GIASave 34.2%0.48ct | Radiant | F | VS1 | Excellent
From $1,126
Compare at $1,711
GIA0.48ct | Radiant | H | SI2 | Excellent
From $672
Compare at $741
GIASave 17.4%0.49ct | Radiant | G | VVS1 | Excellent
From $743
Compare at $900
GIASave 10.9%0.49ct | Radiant | G | SI2 | Excellent
From $621
Compare at $697
GIASave 34.7%0.49ct | Radiant | G | VS1 | Excellent
From $963
Compare at $1,476
GIASave 39.4%0.49ct | Radiant | E | SI1 | Excellent
From $694
Compare at $1,144
GIASave 37.4%0.49ct | Radiant | G | SI1 | Very Good
From $771
Compare at $1,232
GIASave 22.2%0.49ct | Radiant | E | IF | Excellent
From $1,021
Compare at $1,312
GIASave 43.5%0.49ct | Radiant | E | VS2 | Excellent
From $959
Compare at $1,696
GIASave 35.2%0.5ct | Radiant | E | VVS1 | Ideal
From $939
Compare at $1,448
GIASave 23%0.5ct | Radiant | H | SI2 | Very Good
From $562
Compare at $730
GIASave 13%0.5ct | Radiant | H | VS1 | Very Good
From $715
Compare at $822
GIASave 51.7%0.5ct | Radiant | I | VS1 | Excellent
From $590
Compare at $1,221
GIA0.5ct | Radiant | G | SI2 | Very Good
From $620
Compare at $667
GIASave 12.3%0.5ct | Radiant | E | VS2 | Very Good
From $620
Compare at $707
GIASave 46.5%0.5ct | Radiant | I | VVS1 | Excellent
From $679
Compare at $1,270
GIASave 50.1%0.5ct | Radiant | J | SI1 | Excellent
From $517
Compare at $1,037
GIASave 14.3%0.5ct | Radiant | F | IF | Excellent
From $925
Compare at $1,080
GIASave 44.5%0.5ct | Radiant | H | VS2 | Excellent
From $734
Compare at $1,324
GIASave 52.8%0.5ct | Radiant | I | VS2 | Excellent
From $550
Compare at $1,166
GIA0.5ct | Radiant | H | VVS1 | Excellent
From $928
Compare at $1,019
Entry pricing in this category starts around $485.
What to Know When Shopping for 0.5 Carat Radiant Natural Diamonds
- Always compare identical certified diamonds across retailers. Identical certificate numbers can have price differences of $2,191 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 $891 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 1,086 comparable stones in this segment. Prices start around $485 and go up to $2,676.
Based on the latest market data, the average asking price is about $972 with a median around $891.
The observed spread is roughly $2,191 across tracked listings, which is about 81.9% 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 $891, 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 4 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 $2,191 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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