0.5 Carat Round Natural Diamond Prices Comparison
As of May 2026, 0.5 carat round natural diamonds usually range from $192 to $2,700, with an average price of $1,046.In the last month, prices for these diamonds are down 0.4%.Compare 28,613 verified listings across 9 retailers tracked by CaratRadar.
0.5 Carat Round Natural Diamond Market Overview
CaratRadar currently tracks 28,613 verified 0.5-carat round natural diamonds listed across 9 online retailers. Prices in this segment range from $192 to $2,700, with an average asking price of $1,046 and a median of $980.
The price spread of $2,508 (92.9% 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.
28,613 diamonds tracked in this segment
Price range: $192 to $2,700
Average price: $1,046
Median price: $980
Available across 9 retailers
Savings potential: up to 92.9%
Price Range Overview
As of May 29, 2026Real market range for this carat, shape, and diamond type.
28,613
$192
$1,046
$980
$2,700
Price History
Price Comparison Matrix
Live Listings
See all listingsCompare current retailer offers for this exact segment and open any listing for full details.
Save 28.4%GIA | 0.5ct | Round | L | SI2 | Good
From $275
Compare at $384
Save 28.8%GIA | 0.5ct | Round | L | SI2 | Excellent
From $314
Compare at $441
IGI | 0.5ct | Round | K | SI1 | Excellent
From $330
Compare at $340
Save 23.5%GIA | 0.5ct | Round | L | VS2 | Very Good
From $330
Compare at $431
Save 23.4%GIA | 0.53ct | Round | L | SI1 | Excellent
From $337
Compare at $440
IGI | 0.5ct | Round | K | SI1 | Excellent
From $344
Compare at $350
Save 23.5%GIA | 0.59ct | Round | L | SI1 | Very Good
From $350
Compare at $458
Save 21.5%GIA | 0.5ct | Round | L | VS1 | Very Good
From $353
Compare at $449
IGI | 0.5ct | Round | K | VS2 | Very Good
From $353
Compare at $355
IGI | 0.51ct | Round | K | SI1 | Good
From $355
Compare at $391
Save 11%GIA | 0.5ct | Round | K | SI2 | Ideal
From $356
Compare at $400
Save 22.7%GIA | 0.5ct | Round | L | SI2 | Ideal
From $356
Compare at $461
Save 33.3%GIA | 0.5ct | Round | J | SI2 | Ideal
From $357
Compare at $535
Save 31.3%GIA | 0.5ct | Round | J | SI2 | Ideal
From $357
Compare at $520
Save 29.9%GIA | 0.5ct | Round | K | SI2 | Very Good
From $358
Compare at $511
Save 20.2%GIA | 0.5ct | Round | J | SI2 | Excellent
From $361
Compare at $453
IGI | 0.5ct | Round | K | SI1 | Excellent
From $362
Compare at $366
Save 13.5%IGI | 0.5ct | Round | K | SI1 | Excellent
From $365
Compare at $422
IGI | 0.5ct | Round | K | VS1 | Excellent
From $365
Compare at $399
IGI | 0.5ct | Round | K | VS1 | Excellent
From $365
Compare at $399
IGI | 0.5ct | Round | K | VS1 | Excellent
From $365
Compare at $405
Save 26.5%GIA | 0.5ct | Round | L | SI2 | Excellent
From $370
Compare at $503
Save 28%GIA | 0.5ct | Round | L | SI2 | Excellent
From $370
Compare at $514
Save 27.6%GIA | 0.5ct | Round | L | VS2 | Very Good
From $370
Compare at $511
Save 10.2%IGI | 0.5ct | Round | K | SI1 | Very Good
From $370
Compare at $412
IGI | 0.51ct | Round | K | VS2 | Excellent
From $370
Compare at $400
Save 13.2%IGI | 0.5ct | Round | K | SI1 | Excellent
From $370
Compare at $426
IGI | 0.5ct | Round | K | VS1 | Ideal
From $370
Compare at $405
IGI | 0.53ct | Round | K | VS2 | Excellent
From $370
Compare at $401
IGI | 0.5ct | Round | K | VS1 | Excellent
From $370
Compare at $405
Save 10.4%IGI | 0.5ct | Round | K | VS1 | Excellent
From $370
Compare at $413
IGI | 0.5ct | Round | K | VS1 | Excellent
From $370
Compare at $405
Save 31.1%GIA | 0.54ct | Round | K | SI2 | Ideal
From $371
Compare at $538
Save 26.3%IGI | 0.5ct | Round | K | SI1 | Excellent
From $372
Compare at $505
IGI | 0.5ct | Round | K | VS1 | Very Good
From $372
Compare at $386
IGI | 0.5ct | Round | K | SI1 | Ideal
From $372
Compare at $375
IGI | 0.5ct | Round | K | SI1 | Very Good
From $372
Compare at $375
IGI | 0.5ct | Round | K | SI1 | Ideal
From $372
Compare at $375
Save 23.4%GIA | 0.54ct | Round | L | SI1 | Ideal
From $374
Compare at $488
Save 27.4%GIA | 0.5ct | Round | K | SI1 | Ideal
From $374
Compare at $515
Save 30.2%GIA | 0.51ct | Round | K | SI2 | Excellent
From $375
Compare at $537
Save 27.6%GIA | 0.5ct | Round | L | VS1 | Very Good
From $375
Compare at $518
Save 13.2%IGI | 0.51ct | Round | K | SI1 | Excellent
From $375
Compare at $432
IGI | 0.51ct | Round | K | VS2 | Excellent
From $375
Compare at $381
Save 21.1%GIA | 0.5ct | Round | K | SI2 | Very Good
From $377
Compare at $478
Save 16.6%GIA | 0.51ct | Round | L | SI2 | Excellent
From $378
Compare at $453
IGI | 0.55ct | Round | K | SI1 | Very Good
From $380
Compare at $409
Save 13.5%IGI | 0.5ct | Round | K | SI1 | Excellent
From $380
Compare at $439
Save 15.9%IGI | 0.5ct | Round | K | VS2 | Very Good
From $380
Compare at $452
IGI | 0.5ct | Round | K | VS1 | Excellent
From $380
Compare at $402
Entry pricing in this category starts around $192.
What to Know When Shopping for 0.5 Carat Round Natural Diamonds
- Always compare identical certified diamonds across retailers. Identical certificate numbers can have price differences of $2,508 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 $980 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 28,613 comparable stones in this segment. Prices start around $192 and go up to $2,700.
Based on the latest market data, the average asking price is about $1,046 with a median around $980.
The observed spread is roughly $2,508 across tracked listings, which is about 92.9% 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 $1,046. The median price is $980, 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 $2,508 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 0.5 carat Round diamonds.