0.5 Carat Round Lab Grown Diamond Prices Comparison
As of February 2026, 0.5 carat round lab grown diamonds usually range from $155 to $2,942, with an average price of $274.In the last month, prices for these diamonds are down 2.8%.Compare 18,816 verified listings across 8 retailers tracked by CaratRadar.
0.5 Carat Round Lab Grown Diamond Market Overview
CaratRadar currently tracks 18,816 verified 0.5-carat round lab grown diamonds listed across 8 online retailers. Prices in this segment range from $155 to $2,942, with an average asking price of $274 and a median of $256.
The price spread of $2,787 (94.7% 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.
18,816 diamonds tracked in this segment
Price range: $155 to $2,942
Average price: $274
Median price: $256
Available across 8 retailers
Savings potential: up to 94.7%
Price Range Overview
As of Feb 28, 2026Real market range for this carat, shape, and diamond type.
18,816
$155
$274
$256
$2,942
Price History
Price Comparison Matrix
Live Listings
See all listingsCompare current retailer offers for this exact segment and open any listing for full details.
IGISave 64.3%0.46ct | Round | D | SI2 | Ideal
From $550
Compare at $1,540
IGISave 66.4%0.46ct | Round | D | VS2 | Ideal
From $620
Compare at $1,847
IGISave 65.3%0.46ct | Round | D | SI1 | Ideal
From $590
Compare at $1,701
IGISave 65.3%0.46ct | Round | D | SI1 | Ideal
From $590
Compare at $1,701
IGISave 73.4%0.46ct | Round | D | SI1 | Ideal
From $207
Compare at $780
IGISave 53.3%0.46ct | Round | D | VS1 | Excellent
From $196
Compare at $420
IGISave 59%0.46ct | Round | D | VS2 | Ideal
From $276
Compare at $673
IGISave 60.5%0.46ct | Round | E | VVS2 | Excellent
From $267
Compare at $676
IGISave 68.5%0.46ct | Round | D | VS1 | Ideal
From $267
Compare at $847
IGISave 60.5%0.46ct | Round | D | VS1 | Ideal
From $267
Compare at $676
IGISave 60.7%0.46ct | Round | D | VVS2 | Excellent
From $261
Compare at $666
IGISave 64.3%0.46ct | Round | E | SI2 | Ideal
From $530
Compare at $1,484
IGISave 64.3%0.46ct | Round | F | SI1 | Very Good
From $550
Compare at $1,540
IGISave 65.3%0.46ct | Round | D | SI1 | Ideal
From $590
Compare at $1,701
IGISave 64.8%0.46ct | Round | E | SI1 | Very Good
From $570
Compare at $1,620
IGISave 67.2%0.46ct | Round | D | VVS2 | Ideal
From $710
Compare at $2,166
IGISave 65.3%0.46ct | Round | D | SI1 | Ideal
From $590
Compare at $1,701
IGISave 65.3%0.46ct | Round | D | SI1 | Ideal
From $590
Compare at $1,701
IGISave 64.3%0.46ct | Round | E | SI2 | Ideal
From $530
Compare at $1,484
IGISave 61.2%0.46ct | Round | D | SI1 | Ideal
From $590
Compare at $1,522
IGISave 65.5%0.46ct | Round | E | VS2 | Ideal
From $610
Compare at $1,767
IGISave 68.6%0.46ct | Round | D | VS2 | Excellent
From $261
Compare at $834
IGISave 53.3%0.46ct | Round | D | VS1 | Excellent
From $196
Compare at $420
IGISave 53.3%0.46ct | Round | D | VS1 | Excellent
From $196
Compare at $420
IGISave 41.9%0.46ct | Round | E | VVS2 | Ideal
From $219
Compare at $376
IGISave 61.1%0.46ct | Round | D | VVS2 | Ideal
From $230
Compare at $592
IGISave 59.2%0.46ct | Round | D | VS1 | Very Good
From $271
Compare at $664
IGISave 54.5%0.46ct | Round | D | VS2 | Ideal
From $257
Compare at $566
IGISave 48.5%0.46ct | Round | D | VVS2 | Very Good
From $219
Compare at $425
IGISave 46.8%0.46ct | Round | E | SI1 | Ideal
From $210
Compare at $395
IGI0.46ct | Round | D | VS2 | Ideal
From $232
Compare at $252
IGISave 35.2%0.46ct | Round | D | VS1 | Ideal
From $228
Compare at $352
IGISave 49.3%0.46ct | Round | D | VS2 | Ideal
From $221
Compare at $435
IGISave 54.2%0.46ct | Round | D | VVS2 | Very Good
From $264
Compare at $577
IGISave 68.6%0.46ct | Round | D | VVS2 | Excellent
From $261
Compare at $834
IGISave 41%0.46ct | Round | D | VS1 | Ideal
From $242
Compare at $410
IGISave 68.6%0.46ct | Round | D | VVS2 | Excellent
From $261
Compare at $834
IGISave 68.6%0.46ct | Round | D | VVS2 | Excellent
From $261
Compare at $834
IGISave 43.2%0.46ct | Round | D | VS1 | Ideal
From $238
Compare at $419
IGISave 42.7%0.46ct | Round | D | VVS1 | Ideal
From $270
Compare at $471
IGI0.46ct | Round | D | VVS2 | Very Good
From $276
Compare at $298
IGISave 43.1%0.46ct | Round | E | VVS2 | Ideal
From $240
Compare at $422
IGISave 42.7%0.46ct | Round | D | VVS1 | Ideal
From $270
Compare at $471
IGISave 43.2%0.46ct | Round | D | VVS2 | Ideal
From $238
Compare at $419
IGISave 42.7%0.46ct | Round | D | VVS1 | Ideal
From $270
Compare at $471
IGISave 38.3%0.46ct | Round | D | IF | Excellent
From $395
Compare at $640
IGISave 37.6%0.46ct | Round | E | VS1 | Very Good
From $204
Compare at $327
IGISave 35.2%0.46ct | Round | D | VS1 | Ideal
From $228
Compare at $352
IGI0.46ct | Round | D | VS1 | Very Good
From $254
Compare at $276
IGISave 50.4%0.46ct | Round | D | VS2 | Ideal
From $221
Compare at $445
Entry pricing in this category starts around $155.
What to Know When Shopping for 0.5 Carat Round Lab Grown Diamonds
- Always compare identical certified diamonds across retailers. Identical certificate numbers can have price differences of $2,787 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 $256 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.
- Lab-grown diamonds offer excellent value. Ensure the stone comes with a GIA or IGI certificate confirming it is laboratory-grown.
- 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 18,816 comparable stones in this segment. Prices start around $155 and go up to $2,942.
Based on the latest market data, the average asking price is about $274 with a median around $256.
The observed spread is roughly $2,787 across tracked listings, which is about 94.7% 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 $256, 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 8 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 $2,787 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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