0.5 Carat Round Lab Grown Diamond Prices Comparison
As of July 2026, 0.5 carat round lab grown diamonds usually range from $85 to $1,383, with an average price of $359.In the last month, prices for these diamonds are down 0.9%.Compare 18,999 verified listings across 9 retailers tracked by CaratRadar.
0.5 Carat Round Lab Grown Diamond Market Overview
CaratRadar currently tracks 18,999 verified 0.5-carat round lab grown diamonds listed across 9 online retailers. Prices in this segment range from $85 to $1,383, with an average asking price of $359 and a median of $341.
The price spread of $1,298 (93.9% 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.
18,999 diamonds tracked in this segment
Price range: $85 to $1,383
Average price: $359
Median price: $341
Available across 9 retailers
Savings potential: up to 93.9%
Price Range Overview
As of Jul 13, 2026Real market range for this carat, shape, and diamond type.
18,999
$85
$359
$341
$1,383
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 27.1%IGI | 0.54ct | Round | D | SI1 | Ideal
From $94
Compare at $129
Save 77.9%IGI | 0.54ct | Round | D | VS1 | Very Good
From $95
Compare at $430
Save 75.5%IGI | 0.53ct | Round | D | VS1 | Ideal
From $95
Compare at $387
Save 69.4%IGI | 0.52ct | Round | D | VS1 | Excellent
From $95
Compare at $310
Save 68.9%IGI | 0.51ct | Round | D | VS2 | Ideal
From $95
Compare at $305
Save 76.8%IGI | 0.52ct | Round | E | VS2 | Very Good
From $95
Compare at $410
Save 75.5%IGI | 0.53ct | Round | D | VS1 | Ideal
From $95
Compare at $387
Save 78.4%IGI | 0.5ct | Round | D | SI1 | Ideal
From $95
Compare at $440
Save 67.7%IGI | 0.55ct | Round | D | VVS2 | Ideal
From $96
Compare at $297
Save 74.3%IGI | 0.55ct | Round | D | VVS2 | Ideal
From $96
Compare at $373
Save 67.7%IGI | 0.55ct | Round | D | VVS2 | Ideal
From $96
Compare at $297
Save 67.7%IGI | 0.55ct | Round | D | VVS2 | Ideal
From $96
Compare at $297
Save 67.7%IGI | 0.55ct | Round | D | VVS2 | Ideal
From $96
Compare at $297
Save 67.7%IGI | 0.55ct | Round | D | VVS2 | Ideal
From $96
Compare at $297
Save 67.7%IGI | 0.55ct | Round | D | VVS2 | Ideal
From $96
Compare at $297
Save 62.6%IGI | 0.52ct | Round | E | VS1 | Ideal
From $96
Compare at $257
Save 67.7%IGI | 0.55ct | Round | D | VVS2 | Ideal
From $96
Compare at $297
Save 67.7%IGI | 0.55ct | Round | D | VVS2 | Ideal
From $96
Compare at $297
Save 67.7%IGI | 0.55ct | Round | D | VVS2 | Ideal
From $96
Compare at $297
Save 79.1%IGI | 0.5ct | Round | D | VS2 | Ideal
From $96
Compare at $460
Save 77.1%IGI | 0.51ct | Round | E | VS1 | Ideal
From $96
Compare at $420
Save 79.8%IGI | 0.54ct | Round | D | VS1 | Good
From $97
Compare at $480
Save 74.3%IGI | 0.56ct | Round | D | VVS2 | Ideal
From $97
Compare at $377
Save 67.9%IGI | 0.56ct | Round | D | VVS2 | Ideal
From $97
Compare at $302
IGI | 0.56ct | Round | D | VVS2 | Ideal
From $97
Compare at $302
Save 75.1%IGI | 0.5ct | Round | E | VS1 | Good
From $97
Compare at $390
Save 75.8%IGI | 0.5ct | Round | D | VS1 | Good
From $97
Compare at $400
Save 75.8%IGI | 0.5ct | Round | D | VS1 | Good
From $97
Compare at $400
Save 67.9%IGI | 0.56ct | Round | D | VVS2 | Ideal
From $97
Compare at $302
Save 67.9%IGI | 0.56ct | Round | D | VVS2 | Ideal
From $97
Compare at $302
Save 67.9%IGI | 0.56ct | Round | D | VVS2 | Ideal
From $97
Compare at $302
Save 67.9%IGI | 0.56ct | Round | D | VVS2 | Ideal
From $97
Compare at $302
Save 67.9%IGI | 0.56ct | Round | D | VVS2 | Ideal
From $97
Compare at $302
Save 68.8%IGI | 0.52ct | Round | D | VS2 | Excellent
From $97
Compare at $311
Save 68.6%IGI | 0.51ct | Round | E | VS2 | Ideal
From $97
Compare at $309
Save 77.4%IGI | 0.51ct | Round | D | VS2 | Ideal
From $97
Compare at $430
Save 79.8%IGI | 0.57ct | Round | D | SI1 | Ideal
From $97
Compare at $480
Save 76.9%IGI | 0.5ct | Round | D | VS2 | Very Good
From $97
Compare at $420
Save 27.9%IGI | 0.52ct | Round | D | VS1 | Excellent
From $98
Compare at $136
Save 76.7%IGI | 0.55ct | Round | D | VS2 | Very Good
From $98
Compare at $420
Save 75.5%IGI | 0.51ct | Round | F | VS2 | Very Good
From $98
Compare at $400
Save 75.5%IGI | 0.5ct | Round | D | VS1 | Very Good
From $98
Compare at $400
Save 76.1%IGI | 0.53ct | Round | E | VS1 | Very Good
From $98
Compare at $410
Save 78.7%IGI | 0.51ct | Round | D | VS2 | Excellent
From $98
Compare at $460
Save 79.6%IGI | 0.5ct | Round | D | VS1 | Excellent
From $98
Compare at $480
Save 79.6%IGI | 0.5ct | Round | D | VS1 | Ideal
From $98
Compare at $480
Save 78.2%IGI | 0.52ct | Round | D | SI1 | Ideal
From $98
Compare at $450
Save 27.4%IGI | 0.5ct | Round | D | VS1 | Ideal
From $98
Compare at $135
Save 27.4%IGI | 0.5ct | Round | D | VS1 | Ideal
From $98
Compare at $135
Save 27.4%IGI | 0.5ct | Round | D | VS1 | Ideal
From $98
Compare at $135
Entry pricing in this category starts around $85.
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 $1,298 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 $341 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 18,999 comparable stones in this segment. Prices start around $85 and go up to $1,383.
Based on the latest market data, the average asking price is about $359 with a median around $341.
The observed spread is roughly $1,298 across tracked listings, which is about 93.9% 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 $359. The median price is $341, 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 $1,298 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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