0.5 Carat Cushion Lab Grown Diamond Prices Comparison
As of February 2026, 0.5 carat cushion lab grown diamonds usually range from $211 to $1,064, with an average price of $336.In the last month, prices for these diamonds are down 2.9%.Compare 578 verified listings across 4 retailers tracked by CaratRadar.
0.5 Carat Cushion Lab Grown Diamond Market Overview
CaratRadar currently tracks 578 verified 0.5-carat cushion lab grown diamonds listed across 4 online retailers. Prices in this segment range from $211 to $1,064, with an average asking price of $336 and a median of $312.
The price spread of $853 (80.2% 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.
578 diamonds tracked in this segment
Price range: $211 to $1,064
Average price: $336
Median price: $312
Available across 4 retailers
Savings potential: up to 80.2%
Price Range Overview
As of Feb 28, 2026Real market range for this carat, shape, and diamond type.
578
$211
$336
$312
$1,064
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 41.7%0.46ct | Cushion | D | VS1 | Ideal
From $286
Compare at $490
IGISave 59.8%0.46ct | Cushion | E | IF | Ideal
From $415
Compare at $1,032
IGISave 44.8%0.46ct | Cushion | D | VVS1 | Ideal
From $298
Compare at $540
IGISave 35.9%0.46ct | Cushion | D | VVS2 | Excellent
From $311
Compare at $485
IGISave 41.5%0.46ct | Cushion | D | VVS2 | Ideal
From $305
Compare at $521
IGISave 33.4%0.46ct | Cushion | D | VVS2 | Ideal
From $311
Compare at $467
IGISave 39.4%0.46ct | Cushion | D | VS2 | Ideal
From $288
Compare at $475
IGISave 42.9%0.46ct | Cushion | D | VS1 | Excellent
From $264
Compare at $462
IGISave 47.7%0.46ct | Cushion | E | VVS2 | Ideal
From $286
Compare at $546
IGISave 39.8%0.46ct | Cushion | D | VS1 | Ideal
From $292
Compare at $485
IGISave 37.2%0.46ct | Cushion | D | VS1 | Ideal
From $292
Compare at $465
IGISave 41.5%0.46ct | Cushion | E | VVS2 | Ideal
From $295
Compare at $505
IGISave 41.5%0.46ct | Cushion | D | VVS2 | Ideal
From $305
Compare at $521
IGISave 41.5%0.46ct | Cushion | D | VVS2 | Ideal
From $305
Compare at $521
IGISave 41.5%0.46ct | Cushion | D | VVS2 | Ideal
From $305
Compare at $521
IGISave 37.2%0.46ct | Cushion | D | VS1 | Ideal
From $292
Compare at $465
IGISave 44.8%0.46ct | Cushion | D | VVS1 | Ideal
From $298
Compare at $540
IGISave 41.5%0.46ct | Cushion | D | VS2 | Excellent
From $282
Compare at $482
IGISave 33.4%0.46ct | Cushion | D | VVS2 | Ideal
From $311
Compare at $467
IGISave 43.7%0.46ct | Cushion | D | VVS1 | Ideal
From $298
Compare at $530
IGISave 37.7%0.46ct | Cushion | D | VVS2 | Very Good
From $274
Compare at $440
IGISave 51.3%0.46ct | Cushion | D | VS1 | Ideal
From $315
Compare at $647
IGISave 33.4%0.46ct | Cushion | D | VVS2 | Ideal
From $311
Compare at $467
IGISave 46.6%0.46ct | Cushion | E | VVS1 | Very Good
From $278
Compare at $520
IGISave 41.4%0.46ct | Cushion | D | VVS1 | Ideal
From $298
Compare at $509
IGISave 39%0.46ct | Cushion | D | VVS2 | Ideal
From $311
Compare at $510
IGISave 33.4%0.46ct | Cushion | D | VVS2 | Excellent
From $311
Compare at $467
IGISave 33.4%0.46ct | Cushion | D | VVS2 | Very Good
From $311
Compare at $467
IGISave 59.9%0.46ct | Cushion | D | VVS2 | Good
From $267
Compare at $666
IGISave 52.3%0.46ct | Cushion | E | VS1 | Ideal
From $292
Compare at $612
IGISave 39%0.46ct | Cushion | D | VVS2 | Very Good
From $311
Compare at $510
IGI0.46ct | Cushion | E | VVS2 | Good
From $280
Compare at $298
IGISave 33.4%0.46ct | Cushion | D | VVS2 | Ideal
From $311
Compare at $467
IGISave 52.8%0.46ct | Cushion | E | VS1 | Ideal
From $280
Compare at $594
IGISave 33.4%0.46ct | Cushion | D | VVS2 | Ideal
From $311
Compare at $467
IGISave 39.4%0.46ct | Cushion | D | VS2 | Ideal
From $288
Compare at $475
IGISave 51.3%0.46ct | Cushion | D | VS1 | Ideal
From $315
Compare at $647
IGISave 39%0.46ct | Cushion | D | SI1 | Ideal
From $272
Compare at $446
IGISave 41.5%0.46ct | Cushion | D | VVS2 | Ideal
From $305
Compare at $521
IGISave 33.3%0.46ct | Cushion | E | VVS2 | Ideal
From $301
Compare at $452
IGISave 41.7%0.46ct | Cushion | D | VS1 | Ideal
From $286
Compare at $490
IGISave 41.5%0.46ct | Cushion | D | VVS2 | Ideal
From $305
Compare at $521
IGISave 33.4%0.46ct | Cushion | D | VVS2 | Ideal
From $311
Compare at $467
IGISave 41.5%0.46ct | Cushion | D | VS2 | Ideal
From $282
Compare at $482
IGISave 39.8%0.46ct | Cushion | D | VS1 | Ideal
From $292
Compare at $485
IGISave 43.7%0.46ct | Cushion | D | VVS1 | Ideal
From $298
Compare at $530
IGISave 33.4%0.46ct | Cushion | D | VS1 | Excellent
From $292
Compare at $438
IGISave 35.9%0.46ct | Cushion | D | VVS2 | Ideal
From $311
Compare at $485
IGISave 39%0.46ct | Cushion | D | VVS2 | Ideal
From $311
Compare at $510
IGISave 33.4%0.46ct | Cushion | D | VVS2 | Ideal
From $311
Compare at $467
Entry pricing in this category starts around $211.
What to Know When Shopping for 0.5 Carat Cushion Lab Grown Diamonds
- Always compare identical certified diamonds across retailers. Identical certificate numbers can have price differences of $853 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 $312 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.
- Cushion cuts come in standard and modified brilliant varieties. Modified brilliants tend to show more fire, while standard cushions have broader facets.
Frequently Asked Questions
We currently track 578 comparable stones in this segment. Prices start around $211 and go up to $1,064.
Based on the latest market data, the average asking price is about $336 with a median around $312.
The observed spread is roughly $853 across tracked listings, which is about 80.2% 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 $312, 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 $853 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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