3.5 Carat Round Lab Grown Diamond Prices Comparison
As of April 2026, 3.5 carat round lab grown diamonds usually range from $575 to $19,761, with an average price of $2,990.In the last month, prices for these diamonds are down 2%.Compare 5,872 verified listings across 12 retailers tracked by CaratRadar.
3.5 Carat Round Lab Grown Diamond Market Overview
CaratRadar currently tracks 5,872 verified 3.5-carat round lab grown diamonds listed across 12 online retailers. Prices in this segment range from $575 to $19,761, with an average asking price of $2,990 and a median of $2,261.
The price spread of $19,186 (97.1% 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.
5,872 diamonds tracked in this segment
Price range: $575 to $19,761
Average price: $2,990
Median price: $2,261
Available across 12 retailers
Savings potential: up to 97.1%
Price Range Overview
As of Apr 14, 2026Real market range for this carat, shape, and diamond type.
5,872
$575
$2,990
$2,261
$19,761
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 78.4%GCAL | 3.5ct | Round | D | FL | Excellent
From $8,905
Compare at $41,290
Save 64.3%GCAL | 3.5ct | Round | E | VS1 | Ideal
From $3,442
Compare at $9,630
Save 63.9%GCAL | 3.5ct | Round | E | VVS2 | Ideal
From $3,818
Compare at $10,580
Save 74.4%GCAL | 3.5ct | Round | D | IF | Excellent
From $4,644
Compare at $18,110
Save 73.5%GIA | 3.5ct | Round | E | VS1 | Excellent
From $4,404
Compare at $16,640
Save 73.5%GIA | 3.5ct | Round | D | VVS1 | Excellent
From $3,436
Compare at $12,950
Save 25.3%GIA | 3.5ct | Round | D | VS1 | Excellent
From $7,552
Compare at $10,110
Save 48.6%GIA | 3.5ct | Round | D | VVS2 | Excellent
From $2,966
Compare at $5,770
Save 56.4%GIA | 3.5ct | Round | D | VVS2 | Ideal
From $7,000
Compare at $16,040
Save 45.3%GIA | 3.5ct | Round | F | VVS2 | Excellent
From $3,156
Compare at $5,771
Save 70.5%GIA | 3.5ct | Round | D | VS2 | Ideal
From $3,155
Compare at $10,710
Save 52.7%GIA | 3.5ct | Round | F | IF | Excellent
From $11,260
Compare at $23,820
Save 78.4%GIA | 3.5ct | Round | G | VS1 | Ideal
From $1,801
Compare at $8,340
Save 65%GIA | 3.5ct | Round | D | VVS1 | Excellent
From $4,686
Compare at $13,380
Save 73.5%GIA | 3.5ct | Round | D | VVS1 | Excellent
From $3,436
Compare at $12,950
Save 76.3%GIA | 3.5ct | Round | D | IF | Excellent
From $6,989
Compare at $29,460
Save 60.9%GIA | 3.5ct | Round | D | VVS1 | Excellent
From $2,765
Compare at $7,080
Save 29%GIA | 3.5ct | Round | D | VVS1 | Excellent
From $9,501
Compare at $13,380
Save 72.5%GIA | 3.5ct | Round | D | FL | Excellent
From $21,210
Compare at $77,000
Save 73.5%GIA | 3.5ct | Round | E | VS1 | Excellent
From $4,404
Compare at $16,640
GIA | 3.5ct | Round | F | VS2 | Excellent
From $6,050
Save 75.1%GIA | 3.5ct | Round | D | VVS1 | Excellent
From $3,310
Compare at $13,280
Save 56.7%GIA | 3.5ct | Round | G | VS1 | Excellent
From $3,990
Compare at $9,220
Save 52.5%GIA | 3.5ct | Round | G | VVS2 | Excellent
From $4,200
Compare at $8,850
Save 73.5%GIA | 3.5ct | Round | E | VS1 | Ideal
From $2,140
Compare at $8,080
Save 72.3%GIA | 3.5ct | Round | D | VVS2 | Excellent
From $2,851
Compare at $10,300
Save 73.1%GIA | 3.5ct | Round | D | VVS1 | Excellent
From $3,547
Compare at $13,200
Save 82.7%GIA | 3.5ct | Round | D | VVS2 | Ideal
From $4,655
Compare at $26,930
Save 57.8%GIA | 3.5ct | Round | D | VVS2 | Excellent
From $3,115
Compare at $7,380
Save 73.5%GIA | 3.5ct | Round | D | VVS1 | Excellent
From $3,436
Compare at $12,950
Save 75.1%GIA | 3.5ct | Round | D | VVS1 | Excellent
From $3,310
Compare at $13,280
Save 23.6%GIA | 3.5ct | Round | D | VVS2 | Excellent
From $4,655
Compare at $6,094
Save 62%GIA | 3.5ct | Round | D | VVS2 | Excellent
From $2,591
Compare at $6,825
Save 58.2%GIA | 3.5ct | Round | D | VVS2 | Excellent
From $4,655
Compare at $11,140
Save 62%GIA | 3.5ct | Round | D | VVS2 | Excellent
From $2,591
Compare at $6,825
Save 75.1%GIA | 3.5ct | Round | D | VVS1 | Excellent
From $3,310
Compare at $13,280
Save 52.3%GIA | 3.5ct | Round | D | IF | Excellent
From $11,700
Compare at $24,544
Save 77.2%GIA | 3.5ct | Round | D | IF | Excellent
From $6,720
Compare at $29,460
Save 78.7%GIA | 3.5ct | Round | E | VS2 | Excellent
From $2,137
Compare at $10,020
Save 50.5%GIA | 3.5ct | Round | D | FL | Excellent
From $14,531
Compare at $29,364
Save 52.5%GIA | 3.5ct | Round | D | VVS1 | Excellent
From $6,355
Compare at $13,380
Save 41.8%IGI | 3.5ct | Round | G | SI1 | Ideal
From $12,646
Compare at $21,729
Save 42.8%IGI | 3.5ct | Round | F | VS2 | Ideal
From $16,823
Compare at $29,393
Save 68%IGI | 3.5ct | Round | J | VS2 | Ideal
From $1,100
Compare at $3,436
Save 67.2%IGI | 3.5ct | Round | H | VVS1 | Ideal
From $1,887
Compare at $5,750
Save 54.1%IGI | 3.5ct | Round | F | SI1 | Excellent
From $1,492
Compare at $3,249
Save 67.2%IGI | 3.5ct | Round | H | VVS1 | Ideal
From $1,887
Compare at $5,750
Save 42.8%IGI | 3.5ct | Round | F | VS2 | Ideal
From $16,823
Compare at $29,393
Save 42.8%IGI | 3.5ct | Round | F | VS2 | Ideal
From $16,823
Compare at $29,393
Save 73%IGI | 3.5ct | Round | E | IF | Ideal
From $4,047
Compare at $14,990
Entry pricing in this category starts around $575.
What to Know When Shopping for 3.5 Carat Round Lab Grown Diamonds
- Always compare identical certified diamonds across retailers. Identical certificate numbers can have price differences of $19,186 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 $2,261 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 5,872 comparable stones in this segment. Prices start around $575 and go up to $19,761.
Based on the latest market data, the average asking price is about $2,990 with a median around $2,261.
The observed spread is roughly $19,186 across tracked listings, which is about 97.1% 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 $2,261, 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 12 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 $19,186 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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