13 Carat Round Lab Grown Diamond Prices Comparison
As of March 2026, 13 carat round lab grown diamonds usually range from $4,794 to $22,820, with an average price of $9,720.In the last month, prices for these diamonds are down 1.7%.Compare 20 verified listings across 5 retailers tracked by CaratRadar.
13 Carat Round Lab Grown Diamond Market Overview
CaratRadar currently tracks 20 verified 13-carat round lab grown diamonds listed across 5 online retailers. Prices in this segment range from $4,794 to $22,820, with an average asking price of $9,720 and a median of $8,571.
The price spread of $18,026 (79.0% 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.
20 diamonds tracked in this segment
Price range: $4,794 to $22,820
Average price: $9,720
Median price: $8,571
Available across 5 retailers
Savings potential: up to 79.0%
Price Range Overview
As of Mar 1, 2026Real market range for this carat, shape, and diamond type.
20
$4,794
$9,720
$8,571
$22,820
Price History
Price Comparison Matrix
Live Listings
See all listingsCompare current retailer offers for this exact segment and open any listing for full details.
13ct | Round | G | VS1 | Ideal
From $10,229
Compare at $27,980
13ct | Round | F | SI1 | Ideal
From $4,794
Compare at $20,735
IGISave 22.7%13.01ct | Round | E | VS1 | Excellent
From $6,884
Compare at $8,902
IGISave 69.1%13.01ct | Round | E | VVS2 | Excellent
From $8,883
Compare at $28,735
IGISave 67%13.01ct | Round | F | VVS2 | Ideal
From $11,710
Compare at $35,500
IGISave 76.1%13.01ct | Round | E | VVS2 | Ideal
From $9,215
Compare at $38,560
IGISave 49.9%13.02ct | Round | F | VS2 | Ideal
From $13,990
Compare at $27,920
IGISave 77.9%13.02ct | Round | F | VVS2 | Ideal
From $13,164
Compare at $59,450
IGISave 78%13.02ct | Round | F | VS2 | Excellent
From $8,696
Compare at $39,590
IGISave 61.7%13.02ct | Round | F | VVS2 | Ideal
From $7,916
Compare at $20,648
IGISave 77.5%13.02ct | Round | E | VS1 | Excellent
From $7,596
Compare at $33,690
IGISave 76.3%13.03ct | Round | F | VS2 | Ideal
From $8,566
Compare at $36,219
IGISave 22.7%13.03ct | Round | E | VS1 | Excellent
From $6,894
Compare at $8,916
IGISave 72.6%13.03ct | Round | F | VS1 | Ideal
From $8,576
Compare at $31,290
IGISave 18.4%13.04ct | Round | F | VS2 | Ideal
From $22,820
Compare at $27,960
IGISave 58.9%13.04ct | Round | G | VS2 | Ideal
From $14,475
Compare at $35,180
IGISave 59.2%13.04ct | Round | G | VS1 | Ideal
From $7,025
Compare at $17,206
13.05ct | Round | F | SI1 | Ideal
From $7,488
Compare at $12,510
13.05ct | Round | F | VS1 | Ideal
From $7,862
Compare at $12,304
IGISave 77.5%13.05ct | Round | E | VS1 | Excellent
From $7,613
Compare at $33,770
Entry pricing in this category starts around $4,794.
What to Know When Shopping for 13 Carat Round Lab Grown Diamonds
- Always compare identical certified diamonds across retailers. Identical certificate numbers can have price differences of $18,026 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 $8,571 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 20 comparable stones in this segment. Prices start around $4,794 and go up to $22,820.
Based on the latest market data, the average asking price is about $9,720 with a median around $8,571.
The observed spread is roughly $18,026 across tracked listings, which is about 79.0% 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 $8,571, 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 5 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 $18,026 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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