10.4 Carat Round Lab Grown Diamond Prices Comparison
As of March 2026, 10.4 carat round lab grown diamonds usually range from $3,344 to $25,620, with an average price of $9,138.In the last month, prices for these diamonds are down 3.5%.Compare 12 verified listings across 5 retailers tracked by CaratRadar.
10.4 Carat Round Lab Grown Diamond Market Overview
CaratRadar currently tracks 12 verified 10.4-carat round lab grown diamonds listed across 5 online retailers. Prices in this segment range from $3,344 to $25,620, with an average asking price of $9,138 and a median of $5,640.
The price spread of $22,275 (86.9% 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.
12 diamonds tracked in this segment
Price range: $3,344 to $25,620
Average price: $9,138
Median price: $5,640
Available across 5 retailers
Savings potential: up to 86.9%
Price Range Overview
As of Mar 1, 2026Real market range for this carat, shape, and diamond type.
12
$3,344
$9,138
$5,641
$25,620
Price History
Price Comparison Matrix
Live Listings
See all listingsCompare current retailer offers for this exact segment and open any listing for full details.
GIASave 95.9%10.35ct | Round | D | SI1 | Excellent
From $18,397
Compare at $445,050
10.36ct | Round | F | VS1 | Ideal
From $25,620
Compare at $29,470
IGISave 58.8%10.37ct | Round | F | SI1 | Ideal
From $6,367
Compare at $15,440
IGISave 25%10.38ct | Round | E | VS2 | Excellent
From $3,344
Compare at $4,458
10.39ct | Round | G | SI1 | Ideal
From $3,475
Compare at $8,550
IGISave 59.8%10.39ct | Round | H | VS1 | Ideal
From $19,410
Compare at $48,250
IGISave 84.3%10.39ct | Round | E | VS2 | Ideal
From $3,622
Compare at $23,130
IGISave 29.6%10.4ct | Round | G | VS1 | Excellent
From $8,895
Compare at $12,626
IGISave 80.9%10.41ct | Round | G | VVS2 | Ideal
From $4,914
Compare at $25,780
IGISave 30.8%10.42ct | Round | F | VS1 | Excellent
From $4,085
Compare at $5,900
IGISave 53.1%10.43ct | Round | F | SI1 | Ideal
From $7,301
Compare at $15,580
10.44ct | Round | G | VS1 | Ideal
From $4,227
Compare at $21,730
Entry pricing in this category starts around $3,344.
What to Know When Shopping for 10.4 Carat Round Lab Grown Diamonds
- Always compare identical certified diamonds across retailers. Identical certificate numbers can have price differences of $22,275 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 $5,640 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 12 comparable stones in this segment. Prices start around $3,344 and go up to $25,620.
Based on the latest market data, the average asking price is about $9,138 with a median around $5,640.
The observed spread is roughly $22,275 across tracked listings, which is about 86.9% 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 $5,640, 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 $22,275 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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