4.6 Carat Round Lab Grown Diamond Prices Comparison
As of February 2026, 4.6 carat round lab grown diamonds usually range from $676 to $43,140, with an average price of $1,970.In the last month, prices for these diamonds are down 4.6%.Compare 1,367 verified listings across 12 retailers tracked by CaratRadar.
4.6 Carat Round Lab Grown Diamond Market Overview
CaratRadar currently tracks 1,367 verified 4.6-carat round lab grown diamonds listed across 12 online retailers. Prices in this segment range from $676 to $43,140, with an average asking price of $1,970 and a median of $1,250.
The price spread of $42,464 (98.4% 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.
1,367 diamonds tracked in this segment
Price range: $676 to $43,140
Average price: $1,970
Median price: $1,250
Available across 12 retailers
Savings potential: up to 98.4%
Price Range Overview
As of Feb 28, 2026Real market range for this carat, shape, and diamond type.
1,367
$676
$1,970
$1,250
$43,140
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 67.5%4.55ct | Round | D | VS1 | Ideal
From $1,510
Compare at $4,640
IGISave 84.7%4.55ct | Round | E | VS1 | Ideal
From $1,302
Compare at $8,500
IGISave 30.8%4.55ct | Round | F | VS1 | Excellent
From $1,220
Compare at $1,763
IGISave 64.6%4.55ct | Round | F | VS2 | Ideal
From $1,224
Compare at $3,455
IGISave 70.3%4.55ct | Round | D | VS2 | Ideal
From $1,364
Compare at $4,595
IGISave 71.3%4.55ct | Round | H | VS2 | Ideal
From $2,293
Compare at $7,980
IGISave 74.6%4.55ct | Round | F | VS1 | Ideal
From $2,663
Compare at $10,480
IGISave 79.3%4.55ct | Round | F | VS1 | Excellent
From $1,710
Compare at $8,280
IGISave 84.4%4.55ct | Round | F | SI1 | Ideal
From $685
Compare at $4,390
IGISave 88.1%4.55ct | Round | G | VS1 | Ideal
From $1,075
Compare at $9,030
IGISave 85%4.55ct | Round | F | VS1 | Excellent
From $1,622
Compare at $10,810
IGISave 65.6%4.55ct | Round | E | VS1 | Excellent
From $1,144
Compare at $3,329
IGISave 81.5%4.55ct | Round | D | IF | Ideal
From $8,432
Compare at $45,480
IGISave 84%4.55ct | Round | E | VS1 | Excellent
From $1,051
Compare at $6,580
IGISave 84.1%4.55ct | Round | E | VVS2 | Excellent
From $1,069
Compare at $6,710
IGISave 16.3%4.55ct | Round | E | VS2 | Excellent
From $1,089
Compare at $1,301
IGISave 83.8%4.55ct | Round | D | VS1 | Excellent
From $1,161
Compare at $7,180
IGISave 83.3%4.55ct | Round | E | VS2 | Ideal
From $1,010
Compare at $6,040
IGISave 32.6%4.55ct | Round | E | VS1 | Ideal
From $1,165
Compare at $1,729
IGISave 90.8%4.55ct | Round | F | VVS2 | Ideal
From $1,066
Compare at $11,570
IGISave 84.4%4.55ct | Round | E | VVS2 | Excellent
From $1,204
Compare at $7,730
IGISave 51.3%4.55ct | Round | E | VS2 | Excellent
From $1,403
Compare at $2,883
IGISave 83.9%4.55ct | Round | F | VS1 | Excellent
From $1,178
Compare at $7,310
IGISave 62.6%4.55ct | Round | F | VVS2 | Ideal
From $1,133
Compare at $3,033
IGISave 84.1%4.55ct | Round | F | VS1 | Excellent
From $1,243
Compare at $7,800
IGISave 83.9%4.55ct | Round | E | VS2 | Excellent
From $1,194
Compare at $7,430
IGISave 32.6%4.55ct | Round | E | VS1 | Ideal
From $1,165
Compare at $1,729
IGISave 84.2%4.55ct | Round | E | VVS2 | Excellent
From $1,317
Compare at $8,360
IGISave 84.6%4.55ct | Round | E | VVS2 | Excellent
From $1,287
Compare at $8,360
IGISave 84.6%4.55ct | Round | E | VVS2 | Excellent
From $1,287
Compare at $8,360
IGISave 84.6%4.55ct | Round | E | VVS2 | Excellent
From $1,287
Compare at $8,360
IGISave 83.7%4.55ct | Round | F | VS1 | Excellent
From $968
Compare at $5,950
IGISave 65.2%4.55ct | Round | E | VS1 | Excellent
From $1,321
Compare at $3,800
IGISave 82.2%4.55ct | Round | D | VVS1 | Ideal
From $4,806
Compare at $27,060
IGISave 70.6%4.55ct | Round | D | FL | Ideal
From $19,278
Compare at $65,620
IGISave 63.4%4.55ct | Round | E | VS1 | Ideal
From $1,323
Compare at $3,614
IGISave 65%4.55ct | Round | E | VVS2 | Excellent
From $1,281
Compare at $3,663
GCALSave 78%4.55ct | Round | D | IF | Ideal
From $8,579
Compare at $39,060
GIASave 82.3%4.55ct | Round | D | VVS1 | Excellent
From $5,035
Compare at $28,400
IGISave 80.9%4.55ct | Round | G | VVS1 | Ideal
From $1,698
Compare at $8,880
IGISave 87.9%4.55ct | Round | G | VS2 | Ideal
From $1,089
Compare at $9,020
IGISave 79%4.55ct | Round | F | VS1 | Excellent
From $1,740
Compare at $8,280
IGISave 47.1%4.55ct | Round | H | VS1 | Ideal
From $1,779
Compare at $3,364
IGISave 89.9%4.55ct | Round | F | VS1 | Ideal
From $1,050
Compare at $10,390
IGISave 76.2%4.55ct | Round | F | SI1 | Excellent
From $1,274
Compare at $5,360
IGISave 76.2%4.55ct | Round | G | VS2 | Excellent
From $1,302
Compare at $5,470
IGISave 86%4.55ct | Round | D | VVS2 | Ideal
From $1,856
Compare at $13,250
IGISave 67.4%4.55ct | Round | E | VVS2 | Ideal
From $1,108
Compare at $3,401
IGISave 90.3%4.55ct | Round | E | VS1 | Excellent
From $1,089
Compare at $11,240
IGISave 69.4%4.55ct | Round | E | VS1 | Ideal
From $1,062
Compare at $3,466
Entry pricing in this category starts around $676.
What to Know When Shopping for 4.6 Carat Round Lab Grown Diamonds
- Always compare identical certified diamonds across retailers. Identical certificate numbers can have price differences of $42,464 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 $1,250 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 1,367 comparable stones in this segment. Prices start around $676 and go up to $43,140.
Based on the latest market data, the average asking price is about $1,970 with a median around $1,250.
The observed spread is roughly $42,464 across tracked listings, which is about 98.4% 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 $1,250, 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 $42,464 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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