4.3 Carat Round Lab Grown Diamond Prices Comparison
As of April 2026, 4.3 carat round lab grown diamonds usually range from $642 to $52,010, with an average price of $5,896.In the last month, prices for these diamonds are down 1.4%.Compare 623 verified listings across 12 retailers tracked by CaratRadar.
4.3 Carat Round Lab Grown Diamond Market Overview
CaratRadar currently tracks 623 verified 4.3-carat round lab grown diamonds listed across 12 online retailers. Prices in this segment range from $642 to $52,010, with an average asking price of $5,896 and a median of $4,280.
The price spread of $51,368 (98.8% 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.
623 diamonds tracked in this segment
Price range: $642 to $52,010
Average price: $5,896
Median price: $4,280
Available across 12 retailers
Savings potential: up to 98.8%
Price Range Overview
As of Apr 14, 2026Real market range for this carat, shape, and diamond type.
623
$642
$5,896
$4,280
$52,010
Price History
Price Comparison Matrix
Live Listings
See all listingsCompare current retailer offers for this exact segment and open any listing for full details.
GCAL | 4.3ct | Round | E | VVS2 | Excellent
From $4,142
Compare at $4,224
Save 65.8%GIA | 4.3ct | Round | D | VVS1 | Excellent
From $5,802
Compare at $16,956
Save 69.4%GIA | 4.3ct | Round | E | VS1 | Excellent
From $6,364
Compare at $20,800
Save 63%GIA | 4.3ct | Round | E | VVS2 | Ideal
From $4,397
Compare at $11,880
Save 65.8%GIA | 4.3ct | Round | D | VVS1 | Excellent
From $5,802
Compare at $16,956
Save 76.3%GIA | 4.3ct | Round | D | VVS1 | Excellent
From $5,590
Compare at $23,540
Save 75.8%GIA | 4.3ct | Round | D | VVS1 | Excellent
From $6,078
Compare at $25,110
Save 67.4%GIA | 4.3ct | Round | D | VVS2 | Excellent
From $4,871
Compare at $14,960
Save 75.8%GIA | 4.3ct | Round | D | VVS1 | Excellent
From $6,078
Compare at $25,110
GIA | 4.3ct | Round | D | FL | Ideal
From $35,550
Compare at $38,522
GIA | 4.3ct | Round | G | VS2 | Excellent
From $106,179
Compare at $117,847
Save 76.3%GIA | 4.3ct | Round | D | VVS1 | Excellent
From $5,590
Compare at $23,540
Save 75.8%GIA | 4.3ct | Round | D | VVS1 | Excellent
From $6,078
Compare at $25,110
Save 76.3%GIA | 4.3ct | Round | D | VVS1 | Excellent
From $5,590
Compare at $23,540
Save 69.7%GIA | 4.3ct | Round | E | VVS2 | Excellent
From $3,646
Compare at $12,020
Save 73.1%GIA | 4.3ct | Round | D | VVS2 | Excellent
From $3,895
Compare at $14,490
Save 65.8%GIA | 4.3ct | Round | D | VVS1 | Excellent
From $5,802
Compare at $16,956
Save 81.9%GIA | 4.3ct | Round | D | IF | Excellent
From $10,810
Compare at $59,785
Save 71.1%IGI | 4.3ct | Round | H | VS1 | Ideal
From $2,023
Compare at $7,000
Save 68.8%IGI | 4.3ct | Round | G | VS2 | Excellent
From $1,873
Compare at $6,010
Save 72%IGI | 4.3ct | Round | D | SI1 | Ideal
From $2,727
Compare at $9,740
Save 83.3%IGI | 4.3ct | Round | F | VS1 | Ideal
From $1,439
Compare at $8,642
Save 73.1%IGI | 4.3ct | Round | E | VVS1 | Ideal
From $3,210
Compare at $11,910
Save 76.3%IGI | 4.3ct | Round | E | IF | Ideal
From $6,802
Compare at $28,680
Save 76.4%IGI | 4.3ct | Round | G | VVS2 | Ideal
From $1,230
Compare at $5,210
Save 82.2%IGI | 4.3ct | Round | G | VS1 | Ideal
From $1,222
Compare at $6,860
Save 86.7%IGI | 4.3ct | Round | F | VVS2 | Ideal
From $1,414
Compare at $10,660
Save 82.2%IGI | 4.3ct | Round | F | VVS2 | Ideal
From $1,231
Compare at $6,930
Save 80.5%IGI | 4.3ct | Round | E | VS1 | Ideal
From $1,224
Compare at $6,270
Save 87%IGI | 4.3ct | Round | F | VS1 | Ideal
From $1,236
Compare at $9,490
Save 73.1%IGI | 4.3ct | Round | E | VVS1 | Ideal
From $3,210
Compare at $11,910
Save 77%IGI | 4.3ct | Round | F | VS1 | Excellent
From $1,891
Compare at $8,210
Save 77%IGI | 4.3ct | Round | E | SI1 | Excellent
From $1,801
Compare at $7,830
Save 72.1%IGI | 4.3ct | Round | D | VVS2 | Ideal
From $2,491
Compare at $8,930
Save 57.9%IGI | 4.3ct | Round | F | SI1 | Ideal
From $1,050
Compare at $2,492
Save 75.8%IGI | 4.3ct | Round | D | IF | Ideal
From $6,348
Compare at $26,230
Save 89.6%IGI | 4.3ct | Round | E | VVS2 | Excellent
From $1,244
Compare at $11,930
Save 85.9%IGI | 4.3ct | Round | E | VS1 | Ideal
From $1,467
Compare at $10,410
Save 75.1%IGI | 4.3ct | Round | E | VS2 | Excellent
From $1,295
Compare at $5,190
Save 63.4%IGI | 4.3ct | Round | E | VS1 | Ideal
From $1,410
Compare at $3,853
Save 89.1%IGI | 4.3ct | Round | E | VVS2 | Ideal
From $1,295
Compare at $11,930
Save 88.2%IGI | 4.3ct | Round | E | VS1 | Ideal
From $1,224
Compare at $10,400
Save 67.3%IGI | 4.3ct | Round | D | IF | Ideal
From $6,533
Compare at $19,970
Save 49.5%IGI | 4.3ct | Round | D | VS1 | Excellent
From $2,213
Compare at $4,385
Save 63.2%IGI | 4.3ct | Round | F | VVS2 | Ideal
From $1,256
Compare at $3,415
Save 76.9%IGI | 4.3ct | Round | E | VVS2 | Ideal
From $1,442
Compare at $6,230
Save 74.8%IGI | 4.3ct | Round | F | VS1 | Ideal
From $1,332
Compare at $5,290
Save 65.9%IGI | 4.3ct | Round | F | VS2 | Excellent
From $1,114
Compare at $3,265
Save 86.4%IGI | 4.3ct | Round | E | VS1 | Excellent
From $1,417
Compare at $10,420
Save 87.2%IGI | 4.3ct | Round | E | VVS2 | Excellent
From $1,529
Compare at $11,960
Entry pricing in this category starts around $642.
What to Know When Shopping for 4.3 Carat Round Lab Grown Diamonds
- Always compare identical certified diamonds across retailers. Identical certificate numbers can have price differences of $51,368 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 $4,280 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 623 comparable stones in this segment. Prices start around $642 and go up to $52,010.
Based on the latest market data, the average asking price is about $5,896 with a median around $4,280.
The observed spread is roughly $51,368 across tracked listings, which is about 98.8% 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 $4,280, 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 $51,368 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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