4.3 Carat Radiant Lab Grown Diamond Prices Comparison
As of April 2026, 4.3 carat radiant lab grown diamonds usually range from $733 to $48,793, with an average price of $5,697.In the last month, prices for these diamonds are down 10.1%.Compare 208 verified listings across 10 retailers tracked by CaratRadar.
4.3 Carat Radiant Lab Grown Diamond Market Overview
CaratRadar currently tracks 208 verified 4.3-carat radiant lab grown diamonds listed across 10 online retailers. Prices in this segment range from $733 to $48,793, with an average asking price of $5,697 and a median of $4,016.
The price spread of $48,060 (98.5% 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.
208 diamonds tracked in this segment
Price range: $733 to $48,793
Average price: $5,697
Median price: $4,016
Available across 10 retailers
Savings potential: up to 98.5%
Price Range Overview
As of Apr 14, 2026Real market range for this carat, shape, and diamond type.
208
$733
$5,697
$4,016
$48,793
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 70.9%GCAL | 4.3ct | Radiant | D | VS1 | Excellent
From $2,726
Compare at $9,360
Save 77.9%GCAL | 4.3ct | Radiant | E | VS1 | Excellent
From $2,017
Compare at $9,120
Save 66.7%GIA | 4.3ct | Radiant | D | VVS1 | Excellent
From $6,565
Compare at $19,722
Save 79.5%GIA | 4.3ct | Radiant | D | IF | Good
From $12,568
Compare at $61,340
Save 59.1%IGI | 4.3ct | Radiant | H | VS1 | Excellent
From $1,443
Compare at $3,530
Save 27%IGI | 4.3ct | Radiant | H | VVS2 | Good
From $6,730
Compare at $9,221
Save 31.2%IGI | 4.3ct | Radiant | E | VVS2 | Excellent
From $1,495
Compare at $2,172
IGI | 4.3ct | Radiant | E | VS1 | Ideal
From $2,711
Compare at $2,715
IGI | 4.3ct | Radiant | FANCY | VS2 | Very Good
From $3,418
Compare at $4,790
IGI | 4.3ct | Radiant | E | VS1 | Very Good
From $2,260
Save 43.7%IGI | 4.3ct | Radiant | E | VVS2 | Excellent
From $1,485
Compare at $2,638
IGI | 4.3ct | Radiant | D | IF | Ideal
From $21,771
Compare at $22,380
IGI | 4.3ct | Radiant | D | IF | Ideal
From $21,771
Compare at $22,380
Save 73.5%IGI | 4.3ct | Radiant | G | VS2 | Excellent
From $1,110
Compare at $4,190
Save 84%IGI | 4.3ct | Radiant | G | VVS2 | Ideal
From $1,293
Compare at $8,090
Save 76.9%IGI | 4.3ct | Radiant | D | VVS1 | Very Good
From $6,000
Compare at $26,010
Save 81%IGI | 4.3ct | Radiant | F | VVS1 | Ideal
From $1,996
Compare at $10,500
Save 76.3%IGI | 4.3ct | Radiant | F | VS1 | Very Good
From $1,947
Compare at $8,210
Save 74.4%IGI | 4.3ct | Radiant | G | VS1 | Very Good
From $1,085
Compare at $4,230
Save 77.6%IGI | 4.3ct | Radiant | E | VVS2 | Very Good
From $1,343
Compare at $6,000
Save 70.6%IGI | 4.3ct | Radiant | D | VS1 | Very Good
From $1,291
Compare at $4,385
Save 31%IGI | 4.3ct | Radiant | E | VVS2 | Very Good
From $1,357
Compare at $1,966
Save 30.3%IGI | 4.3ct | Radiant | E | VVS2 | Very Good
From $1,370
Compare at $1,966
Save 79.2%IGI | 4.3ct | Radiant | E | VVS2 | Very Good
From $985
Compare at $4,730
Save 30.4%IGI | 4.3ct | Radiant | F | VVS2 | Very Good
From $1,264
Compare at $1,816
Save 76.3%IGI | 4.3ct | Radiant | E | VS1 | Very Good
From $875
Compare at $3,695
Save 42.8%GCAL | 4.31ct | Radiant | D | VVS2 | Ideal
From $10,610
Compare at $18,540
Save 70.8%GCAL | 4.31ct | Radiant | D | VS2 | Ideal
From $2,643
Compare at $9,040
Save 77.5%GIA | 4.31ct | Radiant | D | IF | Ideal
From $11,952
Compare at $53,010
Save 76.9%GIA | 4.31ct | Radiant | E | VVS1 | Excellent
From $6,360
Compare at $27,520
Save 66.7%GIA | 4.31ct | Radiant | D | VVS1 | Excellent
From $6,580
Compare at $19,768
Save 56%GIA | 4.31ct | Radiant | F | VS1 | Very Good
From $5,517
Compare at $12,530
Save 13.7%GIA | 4.31ct | Radiant | F | VS1 | Ideal
From $5,819
Compare at $6,740
Save 61.8%IGI | 4.31ct | Radiant | G | IF | Ideal
From $5,363
Compare at $14,054
Save 71.4%IGI | 4.31ct | Radiant | F | VS1 | Ideal
From $1,604
Compare at $5,610
IGI | 4.31ct | Radiant | D | IF | Ideal
From $21,822
Compare at $22,440
IGI | 4.31ct | Radiant | D | IF | Very Good
From $21,822
Compare at $22,440
IGI | 4.31ct | Radiant | D | IF | Very Good
From $21,822
Compare at $22,440
Save 19%IGI | 4.31ct | Radiant | D | VVS1 | Ideal
From $13,940
Compare at $17,201
Save 86.8%IGI | 4.31ct | Radiant | G | VVS2 | Ideal
From $1,071
Compare at $8,090
Save 76.3%IGI | 4.31ct | Radiant | F | VS1 | Very Good
From $1,951
Compare at $8,230
Save 30.9%IGI | 4.31ct | Radiant | D | VVS2 | Very Good
From $1,678
Compare at $2,428
Save 85.3%IGI | 4.31ct | Radiant | E | VS2 | Very Good
From $1,202
Compare at $8,150
Save 57.7%IGI | 4.31ct | Radiant | D | VVS2 | Very Good
From $2,954
Compare at $6,990
Save 83.9%IGI | 4.31ct | Radiant | F | VS1 | Excellent
From $945
Compare at $5,880
IGI | 4.31ct | Radiant | FANCY | VS1 | Ideal
From $3,426
Compare at $4,802
Save 79.2%IGI | 4.31ct | Radiant | E | VVS2 | Very Good
From $1,615
Compare at $7,760
Save 67.1%IGI | 4.31ct | Radiant | D | VVS2 | Very Good
From $1,788
Compare at $5,430
Save 66.4%IGI | 4.31ct | Radiant | E | VS1 | Very Good
From $1,245
Compare at $3,705
Save 30.3%IGI | 4.31ct | Radiant | E | VVS2 | Very Good
From $1,386
Compare at $1,990
Entry pricing in this category starts around $733.
What to Know When Shopping for 4.3 Carat Radiant Lab Grown Diamonds
- Always compare identical certified diamonds across retailers. Identical certificate numbers can have price differences of $48,060 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 $4,016 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.
- Radiant cuts combine the elegance of emerald shapes with the brilliance of round cuts, offering good value per carat.
Frequently Asked Questions
We currently track 208 comparable stones in this segment. Prices start around $733 and go up to $48,793.
Based on the latest market data, the average asking price is about $5,697 with a median around $4,016.
The observed spread is roughly $48,060 across tracked listings, which is about 98.5% 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 $4,016, 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 10 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 $48,060 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.
Related Price Categories
Explore adjacent carat ranges and shapes to compare market shifts.
4.2 Carat Radiant Lab Grown Diamond Prices
4.1 Carat Radiant Lab Grown Diamond Prices
4 Carat Radiant Lab Grown Diamond Prices
4.4 Carat Radiant Lab Grown Diamond Prices
3.9 Carat Radiant Lab Grown Diamond Prices
4.5 Carat Radiant Lab Grown Diamond Prices
3.8 Carat Radiant Lab Grown Diamond Prices
4.3 Carat Round Lab Grown Diamond Prices
4.3 Carat Oval Lab Grown Diamond Prices
4.3 Carat Emerald Lab Grown Diamond Prices
4.3 Carat Cushion Lab Grown Diamond Prices
4.3 Carat Pear Lab Grown Diamond Prices
Tracking Lab Grown inventory for 4.3 carat Radiant diamonds.