4.2 Carat Emerald Lab Grown Diamond Prices Comparison
As of April 2026, 4.2 carat emerald lab grown diamonds usually range from $649 to $42,404, with an average price of $5,598.In the last month, prices for these diamonds are down 0.6%.Compare 248 verified listings across 8 retailers tracked by CaratRadar.
4.2 Carat Emerald Lab Grown Diamond Market Overview
CaratRadar currently tracks 248 verified 4.2-carat emerald lab grown diamonds listed across 8 online retailers. Prices in this segment range from $649 to $42,404, with an average asking price of $5,598 and a median of $4,208.
The price spread of $41,755 (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.
248 diamonds tracked in this segment
Price range: $649 to $42,404
Average price: $5,598
Median price: $4,208
Available across 8 retailers
Savings potential: up to 98.5%
Price Range Overview
As of Apr 14, 2026Real market range for this carat, shape, and diamond type.
248
$649
$5,598
$4,208
$42,404
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 42.8%GIA | 4.21ct | Emerald | F | VS1 | Excellent
From $7,866
Compare at $13,740
Save 73%GIA | 4.21ct | Emerald | D | VVS2 | Excellent
From $5,318
Compare at $19,730
Save 82.7%IGI | 4.21ct | Emerald | F | VS1 | Ideal
From $1,437
Compare at $8,330
Save 83.9%IGI | 4.21ct | Emerald | G | VS1 | Good
From $1,147
Compare at $7,140
Save 79%IGI | 4.21ct | Emerald | D | VS1 | Ideal
From $1,584
Compare at $7,540
Save 82.7%IGI | 4.21ct | Emerald | D | VVS2 | Ideal
From $1,930
Compare at $11,140
Save 78.7%IGI | 4.21ct | Emerald | D | VS2 | Ideal
From $1,552
Compare at $7,270
Save 71.7%IGI | 4.21ct | Emerald | E | VVS1 | Excellent
From $3,262
Compare at $11,540
Save 71.6%IGI | 4.21ct | Emerald | G | VVS2 | Ideal
From $1,303
Compare at $4,590
Save 72.4%IGI | 4.21ct | Emerald | D | VVS2 | Ideal
From $3,890
Compare at $14,080
Save 81%IGI | 4.21ct | Emerald | D | VVS2 | Ideal
From $1,930
Compare at $10,180
Save 81.9%IGI | 4.21ct | Emerald | D | VVS2 | Ideal
From $1,930
Compare at $10,660
Save 81.1%IGI | 4.21ct | Emerald | D | VS1 | Ideal
From $1,584
Compare at $8,390
Save 83.5%IGI | 4.21ct | Emerald | D | VVS2 | Ideal
From $1,930
Compare at $11,710
Save 80.1%IGI | 4.21ct | Emerald | D | VS1 | Ideal
From $1,584
Compare at $7,970
Save 63.2%IGI | 4.21ct | Emerald | D | VVS1 | Ideal
From $4,957
Compare at $13,460
Save 80.1%IGI | 4.21ct | Emerald | D | VVS2 | Ideal
From $1,930
Compare at $9,700
Save 83.5%IGI | 4.21ct | Emerald | D | VVS2 | Ideal
From $1,930
Compare at $11,710
Save 84.4%IGI | 4.21ct | Emerald | D | VS1 | Ideal
From $1,584
Compare at $10,170
Save 74.8%IGI | 4.21ct | Emerald | D | IF | Excellent
From $7,653
Compare at $30,410
Save 66.8%IGI | 4.21ct | Emerald | D | VVS1 | Excellent
From $3,469
Compare at $10,459
Save 67.9%IGI | 4.21ct | Emerald | E | VVS1 | Ideal
From $2,156
Compare at $6,720
Save 63.8%IGI | 4.21ct | Emerald | D | VVS1 | Very Good
From $4,873
Compare at $13,460
Save 77.9%IGI | 4.21ct | Emerald | D | VVS2 | Ideal
From $2,607
Compare at $11,800
Save 81%IGI | 4.21ct | Emerald | F | VVS2 | Excellent
From $1,570
Compare at $8,250
Save 81.8%IGI | 4.21ct | Emerald | E | VS1 | Very Good
From $1,201
Compare at $6,590
Save 64.1%IGI | 4.21ct | Emerald | D | IF | Very Good
From $7,869
Compare at $21,930
Save 36.7%GIA | 4.22ct | Emerald | E | VVS2 | Ideal
From $9,424
Compare at $14,880
Save 53.1%GIA | 4.22ct | Emerald | E | VS2 | Excellent
From $7,343
Compare at $15,650
Save 35.5%GIA | 4.22ct | Emerald | E | VS1 | Ideal
From $8,883
Compare at $13,770
Save 65.6%GIA | 4.22ct | Emerald | D | VS1 | Excellent
From $4,730
Compare at $13,770
Save 74.2%GIA | 4.22ct | Emerald | D | VVS1 | Excellent
From $8,091
Compare at $31,410
Save 27%IGI | 4.22ct | Emerald | F | VVS2 | Excellent
From $5,697
Compare at $7,800
Save 75.1%IGI | 4.22ct | Emerald | G | VS2 | Ideal
From $1,026
Compare at $4,120
Save 82%IGI | 4.22ct | Emerald | D | VS1 | Ideal
From $1,588
Compare at $8,830
Save 80.5%IGI | 4.22ct | Emerald | E | VS1 | Ideal
From $1,468
Compare at $7,540
Save 76.3%IGI | 4.22ct | Emerald | D | VS2 | Ideal
From $1,468
Compare at $6,180
Save 61.3%IGI | 4.22ct | Emerald | FANCY | VS1 | Excellent
From $3,577
Compare at $9,250
Save 65.7%IGI | 4.22ct | Emerald | D | IF | Very Good
From $7,540
Compare at $21,980
Save 83.6%IGI | 4.22ct | Emerald | D | VVS2 | Ideal
From $1,934
Compare at $11,760
Save 76.7%IGI | 4.22ct | Emerald | E | VVS2 | Ideal
From $1,468
Compare at $6,300
Save 63.2%IGI | 4.22ct | Emerald | D | VVS1 | Ideal
From $4,968
Compare at $13,490
Save 83.6%IGI | 4.22ct | Emerald | D | VVS2 | Ideal
From $1,934
Compare at $11,760
Save 83.6%IGI | 4.22ct | Emerald | D | VVS2 | Ideal
From $1,934
Compare at $11,760
Save 71.1%IGI | 4.22ct | Emerald | D | VS2 | Ideal
From $1,468
Compare at $5,080
Save 83.6%IGI | 4.22ct | Emerald | D | VVS2 | Ideal
From $1,934
Compare at $11,760
Save 69.9%IGI | 4.22ct | Emerald | E | VVS1 | Ideal
From $2,312
Compare at $7,690
Save 85.1%IGI | 4.22ct | Emerald | G | VS1 | Ideal
From $1,070
Compare at $7,160
Save 49.2%IGI | 4.22ct | Emerald | D | VS1 | Very Good
From $2,186
Compare at $4,300
Save 67.9%IGI | 4.22ct | Emerald | E | VVS1 | Ideal
From $2,312
Compare at $7,210
Entry pricing in this category starts around $649.
What to Know When Shopping for 4.2 Carat Emerald Lab Grown Diamonds
- Always compare identical certified diamonds across retailers. Identical certificate numbers can have price differences of $41,755 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 $4,208 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.
- Emerald cuts show clarity more readily due to their step-cut facets. Consider VS2 or better clarity for this shape.
Frequently Asked Questions
We currently track 248 comparable stones in this segment. Prices start around $649 and go up to $42,404.
Based on the latest market data, the average asking price is about $5,598 with a median around $4,208.
The observed spread is roughly $41,755 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 $4,208, 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 8 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 $41,755 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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Tracking Lab Grown inventory for 4.2 carat Emerald diamonds.