4.2 Carat Emerald Lab Grown Diamond Prices Comparison
As of February 2026, 4.2 carat emerald lab grown diamonds usually range from $685 to $27,780, with an average price of $3,932.In the last month, prices for these diamonds are down 2.3%.Compare 279 verified listings across 12 retailers tracked by CaratRadar.
4.2 Carat Emerald Lab Grown Diamond Market Overview
CaratRadar currently tracks 279 verified 4.2-carat emerald lab grown diamonds listed across 12 online retailers. Prices in this segment range from $685 to $27,780, with an average asking price of $3,932 and a median of $1,909.
The price spread of $27,095 (97.5% 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.
279 diamonds tracked in this segment
Price range: $685 to $27,780
Average price: $3,932
Median price: $1,909
Available across 12 retailers
Savings potential: up to 97.5%
Price Range Overview
As of Feb 28, 2026Real market range for this carat, shape, and diamond type.
279
$685
$3,932
$1,909
$27,780
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 84.7%4.16ct | Emerald | D | VS1 | Ideal
From $1,527
Compare at $9,960
IGISave 43.9%4.16ct | Emerald | FANCY | VVS2 | Very Good
From $1,590
Compare at $2,833
GCALSave 74.3%4.16ct | Emerald | D | IF | Ideal
From $13,109
Compare at $51,010
GIASave 85.5%4.16ct | Emerald | D | VVS1 | Excellent
From $3,564
Compare at $24,630
GIASave 74.8%4.16ct | Emerald | E | VVS1 | Excellent
From $5,488
Compare at $21,750
GIASave 76.4%4.16ct | Emerald | E | VS1 | Excellent
From $2,735
Compare at $11,580
IGISave 53.4%4.16ct | Emerald | G | VS1 | Ideal
From $19,530
Compare at $41,899
IGISave 73%4.16ct | Emerald | H | VS1 | Excellent
From $1,231
Compare at $4,560
IGISave 55%4.16ct | Emerald | E | VS1 | Excellent
From $1,066
Compare at $2,369
IGISave 83.4%4.16ct | Emerald | G | VS2 | Excellent
From $887
Compare at $5,340
IGISave 56.1%4.16ct | Emerald | H | VS1 | Ideal
From $746
Compare at $1,700
IGISave 72.5%4.16ct | Emerald | F | VS2 | Excellent
From $835
Compare at $3,035
IGISave 88.4%4.16ct | Emerald | E | VS2 | Ideal
From $910
Compare at $7,850
IGISave 69.6%4.16ct | Emerald | E | IF | Ideal
From $4,813
Compare at $15,810
IGISave 86.4%4.16ct | Emerald | F | VVS2 | Very Good
From $1,198
Compare at $8,830
IGISave 74%4.16ct | Emerald | FANCY | VS2 | Excellent
From $1,505
Compare at $5,782
GIASave 64.3%4.16ct | Emerald | D | VS1 | Excellent
From $4,665
Compare at $13,050
IGISave 27.5%4.16ct | Emerald | E | VVS2 | Excellent
From $7,390
Compare at $10,192
IGISave 85.6%4.16ct | Emerald | F | VS1 | Ideal
From $1,096
Compare at $7,600
IGISave 86.7%4.16ct | Emerald | E | VS1 | Very Good
From $1,322
Compare at $9,920
IGISave 56.5%4.16ct | Emerald | D | VVS2 | Ideal
From $2,337
Compare at $5,376
IGISave 44.1%4.16ct | Emerald | E | IF | Very Good
From $8,834
Compare at $15,810
IGISave 19.5%4.16ct | Emerald | E | VS1 | Very Good
From $956
Compare at $1,187
GIA4.16ct | Emerald | D | VVS2 | Excellent
From $12,555
Compare at $12,580
IGISave 31.2%4.16ct | Emerald | I | SI1 | Excellent
From $1,697
Compare at $2,466
IGISave 82%4.16ct | Emerald | D | VVS2 | Very Good
From $3,707
Compare at $20,630
IGISave 80.9%4.16ct | Emerald | D | VS1 | Ideal
From $1,608
Compare at $8,410
IGISave 83.4%4.16ct | Emerald | E | VVS2 | Very Good
From $1,287
Compare at $7,770
IGISave 33.4%4.17ct | Emerald | D | VVS2 | Ideal
From $27,420
Compare at $41,180
IGISave 55.3%4.17ct | Emerald | H | VS2 | Ideal
From $879
Compare at $1,965
GIA4.17ct | Emerald | E | VVS2 | Excellent
From $10,929
Compare at $11,810
IGISave 68.3%4.17ct | Emerald | E | IF | Ideal
From $5,005
Compare at $15,790
IGISave 84.8%4.17ct | Emerald | G | VS2 | Excellent
From $837
Compare at $5,490
IGISave 49.9%4.17ct | Emerald | H | VS1 | Ideal
From $869
Compare at $1,732
IGISave 84.7%4.17ct | Emerald | D | VS1 | Ideal
From $1,531
Compare at $9,990
IGISave 68.9%4.17ct | Emerald | E | VS2 | Ideal
From $1,049
Compare at $3,375
IGISave 57.1%4.17ct | Emerald | D | VVS2 | Very Good
From $2,312
Compare at $5,388
IGISave 57.8%4.17ct | Emerald | FANCY | VVS2 | Excellent
From $3,281
Compare at $7,783
GIA4.17ct | Emerald | D | VVS2 | Excellent
From $12,585
Compare at $12,610
GIASave 74.3%4.17ct | Emerald | D | VVS1 | Excellent
From $7,996
Compare at $31,060
IGISave 75.3%4.17ct | Emerald | D | VVS2 | Excellent
From $2,852
Compare at $11,550
IGISave 88%4.17ct | Emerald | E | VVS2 | Ideal
From $1,196
Compare at $9,970
IGISave 84.7%4.17ct | Emerald | D | VS1 | Ideal
From $1,531
Compare at $9,990
IGISave 49.6%4.17ct | Emerald | D | VVS1 | Very Good
From $4,605
Compare at $9,141
IGISave 81%4.17ct | Emerald | E | VVS2 | Very Good
From $1,893
Compare at $9,970
IGISave 72%4.17ct | Emerald | F | VS1 | Very Good
From $886
Compare at $3,165
IGISave 72.9%4.17ct | Emerald | F | VVS2 | Ideal
From $1,151
Compare at $4,250
IGISave 70.4%4.17ct | Emerald | E | VS1 | Very Good
From $1,062
Compare at $3,585
IGISave 76.3%4.17ct | Emerald | D | VVS1 | Ideal
From $2,591
Compare at $10,930
IGISave 82.8%4.17ct | Emerald | D | VVS1 | Excellent
From $2,278
Compare at $13,280
Entry pricing in this category starts around $685.
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 $27,095 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 $1,909 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 279 comparable stones in this segment. Prices start around $685 and go up to $27,780.
Based on the latest market data, the average asking price is about $3,932 with a median around $1,909.
The observed spread is roughly $27,095 across tracked listings, which is about 97.5% 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 $1,909, 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 $27,095 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.