12 Carat Emerald Lab Grown Diamond Prices Comparison
As of October 2026, 12 carat emerald lab grown diamonds in the 12.00–12.99 carat benchmark range usually range from $635 to $32,050, with an average price of $6,718.In the last month, prices for these diamonds are down 2.2%.Compare 487 verified listings across 8 retailers tracked by CaratRadar.
12 Carat Emerald Lab Grown Diamond Market Overview
CaratRadar currently tracks 487 verified 12-carat emerald lab grown diamonds in the 12.00–12.99 carat benchmark range, listed across 8 online retailers. Prices in this segment range from $635 to $32,050, with an average asking price of $6,718 and a median of $4,407.
The price spread of $31,415 (98.0% 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 use the same benchmark range throughout the page and 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.
487 diamonds tracked in the 12.00–12.99 carat benchmark
Price range: $635 to $32,050
Average price: $6,718
Median price: $4,407
Available across 8 retailers
Savings potential: up to 98.0%
Price Range Overview
As of Oct 15, 2026Real market range for this carat, shape, and diamond type.
487
$635
$6,718
$4,407
$32,050
Price History
Price Comparison Matrix
Live Listings
See all listingsCompare current retailer offers in the same benchmark range and open any listing for full details.
Save 31.7%IGI | 12ct | Emerald | H | VS1 | Ideal
From $1,951
Compare at $2,856
Save 31.5%IGI | 12.13ct | Emerald | F | VVS2 | Ideal
From $2,065
Compare at $3,016
Save 54.1%IGI | 12.04ct | Emerald | F | VVS2 | Ideal
From $2,072
Compare at $4,515
Save 54.1%IGI | 12.06ct | Emerald | F | VVS2 | Ideal
From $2,076
Compare at $4,523
Save 54.1%IGI | 12.06ct | Emerald | F | VVS2 | Ideal
From $2,076
Compare at $4,523
Save 54.1%IGI | 12.06ct | Emerald | F | VVS2 | Ideal
From $2,076
Compare at $4,523
Save 54.1%IGI | 12.07ct | Emerald | F | VVS2 | Ideal
From $2,078
Compare at $4,526
Save 54.1%IGI | 12.09ct | Emerald | F | VVS2 | Excellent
From $2,081
Compare at $4,534
Save 54.1%IGI | 12.11ct | Emerald | F | VVS2 | Ideal
From $2,084
Compare at $4,540
Save 54.1%IGI | 12.15ct | Emerald | F | VVS2 | Ideal
From $2,091
Compare at $4,556
Save 54.1%IGI | 12.15ct | Emerald | F | VVS2 | Ideal
From $2,091
Compare at $4,556
Save 54.1%IGI | 12.17ct | Emerald | F | VVS2 | Ideal
From $2,095
Compare at $4,564
Save 54.1%IGI | 12.18ct | Emerald | F | VVS2 | Ideal
From $2,096
Compare at $4,567
Save 54.1%IGI | 12.19ct | Emerald | F | VVS2 | Ideal
From $2,098
Compare at $4,571
Save 54.1%IGI | 12.06ct | Emerald | F | VVS2 | Ideal
From $2,099
Compare at $4,573
Save 54.1%IGI | 12.2ct | Emerald | F | VVS2 | Ideal
From $2,100
Compare at $4,575
Save 54.1%IGI | 12.07ct | Emerald | F | VVS2 | Excellent
From $2,101
Compare at $4,576
Save 54.1%IGI | 12.08ct | Emerald | F | VVS2 | Ideal
From $2,102
Compare at $4,580
Save 54.1%IGI | 12.21ct | Emerald | F | VVS2 | Ideal
From $2,102
Compare at $4,579
Save 54.1%IGI | 12.22ct | Emerald | F | VVS2 | Ideal
From $2,103
Compare at $4,582
Save 54.1%IGI | 12.24ct | Emerald | F | VVS2 | Ideal
From $2,107
Compare at $4,590
Save 54.1%IGI | 12.25ct | Emerald | F | VVS2 | Ideal
From $2,109
Compare at $4,593
Save 54.1%IGI | 12.15ct | Emerald | F | VVS2 | Ideal
From $2,115
Compare at $4,607
Save 54.1%IGI | 12.31ct | Emerald | F | VVS2 | Ideal
From $2,119
Compare at $4,616
Save 54.1%IGI | 12.33ct | Emerald | F | VVS2 | Ideal
From $2,122
Compare at $4,623
Save 54.1%IGI | 12.34ct | Emerald | F | VVS2 | Ideal
From $2,124
Compare at $4,627
Save 54.1%IGI | 12.22ct | Emerald | F | VVS2 | Excellent
From $2,127
Compare at $4,633
Save 54.1%IGI | 12.38ct | Emerald | F | VVS2 | Ideal
From $2,131
Compare at $4,642
Save 54.1%IGI | 12.4ct | Emerald | F | VVS2 | Ideal
From $2,134
Compare at $4,650
Save 54.1%IGI | 12.41ct | Emerald | F | VVS2 | Ideal
From $2,136
Compare at $4,654
Save 54.1%IGI | 12.42ct | Emerald | F | VVS2 | Ideal
From $2,138
Compare at $4,657
Save 54.1%IGI | 12.42ct | Emerald | F | VVS2 | Ideal
From $2,138
Compare at $4,657
Save 54.1%IGI | 12.34ct | Emerald | F | VVS2 | Excellent
From $2,148
Compare at $4,678
Save 78.3%IGI | 12.09ct | Emerald | F | VVS2 | Excellent
From $2,149
Compare at $9,909
Save 54.1%IGI | 12.35ct | Emerald | F | VVS2 | Ideal
From $2,149
Compare at $4,683
Save 54.1%IGI | 12.36ct | Emerald | F | VVS2 | Ideal
From $2,151
Compare at $4,686
Save 54.1%IGI | 12.5ct | Emerald | F | VVS2 | Ideal
From $2,152
Compare at $4,687
Save 54.1%IGI | 12.5ct | Emerald | F | VVS2 | Ideal
From $2,152
Compare at $4,687
Save 54.1%IGI | 12.51ct | Emerald | F | VVS2 | Ideal
From $2,153
Compare at $4,691
Save 54.1%IGI | 12.53ct | Emerald | F | VVS2 | Ideal
From $2,157
Compare at $4,698
Save 54.1%IGI | 12.55ct | Emerald | F | VVS2 | Ideal
From $2,160
Compare at $4,706
Save 54.1%IGI | 12.55ct | Emerald | F | VVS2 | Ideal
From $2,160
Compare at $4,706
Save 54.1%IGI | 12.43ct | Emerald | F | VVS2 | Ideal
From $2,163
Compare at $4,713
Save 54.1%IGI | 12.58ct | Emerald | F | VVS2 | Excellent
From $2,165
Compare at $4,717
Save 54.1%IGI | 12.45ct | Emerald | F | VVS2 | Excellent
From $2,167
Compare at $4,721
Save 54.1%IGI | 12.61ct | Emerald | F | VVS2 | Ideal
From $2,171
Compare at $4,729
Save 54.1%IGI | 12.61ct | Emerald | F | VVS2 | Ideal
From $2,171
Compare at $4,729
Save 54.1%IGI | 12.61ct | Emerald | F | VVS2 | Ideal
From $2,171
Compare at $4,729
Save 54.1%IGI | 12.63ct | Emerald | F | VVS2 | Ideal
From $2,174
Compare at $4,736
Save 54.1%IGI | 12.64ct | Emerald | F | VVS2 | Ideal
From $2,176
Compare at $4,740
Entry pricing in this benchmark range starts around $635.
What to Know When Shopping for 12 Carat Emerald Lab Grown Diamonds
- Always compare identical certified diamonds across retailers. Identical certificate numbers can have price differences of $31,415 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 $4,407 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 487 comparable stones in the 12.00–12.99 carat benchmark range. Prices start around $635 and go up to $32,050.
Based on the latest market data, the average asking price is about $6,718 with a median around $4,407.
The observed spread is roughly $31,415 across tracked listings, which is about 98.0% from highest to lowest offer in the 12.00–12.99 carat benchmark range.
We refresh pricing data daily so these pages stay current with market changes.
Based on completed market data, the fair market benchmark is $6,718. The median price is $4,407, so offers between the median and fair benchmark can be reasonable, while reputable listings below the median may be especially competitive.
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 $31,415 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 the 12.00–12.99 carat Emerald diamond benchmark.