1.2 Carat Round Lab Grown Diamond Prices Comparison
As of April 2026, 1.2 carat round lab grown diamonds usually range from $154 to $4,319, with an average price of $822.In the last month, prices for these diamonds are down 0.4%.Compare 10,718 verified listings across 9 retailers tracked by CaratRadar.
1.2 Carat Round Lab Grown Diamond Market Overview
CaratRadar currently tracks 10,718 verified 1.2-carat round lab grown diamonds listed across 9 online retailers. Prices in this segment range from $154 to $4,319, with an average asking price of $822 and a median of $740.
The price spread of $4,165 (96.4% 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.
10,718 diamonds tracked in this segment
Price range: $154 to $4,319
Average price: $822
Median price: $740
Available across 9 retailers
Savings potential: up to 96.4%
Price Range Overview
As of Apr 12, 2026Real market range for this carat, shape, and diamond type.
10,718
$154
$822
$740
$4,319
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 46.6%GCAL | 1.2ct | Round | E | VVS1 | Ideal
From $1,810
Compare at $3,390
Save 76.1%GCAL | 1.2ct | Round | D | VVS1 | Ideal
From $808
Compare at $3,380
Save 74.6%GCAL | 1.2ct | Round | D | IF | Ideal
From $1,831
Compare at $7,200
Save 74.6%GCAL | 1.2ct | Round | D | IF | Excellent
From $1,831
Compare at $7,200
Save 74.6%GCAL | 1.2ct | Round | D | IF | Excellent
From $1,831
Compare at $7,200
Save 17.6%GIA | 1.2ct | Round | L | IF | Very Good
From $2,600
Compare at $3,156
Save 53.1%GIA | 1.2ct | Round | D | VS2 | Very Good
From $672
Compare at $1,434
Save 53.1%GIA | 1.2ct | Round | D | VS2 | Very Good
From $672
Compare at $1,434
Save 53.2%GIA | 1.2ct | Round | D | VS2 | Very Good
From $768
Compare at $1,642
GIA | 1.2ct | Round | D | VVS2 | Ideal
From $792
Compare at $795
Save 76.2%GIA | 1.2ct | Round | D | VVS2 | Ideal
From $859
Compare at $3,610
GIA | 1.2ct | Round | F | VVS2 | Excellent
From $6,503
Compare at $6,950
Save 53.1%GIA | 1.2ct | Round | D | VS1 | Very Good
From $642
Compare at $1,368
Save 53.2%GIA | 1.2ct | Round | D | VVS2 | Excellent
From $763
Compare at $1,631
Save 23.5%GIA | 1.2ct | Round | J | SI2 | Excellent
From $1,874
Compare at $2,451
Save 45.5%GIA | 1.2ct | Round | D | VVS2 | Very Good
From $536
Compare at $982
Save 45.5%GIA | 1.2ct | Round | D | VS2 | Excellent
From $536
Compare at $982
GIA | 1.2ct | Round | D | VVS2 | Ideal
From $792
Compare at $795
Save 49.6%GIA | 1.2ct | Round | D | IF | Excellent
From $4,025
Compare at $7,990
Save 62.8%GIA | 1.2ct | Round | D | IF | Ideal
From $2,970
Compare at $7,990
GIA | 1.2ct | Round | D | VVS2 | Ideal
From $792
Compare at $795
Save 53.1%GIA | 1.2ct | Round | D | VS1 | Excellent
From $642
Compare at $1,368
Save 38.7%GIA | 1.2ct | Round | D | SI1 | Excellent
From $405
Compare at $660
Save 53.2%GIA | 1.2ct | Round | E | VVS2 | Very Good
From $728
Compare at $1,554
Save 53.2%GIA | 1.2ct | Round | D | VVS2 | Very Good
From $690
Compare at $1,474
Save 53.2%GIA | 1.2ct | Round | D | VVS2 | Excellent
From $726
Compare at $1,550
Save 53.1%GIA | 1.2ct | Round | D | VS1 | Excellent
From $642
Compare at $1,368
GIA | 1.2ct | Round | D | VVS2 | Ideal
From $792
Compare at $795
Save 53.1%GIA | 1.2ct | Round | D | VS1 | Excellent
From $642
Compare at $1,368
Save 53.1%GIA | 1.2ct | Round | D | VS1 | Excellent
From $642
Compare at $1,368
Save 53.1%GIA | 1.2ct | Round | D | VS1 | Very Good
From $642
Compare at $1,368
Save 51.4%GIA | 1.2ct | Round | D | VVS1 | Ideal
From $908
Compare at $1,870
GIA | 1.2ct | Round | D | VVS2 | Ideal
From $792
Compare at $795
Save 77.1%GIA | 1.2ct | Round | D | VVS2 | Ideal
From $1,015
Compare at $4,440
Save 74.5%IGI | 1.2ct | Round | G | VVS2 | Ideal
From $507
Compare at $1,990
IGI | 1.2ct | Round | J | VS2 | Ideal
From $2,773
Compare at $2,775
Save 75.3%IGI | 1.2ct | Round | G | VVS2 | Ideal
From $437
Compare at $1,770
Save 74.3%IGI | 1.2ct | Round | F | VVS2 | Excellent
From $526
Compare at $2,050
IGI | 1.2ct | Round | H | VVS2 | Ideal
From $2,534
Compare at $2,535
IGI | 1.2ct | Round | I | SI1 | Ideal
From $3,017
Compare at $3,020
IGI | 1.2ct | Round | I | SI1 | Ideal
From $3,017
Compare at $3,020
IGI | 1.2ct | Round | I | SI1 | Ideal
From $3,017
Compare at $3,020
IGI | 1.2ct | Round | I | SI1 | Ideal
From $3,017
Compare at $3,020
IGI | 1.2ct | Round | I | SI1 | Ideal
From $3,017
Compare at $3,020
IGI | 1.2ct | Round | I | VS2 | Ideal
From $3,172
Compare at $3,175
IGI | 1.2ct | Round | I | VS2 | Ideal
From $3,172
Compare at $3,175
Save 74.2%IGI | 1.2ct | Round | H | VVS1 | Excellent
From $558
Compare at $2,160
Save 74.7%IGI | 1.2ct | Round | H | VVS2 | Ideal
From $489
Compare at $1,930
IGI | 1.2ct | Round | I | SI1 | Ideal
From $3,017
Compare at $3,020
Save 33%IGI | 1.2ct | Round | J | SI1 | Ideal
From $2,675
Compare at $3,995
Entry pricing in this category starts around $154.
What to Know When Shopping for 1.2 Carat Round Lab Grown Diamonds
- Always compare identical certified diamonds across retailers. Identical certificate numbers can have price differences of $4,165 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 $740 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 10,718 comparable stones in this segment. Prices start around $154 and go up to $4,319.
Based on the latest market data, the average asking price is about $822 with a median around $740.
The observed spread is roughly $4,165 across tracked listings, which is about 96.4% 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 $740, 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 9 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 $4,165 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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