1.3 Carat Round Lab Grown Diamond Prices Comparison
As of April 2026, 1.3 carat round lab grown diamonds usually range from $258 to $5,860, with an average price of $925.In the last month, prices for these diamonds are down 1.4%.Compare 5,482 verified listings across 8 retailers tracked by CaratRadar.
1.3 Carat Round Lab Grown Diamond Market Overview
CaratRadar currently tracks 5,482 verified 1.3-carat round lab grown diamonds listed across 8 online retailers. Prices in this segment range from $258 to $5,860, with an average asking price of $925 and a median of $815.
The price spread of $5,602 (95.6% 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.
5,482 diamonds tracked in this segment
Price range: $258 to $5,860
Average price: $925
Median price: $815
Available across 8 retailers
Savings potential: up to 95.6%
Price Range Overview
As of Apr 12, 2026Real market range for this carat, shape, and diamond type.
5,482
$258
$925
$815
$5,860
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 52.6%GCAL | 1.31ct | Round | E | IF | Ideal
From $3,320
Compare at $7,010
Save 68.2%GCAL | 1.31ct | Round | F | IF | Excellent
From $2,099
Compare at $6,600
Save 78.1%GCAL | 1.31ct | Round | D | VVS2 | Ideal
From $751
Compare at $3,430
Save 74.5%GCAL | 1.31ct | Round | D | IF | Ideal
From $1,997
Compare at $7,830
Save 73.1%GCAL | 1.31ct | Round | E | VVS1 | Excellent
From $634
Compare at $2,360
Save 76.1%GIA | 1.31ct | Round | D | VS1 | Ideal
From $913
Compare at $3,820
Save 23.5%GIA | 1.31ct | Round | D | VS1 | Excellent
From $1,860
Compare at $2,430
Save 54.9%GIA | 1.31ct | Round | D | VS1 | Very Good
From $700
Compare at $1,550
Save 27.7%GIA | 1.31ct | Round | D | VS2 | Excellent
From $1,720
Compare at $2,380
Save 53.2%GIA | 1.31ct | Round | D | VS1 | Excellent
From $700
Compare at $1,494
Save 62.4%GIA | 1.31ct | Round | D | VS1 | Very Good
From $557
Compare at $1,480
Save 40.2%GIA | 1.31ct | Round | D | SI1 | Excellent
From $550
Compare at $920
Save 68.5%GIA | 1.31ct | Round | D | VVS2 | Excellent
From $899
Compare at $2,850
Save 74.3%IGI | 1.31ct | Round | H | VVS2 | Ideal
From $534
Compare at $2,080
IGI | 1.31ct | Round | H | VS2 | Ideal
From $2,416
Compare at $2,420
IGI | 1.31ct | Round | J | SI1 | Ideal
From $1,878
Compare at $1,880
Save 72.6%IGI | 1.31ct | Round | H | VVS1 | Very Good
From $641
Compare at $2,340
Save 72.6%IGI | 1.31ct | Round | H | VVS1 | Excellent
From $641
Compare at $2,340
Save 74.3%IGI | 1.31ct | Round | H | VVS2 | Ideal
From $534
Compare at $2,080
Save 74.2%IGI | 1.31ct | Round | G | VVS2 | Excellent
From $554
Compare at $2,150
Save 74.4%IGI | 1.31ct | Round | I | VVS2 | Ideal
From $524
Compare at $2,050
IGI | 1.31ct | Round | I | SI1 | Ideal
From $2,067
Compare at $2,070
IGI | 1.31ct | Round | I | SI1 | Ideal
From $2,067
Compare at $2,070
IGI | 1.31ct | Round | I | SI1 | Ideal
From $2,067
Compare at $2,070
IGI | 1.31ct | Round | I | SI1 | Ideal
From $2,067
Compare at $2,070
IGI | 1.31ct | Round | G | VS2 | Ideal
From $2,632
Compare at $2,635
Save 36.5%IGI | 1.31ct | Round | F | VS1 | Ideal
From $3,120
Compare at $4,910
Save 36.5%IGI | 1.31ct | Round | F | VS1 | Ideal
From $3,120
Compare at $4,910
Save 36.5%IGI | 1.31ct | Round | F | VS1 | Ideal
From $3,120
Compare at $4,910
IGI | 1.31ct | Round | E | VS2 | Ideal
From $2,943
Compare at $2,945
IGI | 1.31ct | Round | E | VS1 | Ideal
From $3,414
Compare at $3,415
Save 36.5%IGI | 1.31ct | Round | F | VS1 | Ideal
From $3,120
Compare at $4,910
Save 36.5%IGI | 1.31ct | Round | F | VS1 | Ideal
From $3,120
Compare at $4,910
Save 36.5%IGI | 1.31ct | Round | F | VS1 | Ideal
From $3,120
Compare at $4,910
Save 36.5%IGI | 1.31ct | Round | F | VS1 | Ideal
From $3,120
Compare at $4,910
IGI | 1.31ct | Round | F | VS2 | Ideal
From $2,753
Compare at $2,755
IGI | 1.31ct | Round | H | VS1 | Ideal
From $2,612
Compare at $2,615
IGI | 1.31ct | Round | I | SI1 | Ideal
From $2,067
Compare at $2,070
Save 33.1%IGI | 1.31ct | Round | J | VS2 | Ideal
From $1,985
Compare at $2,965
Save 71.8%IGI | 1.31ct | Round | E | VVS2 | Excellent
From $446
Compare at $1,580
IGI | 1.31ct | Round | G | VS1 | Ideal
From $2,767
Compare at $2,770
IGI | 1.31ct | Round | I | VVS2 | Ideal
From $2,318
Compare at $2,320
Save 49.8%IGI | 1.31ct | Round | D | VS1 | Excellent
From $435
Compare at $867
Save 49.8%IGI | 1.31ct | Round | D | VS1 | Excellent
From $435
Compare at $867
Save 71.8%IGI | 1.31ct | Round | E | VVS2 | Excellent
From $446
Compare at $1,580
Save 49.8%IGI | 1.31ct | Round | D | VS1 | Excellent
From $435
Compare at $867
Save 50.3%IGI | 1.31ct | Round | D | VVS2 | Ideal
From $452
Compare at $910
Save 49.8%IGI | 1.31ct | Round | D | VS1 | Excellent
From $435
Compare at $867
IGI | 1.31ct | Round | H | SI1 | Ideal
From $2,259
Compare at $2,260
Save 70%IGI | 1.31ct | Round | E | VS1 | Excellent
From $429
Compare at $1,430
Entry pricing in this category starts around $258.
What to Know When Shopping for 1.3 Carat Round Lab Grown Diamonds
- Always compare identical certified diamonds across retailers. Identical certificate numbers can have price differences of $5,602 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 $815 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 5,482 comparable stones in this segment. Prices start around $258 and go up to $5,860.
Based on the latest market data, the average asking price is about $925 with a median around $815.
The observed spread is roughly $5,602 across tracked listings, which is about 95.6% 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 $815, 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 $5,602 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 1.3 carat Round diamonds.