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Radiant|Lab Grown|IGI

12.39ct F VS1 Radiant Lab Grown Diamond

EX • F/VS1 • IGI LG743507511

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI LG743507511

Diamond specifications and retailer prices

From $2,397 USD
As of October 30, 2026
Save $14,093 USD (85%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $23,480 USD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 12.39ct lab-grown radiant diamond

This 12.39ct lab-grown radiant sits in the over five carat band, graded F colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG743507511 or 743507511. Listed at 12 retailers as of October 30, 2026, with a 588% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

12.39
Carat
F
Color
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle46.1°
Pavilion angle34.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG743507511
Dimensions11.37 × 11.37 × 7.60 mm
L/W Ratio1.00
Culet sizePointed
Top View
11.37 mm11.37 mm12.39 ctF / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG743507511
Side View
Table 65.0%Crown 46.1°Girdle: MediumPavilion 34.9°Culet: NoneDepth 66.8%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $5,687 USD|Low: $2,043 USD|High: $16,490 USD|Avg: $5,271 USD
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
November 1, 2026
Retailer 3$2,043 USD
Retailer 10$2,465 USD
Retailer 9$2,854 USD
Retailer 4$2,944 USD
Retailer 7$3,062 USD
Retailer 13$3,320 USD
Retailer 16$3,906 USD
Retailer 17$3,990 USD
Retailer 5$4,069 USD
Retailer 2$4,169 USD
Retailer 12$4,642 USD
Retailer 1$5,687 USD
Retailer 8$6,474 USD
Retailer 6$6,909 USD
Retailer 14$7,787 USD
Retailer 11$9,166 USD
Retailer 15$16,490 USD

10 data points across 17 retailers

12 retailers$2,397 USD to $16,490 USD

A
Cheapest Retailer
-
$2,397 USD
A
Retailer 2
-
$2,465 USD
£1,941 GBP
View
A
Retailer 3
-
$3,320 USD
View
A
Retailer 4
-
$3,906 USD
View
A
Retailer 5
-
$3,990 USD
View
B+
Retailer 6
-
$4,169 USD
View
B+
Retailer 7
-
$4,642 USD
€4,421 EUR
View
B+
Retailer 8
-
$5,687 USD
A$8,749 AUD
View
B
Retailer 9
-
$7,787 USD
View
B
Retailer 10
-
$9,166 USD
A$14,102 AUD
View
B
Retailer 11
-
$16,490 USD
View
Most Expensive
Brilliant Earth
22300729A · Oct 31
$23,480 USD
View
Price under review
11 more retailers have this diamond
Prices start from $2,397 USDSave up to $14,093 USD

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

A
12.39ct Radiant
$2,397 USD