Radiant|Lab Grown|IGI

1.39ct E FL Radiant Lab Grown Diamond

ID • E/FL • IGI LG799639038

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

Certificate IGI LG799639038

Diamond specifications and retailer prices

From $347 USD
As of October 30, 2026
Save $2,783 USD (89%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $3,240 USD at Brilliant Earth · As of September 28, 2026
View at Brilliant Earth

About this 1.39ct lab-grown radiant diamond

This 1.39ct lab-grown radiant sits in the one-and-a-quarter to one-and-a-half carat band, graded E colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG799639038 or 799639038. Listed at 22 retailers as of October 29, 2026, with a 802% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.39
Carat
E
Color
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle45.9°
Pavilion angle35.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG799639038
Dimensions7.80 × 5.36 × 3.71 mm
L/W Ratio1.46
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
7.80 mm5.36 mm1.39 ctE / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG799639038
Side View
Table 66.0%Crown 45.9°Girdle: Slightly ThickPavilion 35.1°Culet: NoneDepth 69.2%

Caratlytics Score

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

Price History

Last verified: Oct 30
Current: $3,130 USD|Low: $328 USD|High: $3,240 USD|Avg: $1,240 USD|-3.4%
Brilliant Earth
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
October 30, 2026
Retailer 11$347 USD
Retailer 8$498 USD
Retailer 3$520 USD
Retailer 15$595 USD
Retailer 13$618 USD
Retailer 10$624 USD
Retailer 2$642 USD
Retailer 4$672 USD
Retailer 17$1,020 USD
Retailer 14$1,116 USD
Retailer 6$1,131 USD
Retailer 16$1,216 USD
Retailer 7$1,331 USD
Retailer 9$1,448 USD
Retailer 12$1,458 USD
Retailer 5$2,820 USD
Brilliant Earth$3,130 USD

31 data points across 17 retailers

22 retailers$347 USD to $3,130 USD

A
Cheapest Retailer
-
$347 USD
Final sale: no returns
Retailer 2
-
$385 USD
View
Price last confirmed 28 days ago
Retailer 3
-
$450 USD
View
Price last confirmed 32 days ago
Retailer 4
-
$498 USD
View
Price last confirmed 27 days ago
A
Retailer 5
-
$520 USD
View
A
Retailer 6
-
$595 USD
View
A
Retailer 7
-
$618 USD
View
A
Retailer 8
-
$624 USD
ZAR 10,084 ZAR
View
A
Retailer 9
-
$642 USD
£505 GBP
View
A
Retailer 10
-
$672 USD
€640 EUR
View
B+
Retailer 11
-
$1,020 USD
View
Retailer 12
-
$1,095 USD
View
Price last confirmed 24 days ago
B+
Retailer 13
-
$1,116 USD
View
B+
Retailer 14
-
$1,131 USD
View
B+
Retailer 15
-
$1,216 USD
View
B+
Retailer 16
-
$1,331 USD
SGD 1,799 SGD
View
Retailer 17
-
$1,448 USD
£1,140 GBP
View
Price last confirmed 25 days ago
B+
Retailer 18
-
$1,458 USD
£1,148 GBP
View
Retailer 19
-
$1,600 USD
View
Price last confirmed 29 days ago
Retailer 20
-
$2,820 USD
View
Price last confirmed 11 days ago
B
Retailer 21
-
$3,130 USD
View
Most Expensive
Brilliant Earth
20485125A · Sep 28
$3,240 USD
View
Price last confirmed 31 days ago
21 more retailers have this diamond
Prices start from $347 USDSave up to $2,783 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
1.39ct Radiant
$347 USD