Radiant|Lab Grown|IGI

1.39ct D FL Radiant Lab Grown Diamond

ID • D/FL • IGI LG804649569

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

Certificate IGI LG804649569

Diamond specifications and retailer prices

From $365 USD
£287 GBP
As of October 29, 2026
Save $3,745 USD (91%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $4,110 USD at Brilliant Earth · As of October 29, 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 D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG804649569 or 804649569. Listed at 9 retailers as of October 29, 2026, with prices from $365 to $4,110, a $3,745 spread on the same certified stone. Brilliant Earth lists it at $4,110. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.39
Carat
D
Color
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle45.1°
Pavilion angle34.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG804649569
Dimensions7.68 × 5.67 × 3.76 mm
L/W Ratio1.35
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
7.68 mm5.67 mm1.39 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG804649569
Side View
Table 64.0%Crown 45.1°Girdle: MED-STKPavilion 34.9°Culet: NoneDepth 66.3%

Caratlytics Score

How it works →
A+
Exceptional
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 29
Current: $4,110 USD|Low: $295 USD|High: $4,110 USD|Avg: $1,286 USD
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
Retailer 18
October 29, 2026
Retailer 5$295 USD
Retailer 6$330 USD
Retailer 11$365 USD
Retailer 15$533 USD
Retailer 12$555 USD
Retailer 4$720 USD
Retailer 18$823 USD
Retailer 7$826 USD
Retailer 3$851 USD
Retailer 14$980 USD
Retailer 8$1,039 USD
Retailer 16$1,167 USD
Retailer 2$1,419 USD
Retailer 10$1,615 USD
Retailer 9$1,686 USD
Retailer 13$2,280 USD
Retailer 17$3,110 USD
Brilliant Earth$4,110 USD

17 data points across 18 retailers

9 retailers$365 USD to $4,110 USD

A+
Cheapest Retailer
-
$365 USD
£287 GBP
A
Retailer 2
-
$533 USD
View
A
Retailer 3
-
$555 USD
View
B+
Retailer 4
-
$980 USD
View
B+
Retailer 5
-
$1,167 USD
View
B+
Retailer 6
-
$1,419 USD
£1,117 GBP
View
B+
Retailer 7
-
$2,280 USD
View
Retailer 8
-
$3,110 USD
View
Price last confirmed 8 days ago
Most Expensive
B
Brilliant Earth
21730812Y · Oct 29
$4,110 USD
View
8 more retailers have this diamond
Prices start from $365 USDSave up to $3,745 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
$365 USD