Radiant|Lab Grown|IGI

1.37ct D FL Radiant Lab Grown Diamond

ID • D/FL • IGI LG784642059

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

Certificate IGI LG784642059

Diamond specifications and retailer prices

From $255 USD
As of October 30, 2026
Save $2,215 USD (90%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $3,065 USD at Rare Carat · As of October 21, 2026
View at Rare Carat

About this 1.37ct lab-grown radiant diamond

This 1.37ct 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 LG784642059 or 784642059. Listed at 15 retailers as of October 30, 2026, with a 869% 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

1.37
Carat
D
Color
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.6°
Pavilion angle35.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG784642059
Dimensions7.75 × 5.56 × 3.74 mm
L/W Ratio1.39
Culet sizePointed
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
7.75 mm5.56 mm1.37 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG784642059
Side View
Table 63.0%Crown 39.6°Girdle: Slightly ThickPavilion 35.9°Culet: NoneDepth 67.3%

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 30
Current: $3,065 USD|Low: $255 USD|High: $4,180 USD|Avg: $1,460 USD|+12.4%
Rare Carat
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 30, 2026
Retailer 6$255 USD
Retailer 4$448 USD
Retailer 7$484 USD
Retailer 10$528 USD
Retailer 12$550 USD
Retailer 11$597 USD
Retailer 3$769 USD
Retailer 9$973 USD
Retailer 5$1,408 USD
Retailer 8$2,270 USD
Retailer 2$2,470 USD
Rare Carat$3,065 USD

29 data points across 12 retailers

15 retailers$255 USD to $2,470 USD

A+
Cheapest Retailer
-
$255 USD
Retailer 2
-
$355 USD
View
Price last confirmed 30 days ago
Retailer 3
-
$411 USD
View
Price last confirmed 33 days ago
A
Retailer 4
-
$448 USD
View
Final sale: no returns
A
Retailer 5
-
$484 USD
View
A
Retailer 6
-
$528 USD
View
A
Retailer 7
-
$550 USD
View
A
Retailer 8
-
$597 USD
€569 EUR
View
A
Retailer 9
-
$769 USD
View
B+
Retailer 10
-
$973 USD
View
B+
Retailer 11
-
$1,408 USD
£1,109 GBP
View
Retailer 12
-
$1,561 USD
View
Price last confirmed 30 days ago
B
Retailer 13
-
$2,270 USD
View
B
Retailer 14
-
$2,470 USD
View
Most Expensive
Rare Carat
P84I-44 · Oct 21
$3,065 USD
View
Price last confirmed 9 days ago
14 more retailers have this diamond
Prices start from $255 USDSave up to $2,215 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+
1.37ct Radiant
$255 USD