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Radiant|Lab Grown|IGI

1.40ct E FL Radiant Lab Grown Diamond

ID • E/FL • IGI LG836617734

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

Certificate IGI LG836617734

Diamond specifications and retailer prices

From $453 USD
As of October 28, 2026
Save $2,697 USD (86%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $3,150 USD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 1.4ct lab-grown radiant diamond

This 1.4ct 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 LG836617734 or 836617734. Listed at 14 retailers as of October 28, 2026, with prices from $453 to $3,150, a $2,697 spread on the same certified stone. Brilliant Earth lists it at $3,150. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.40
Carat
E
Color
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle45.2°
Pavilion angle36°
OriginLab Grown
Grading LabIGI
CertificateIGI LG836617734
Dimensions7.63 × 5.57 × 3.78 mm
L/W Ratio1.37
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
7.63 mm5.57 mm1.40 ctE / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG836617734
Side View
Table 66.0%Crown 45.2°Girdle: MED-STKPavilion 36°Culet: NoneDepth 67.9%

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 28
Current: $3,150 USD|Low: $453 USD|High: $3,160 USD|Avg: $1,255 USD|-0.3%
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
October 18, 2026
Retailer 4$453 USD
Retailer 6$501 USD
Retailer 13$537 USD
Retailer 7$650 USD
Retailer 9$676 USD
Retailer 3$793 USD
Retailer 12$819 USD
Retailer 15$862 USD
Retailer 16$1,072 USD
Retailer 14$1,293 USD
Retailer 11$1,343 USD
Retailer 10$1,519 USD
Retailer 8$1,647 USD
Retailer 5$1,982 USD
Retailer 2$2,900 USD
Brilliant Earth$3,150 USD

10 data points across 16 retailers

14 retailers$453 USD to $3,150 USD

Retailer 1
-
$388 USD
Price last confirmed 24 days ago
A
Retailer 2
-
$453 USD
View
Final sale: no returns
Retailer 3
-
$501 USD
View
Price last confirmed 26 days ago
Retailer 4
-
$537 USD
£423 GBP
View
Price last confirmed 24 days ago
A
Retailer 5
-
$676 USD
€644 EUR
View
Retailer 6
-
$793 USD
View
Price last confirmed 25 days ago
Retailer 7
-
$862 USD
ZAR 13,921 ZAR
View
Price last confirmed 24 days ago
Retailer 8
-
$1,293 USD
View
Price last confirmed 24 days ago
B+
Retailer 9
-
$1,343 USD
SGD 1,815 SGD
View
B
Retailer 10
-
$1,519 USD
View
Retailer 11
-
$1,647 USD
View
Price last confirmed 25 days ago
Retailer 12
-
$1,982 USD
£1,561 GBP
View
Price last confirmed 25 days ago
Retailer 13
-
$2,900 USD
View
Price last confirmed 11 days ago
Most Expensive
B
Brilliant Earth
21641065A · Oct 29
$3,150 USD
View
13 more retailers have this diamond
Prices start from $453 USDSave up to $2,697 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
1.40ct Radiant
$453 USD