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Radiant|Lab Grown|IGI

1.40ct E FL Radiant Lab Grown Diamond

ID • E/FL • IGI LG816616274

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

Certificate IGI LG816616274

Diamond specifications and retailer prices

From $350 USD
As of October 28, 2026
Save $2,800 USD (89%) vs most expensive(unlock to see where)
18 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 LG816616274 or 816616274. Listed at 18 retailers as of October 28, 2026, with prices from $350 to $3,150, a $2,800 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 angle44.8°
Pavilion angle36°
OriginLab Grown
Grading LabIGI
CertificateIGI LG816616274
Dimensions7.62 × 5.62 × 3.83 mm
L/W Ratio1.36
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
7.62 mm5.62 mm1.40 ctE / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG816616274
Side View
Table 62.0%Crown 44.8°Girdle: Slightly ThickPavilion 36°Culet: NoneDepth 68.1%

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: $350 USD|High: $3,150 USD|Avg: $1,235 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
October 29, 2026
Retailer 14$350 USD
Retailer 13$520 USD
Retailer 10$599 USD
Retailer 8$628 USD
Retailer 2$646 USD
Retailer 4$676 USD
Retailer 12$1,034 USD
Retailer 9$1,123 USD
Retailer 11$1,224 USD
Retailer 6$1,343 USD
Retailer 7$1,473 USD
Retailer 5$1,519 USD
Retailer 3$2,900 USD
Brilliant Earth$3,150 USD

27 data points across 14 retailers

18 retailers$350 USD to $3,150 USD

A
Cheapest Retailer
-
$350 USD
Final sale: no returns
Retailer 2
-
$388 USD
View
Price last confirmed 27 days ago
Retailer 3
-
$453 USD
View
Price last confirmed 32 days ago
Retailer 4
-
$501 USD
View
Price last confirmed 26 days ago
A
Retailer 5
-
$520 USD
View
A
Retailer 6
-
$599 USD
View
A
Retailer 7
-
$628 USD
ZAR 10,150 ZAR
View
A
Retailer 8
-
$646 USD
£509 GBP
View
A
Retailer 9
-
$676 USD
€644 EUR
View
B+
Retailer 10
-
$1,034 USD
View
B+
Retailer 11
-
$1,123 USD
View
B+
Retailer 12
-
$1,224 USD
View
B+
Retailer 13
-
$1,343 USD
SGD 1,815 SGD
View
B
Retailer 14
-
$1,473 USD
£1,160 GBP
View
B
Retailer 15
-
$1,519 USD
View
Retailer 16
-
$1,611 USD
View
Price last confirmed 29 days ago
Retailer 17
-
$2,900 USD
View
Price last confirmed 11 days ago
Most Expensive
B
Brilliant Earth
21434362A · Oct 29
$3,150 USD
View
17 more retailers have this diamond
Prices start from $350 USDSave up to $2,800 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
$350 USD