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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 $621 NZD
$350 USD
As of October 30, 2026
Save $4,968 NZD (89%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $5,589 NZD 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 29, 2026, with prices from $621 to $5,589, a $4,968 spread on the same certified stone. Brilliant Earth lists it at $5,589. 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
Colour
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
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $5,589 NZD|Low: $621 NZD|High: $5,589 NZD|Avg: $2,190 NZD
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 30, 2026
Retailer 14$621 NZD
Retailer 13$923 NZD
Retailer 10$1,063 NZD
Retailer 8$1,115 NZD
Retailer 2$1,147 NZD
Retailer 4$1,200 NZD
Retailer 12$1,835 NZD
Retailer 9$1,993 NZD
Retailer 11$2,171 NZD
Retailer 6$2,383 NZD
Retailer 7$2,614 NZD
Retailer 5$2,695 NZD
Retailer 3$5,145 NZD
Brilliant Earth$5,589 NZD

28 data points across 14 retailers

18 retailers$621 NZD to $5,589 NZD

A
Cheapest Retailer
-
$621 NZD
$350 USD
Final sale: no returns
Retailer 2
-
$688 NZD
$388 USD
View
Price last confirmed 28 days ago
Retailer 3
-
$804 NZD
$453 USD
View
Price last confirmed 33 days ago
Retailer 4
-
$889 NZD
$501 USD
View
Price last confirmed 27 days ago
A
Retailer 5
-
$923 NZD
$520 USD
View
A
Retailer 6
-
$1,063 NZD
$599 USD
View
A
Retailer 7
-
$1,115 NZD
ZAR 10,150 ZAR
View
A
Retailer 8
-
$1,147 NZD
£509 GBP
View
A
Retailer 9
-
$1,200 NZD
€644 EUR
View
B+
Retailer 10
-
$1,835 NZD
$1,034 USD
View
B+
Retailer 11
-
$1,993 NZD
$1,123 USD
View
B+
Retailer 12
-
$2,171 NZD
$1,224 USD
View
B+
Retailer 13
-
$2,383 NZD
SGD 1,815 SGD
View
B
Retailer 14
-
$2,614 NZD
£1,160 GBP
View
B
Retailer 15
-
$2,695 NZD
$1,519 USD
View
Retailer 16
-
$2,858 NZD
$1,611 USD
View
Price last confirmed 29 days ago
Retailer 17
-
$5,145 NZD
$2,900 USD
View
Price last confirmed 11 days ago
Most Expensive
B
Brilliant Earth
21434362A · Oct 29
$5,589 NZD
$3,150 USD
View
17 more retailers have this diamond
Prices start from $621 NZDSave up to $4,968 NZD

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
$621 NZD