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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 $645 AUD
$453 USD
As of October 30, 2026
Save $3,085 AUD (83%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $4,128 AUD at Rare Carat · As of October 18, 2026
View at Rare Carat

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 30, 2026, with a 478% 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

1.40
Carat
E
Colour
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
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $4,128 AUD|Low: $645 AUD|High: $4,499 AUD|Avg: $1,783 AUD|-0.5%
Rare Carat
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 30, 2026
Retailer 4$645 AUD
Retailer 6$713 AUD
Retailer 13$764 AUD
Retailer 7$925 AUD
Retailer 9$963 AUD
Retailer 3$1,129 AUD
Retailer 12$1,166 AUD
Retailer 15$1,227 AUD
Retailer 16$1,526 AUD
Retailer 14$1,841 AUD
Retailer 11$1,912 AUD
Retailer 10$2,162 AUD
Retailer 8$2,344 AUD
Retailer 5$2,822 AUD
Retailer 2$3,730 AUD
Rare Carat$4,128 AUD

11 data points across 16 retailers

14 retailers$645 AUD to $3,730 AUD

Retailer 1
-
$552 AUD
$388 USD
Price last confirmed 25 days ago
A
Retailer 2
-
$645 AUD
$453 USD
View
Final sale: no returns
Retailer 3
-
$713 AUD
$501 USD
View
Price last confirmed 27 days ago
Retailer 4
-
$764 AUD
£423 GBP
View
Price last confirmed 24 days ago
A
Retailer 5
-
$963 AUD
€644 EUR
View
Retailer 6
-
$1,129 AUD
$793 USD
View
Price last confirmed 26 days ago
Retailer 7
-
$1,227 AUD
ZAR 13,921 ZAR
View
Price last confirmed 25 days ago
Retailer 8
-
$1,841 AUD
$1,293 USD
View
Price last confirmed 25 days ago
B+
Retailer 9
-
$1,912 AUD
SGD 1,815 SGD
View
B
Retailer 10
-
$2,162 AUD
$1,519 USD
View
Retailer 11
-
$2,344 AUD
$1,647 USD
View
Price last confirmed 25 days ago
Retailer 12
-
$2,822 AUD
£1,561 GBP
View
Price last confirmed 26 days ago
B
Retailer 13
-
$3,730 AUD
$2,620 USD
View
Most Expensive
Rare Carat
JH-247113 · Oct 18
$4,128 AUD
$2,900 USD
View
Price last confirmed 11 days ago
13 more retailers have this diamond
Prices start from $645 AUDSave up to $3,085 AUD

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
$645 AUD