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Radiant|Lab Grown|IGI

1.37ct E IF Radiant Lab Grown Diamond

EX • E/IF • IGI LG722578619

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

Certificate IGI LG722578619

Diamond specifications and retailer prices

From $377 AUD
$265 USD
As of October 30, 2026
Save $3,025 AUD (89%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: $3,402 AUD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

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 E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG722578619 or 722578619. Listed at 24 retailers as of October 30, 2026, with prices from $377 to $3,402, a $3,025 spread on the same certified stone. Brilliant Earth lists it at $3,402. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.37
Carat
E
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.8°
Pavilion angle33.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG722578619
Dimensions5.50 × 5.50 × 3.65 mm
L/W Ratio1.00
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
5.50 mm5.50 mm1.37 ctE / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG722578619
Side View
Table 66.0%Crown 39.8°Girdle: MediumPavilion 33.6°Culet: NoneDepth 66.4%

Caratlytics Score

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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 30
Current: $3,402 AUD|Low: $363 AUD|High: $3,445 AUD|Avg: $1,196 AUD|+9.1%
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
November 1, 2026
Retailer 4$377 AUD
Retailer 5$468 AUD
Retailer 7$495 AUD
Retailer 3$629 AUD
Retailer 12$698 AUD
Retailer 11$805 AUD
Retailer 9$837 AUD
Retailer 8$898 AUD
Retailer 10$1,140 AUD
Retailer 14$1,150 AUD
Retailer 6$1,506 AUD
Retailer 2$1,878 AUD
Retailer 13$2,612 AUD
Brilliant Earth$3,402 AUD

34 data points across 14 retailers

24 retailers$377 AUD to $3,402 AUD

A
Cheapest Retailer
-
$377 AUD
$265 USD
A
Retailer 2
-
$423 AUD
$297 USD
View
Final sale: no returns
A
Retailer 3
-
$438 AUD
$308 USD
View
Retailer 4
-
$468 AUD
$329 USD
View
Price last confirmed 7 days ago
A
Retailer 5
-
$468 AUD
$329 USD
View
A
Retailer 6
-
$495 AUD
£274 GBP
View
A
Retailer 7
-
$629 AUD
$442 USD
View
A
Retailer 8
-
$698 AUD
$490 USD
View
A
Retailer 9
-
$805 AUD
ZAR 9,136 ZAR
View
A
Retailer 10
-
$834 AUD
$586 USD
View
A
Retailer 11
-
$837 AUD
€560 EUR
View
A
Retailer 12
-
$898 AUD
£496 GBP
View
Retailer 13
-
$1,138 AUD
View
Price last confirmed 35 days ago
A
Retailer 14
-
$1,140 AUD
View
B+
Retailer 15
-
$1,150 AUD
$808 USD
View
B+
Retailer 16
-
$1,401 AUD
$984 USD
View
B+
Retailer 17
-
$1,506 AUD
$1,058 USD
View
B+
Retailer 18
-
$1,579 AUD
$1,109 USD
View
B+
Retailer 19
-
$1,878 AUD
£1,039 GBP
View
B
Retailer 20
-
$1,997 AUD
$1,402 USD
View
B
Retailer 21
-
$2,612 AUD
$1,835 USD
View
Retailer 22
-
$2,787 AUD
$1,958 USD
View
Price last confirmed 84 days ago
Retailer 23
-
$3,118 AUD
$2,190 USD
View
Price last confirmed 24 days ago
Most Expensive
B
Brilliant Earth
21313421A · Oct 31
$3,402 AUD
$2,390 USD
View
23 more retailers have this diamond
Prices start from $377 AUDSave up to $3,025 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
1.37ct Radiant
$377 AUD