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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 $470 NZD
$265 USD
As of October 30, 2026
Save $3,770 NZD (89%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: $4,241 NZD 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 $470 to $4,241, a $3,770 spread on the same certified stone. Brilliant Earth lists it at $4,241. 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: $4,241 NZD|Low: $452 NZD|High: $4,294 NZD|Avg: $1,482 NZD|+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$470 NZD
Retailer 5$584 NZD
Retailer 2$618 NZD
Retailer 3$784 NZD
Retailer 12$869 NZD
Retailer 11$1,003 NZD
Retailer 8$1,043 NZD
Retailer 7$1,119 NZD
Retailer 10$1,421 NZD
Retailer 14$1,434 NZD
Retailer 6$1,877 NZD
Retailer 9$2,353 NZD
Retailer 13$3,256 NZD
Brilliant Earth$4,241 NZD

34 data points across 14 retailers

24 retailers$470 NZD to $4,241 NZD

A
Cheapest Retailer
-
$470 NZD
$265 USD
A
Retailer 2
-
$527 NZD
$297 USD
View
Final sale: no returns
A
Retailer 3
-
$546 NZD
$308 USD
View
A
Retailer 4
-
$584 NZD
$329 USD
View
A
Retailer 5
-
$584 NZD
$329 USD
View
A
Retailer 6
-
$618 NZD
£274 GBP
View
A
Retailer 7
-
$784 NZD
$442 USD
View
A
Retailer 8
-
$869 NZD
$490 USD
View
A
Retailer 9
-
$1,003 NZD
ZAR 9,136 ZAR
View
A
Retailer 10
-
$1,040 NZD
$586 USD
View
A
Retailer 11
-
$1,043 NZD
€560 EUR
View
A
Retailer 12
-
$1,119 NZD
£496 GBP
View
Retailer 13
-
$1,419 NZD
A$1,230 AUD
View
Price last confirmed 35 days ago
A
Retailer 14
-
$1,421 NZD
A$1,232 AUD
View
B+
Retailer 15
-
$1,434 NZD
$808 USD
View
B+
Retailer 16
-
$1,746 NZD
$984 USD
View
B+
Retailer 17
-
$1,877 NZD
$1,058 USD
View
B+
Retailer 18
-
$1,968 NZD
$1,109 USD
View
B+
Retailer 19
-
$2,353 NZD
£1,044 GBP
View
B
Retailer 20
-
$2,488 NZD
$1,402 USD
View
Retailer 21
-
$3,256 NZD
$1,835 USD
View
Price last confirmed 13 days ago
Retailer 22
-
$3,473 NZD
$1,958 USD
View
Price last confirmed 83 days ago
Retailer 23
-
$3,886 NZD
$2,190 USD
View
Price last confirmed 24 days ago
Most Expensive
B
Brilliant Earth
21313421A · Oct 31
$4,241 NZD
$2,390 USD
View
23 more retailers have this diamond
Prices start from $470 NZDSave up to $3,770 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
1.37ct Radiant
$470 NZD