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Cushion|Lab Grown|IGI

1.50ct E IF Cushion Lab Grown Diamond

ID • E/IF • IGI LG836616360

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG836616360

Diamond specifications and retailer prices

From $797 NZD
£354 GBP
As of October 30, 2026
Save $4,277 NZD (84%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $5,074 NZD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 1.5ct lab-grown cushion diamond

This 1.5ct lab-grown cushion sits in the one-and-a-half to two carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG836616360 or 836616360. Listed at 16 retailers as of October 29, 2026, with prices from $797 to $5,074, a $4,277 spread on the same certified stone. Brilliant Earth lists it at $5,074. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.50
Carat
E
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle32°
OriginLab Grown
Grading LabIGI
CertificateIGI LG836616360
Dimensions8.51 × 5.81 × 3.70 mm
L/W Ratio1.46
Girdle conditionFaceted
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
8.51 mm5.81 mm1.50 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG836616360
Side View
Table 61.0%Crown 35°Girdle: STK-THKPavilion 32°Culet: NoneDepth 63.7%

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: $5,074 NZD|Low: $794 NZD|High: $5,074 NZD|Avg: $2,385 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
Retailer 15
Retailer 16
October 30, 2026
Retailer 2$797 NZD
Retailer 15$1,171 NZD
Retailer 16$1,222 NZD
Retailer 4$1,240 NZD
Retailer 14$1,326 NZD
Retailer 9$1,388 NZD
Retailer 10$1,548 NZD
Retailer 12$1,791 NZD
Retailer 5$1,813 NZD
Retailer 6$2,555 NZD
Retailer 13$2,697 NZD
Retailer 11$3,033 NZD
Retailer 8$3,198 NZD
Retailer 7$4,248 NZD
Retailer 3$4,249 NZD
Brilliant Earth$5,074 NZD

11 data points across 16 retailers

16 retailers$797 NZD to $5,074 NZD

A
Cheapest Retailer
-
$797 NZD
£354 GBP
A
Retailer 2
-
$1,171 NZD
$660 USD
View
A
Retailer 3
-
$1,222 NZD
$689 USD
View
A
Retailer 4
-
$1,240 NZD
$699 USD
View
A
Retailer 5
-
$1,326 NZD
ZAR 12,076 ZAR
View
A
Retailer 6
-
$1,388 NZD
£616 GBP
View
A
Retailer 7
-
$1,548 NZD
€831 EUR
View
A
Retailer 8
-
$1,791 NZD
A$1,553 AUD
View
A
Retailer 9
-
$1,813 NZD
$1,022 USD
View
B+
Retailer 10
-
$2,555 NZD
$1,440 USD
View
B+
Retailer 11
-
$2,697 NZD
$1,520 USD
View
B+
Retailer 12
-
$3,033 NZD
£1,346 GBP
View
B+
Retailer 13
-
$3,198 NZD
SGD 2,436 SGD
View
B
Retailer 14
-
$4,248 NZD
$2,394 USD
View
Retailer 15
-
$4,249 NZD
$2,395 USD
View
Price last confirmed 9 days ago
Most Expensive
B
Brilliant Earth
22192118A · Oct 29
$5,074 NZD
$2,860 USD
View
15 more retailers have this diamond
Prices start from $797 NZDSave up to $4,277 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
1.50ct Cushion
$797 NZD