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Cushion|Lab Grown|IGI

1.52ct D SI1 Cushion Lab Grown Diamond

ID • D/SI1 • IGI LG537215526

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG537215526

Diamond specifications and retailer prices

From $428 NZD
As of November 6, 2026
Save $1,881 NZD (81%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $2,309 NZD at Brilliant Earth · As of November 5, 2026
View at Brilliant Earth

About this 1.52ct lab-grown cushion diamond

This 1.52ct lab-grown cushion sits in the one-and-a-half to two carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG537215526 or 537215526. Listed at 13 retailers as of November 5, 2026, with prices from $428 to $2,309, a $1,881 spread on the same certified stone. Brilliant Earth lists it at $2,309. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.52
Carat
D
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.5°
Pavilion angle36.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG537215526
Dimensions6.50 × 6.50 × 4.42 mm
L/W Ratio1.00
Girdle conditionFaceted
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
6.50 mm6.50 mm1.52 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG537215526
Side View
Table 61.5%Crown 36.5°Girdle: MED-THKPavilion 36.4°Culet: NoneDepth 68.0%

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: Nov 6
Current: $2,309 NZD|Low: $428 NZD|High: $2,363 NZD|Avg: $1,163 NZD|-2.3%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 10$428 NZD
Retailer 6$473 NZD
Retailer 9$640 NZD
Retailer 2$860 NZD
Retailer 3$866 NZD
Retailer 8$906 NZD
Retailer 4$1,241 NZD
Retailer 7$1,858 NZD
Retailer 5$1,896 NZD
Brilliant Earth$2,309 NZD

42 data points across 10 retailers

13 retailers$428 NZD to $2,309 NZD

A
Cheapest Retailer
-
$428 NZD
Final sale: no returns
Retailer 2
-
$473 NZD
View
Price last confirmed 13 days ago
B+
Retailer 3
-
$640 NZD
View
A
Retailer 4
-
$860 NZD
View
A
Retailer 5
-
$866 NZD
View
A
Retailer 6
-
$906 NZD
View
B+
Retailer 7
-
$1,241 NZD
View
B+
Retailer 8
-
$1,541 NZD
View
B+
Retailer 9
-
$1,616 NZD
View
Retailer 10
-
$1,858 NZD
View
Price last confirmed 17 days ago
B
Retailer 11
-
$1,896 NZD
View
B
Retailer 12
-
$2,074 NZD
View
Most Expensive
B
Brilliant Earth
16146178A · Nov 5
$2,309 NZD
$1,280 USD
View
12 more retailers have this diamond
Prices start from $428 NZDSave up to $1,881 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
1.52ct Cushion
$428 NZD