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Cushion|Lab Grown|IGI

1.53ct D SI1 Cushion Lab Grown Diamond

ID • D/SI1 • IGI LG529245188

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG529245188

Diamond specifications and retailer prices

From $511 NZD
As of November 6, 2026
Save $1,742 NZD (77%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $2,252 NZD at MOH London · As of November 7, 2026
View at MOH London

About this 1.53ct lab-grown cushion diamond

This 1.53ct 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 LG529245188 or 529245188. Listed at 16 retailers as of November 6, 2026, with prices from $511 to $2,252, a $1,742 spread on the same certified stone. MOH London lists it at $2,252. 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

1.53
Carat
D
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.2°
Pavilion angle41.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG529245188
Dimensions6.65 × 6.60 × 4.50 mm
L/W Ratio1.01
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
6.65 mm6.60 mm1.53 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG529245188
Side View
Table 64.0%Crown 35.2°Girdle: MED-THKPavilion 41.2°Culet: NoneDepth 68.2%

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: Nov 6
Current: $2,252 NZD|Low: $565 NZD|High: $2,291 NZD|Avg: $1,225 NZD|-1.6%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 7, 2026
Retailer 12$565 NZD
Retailer 6$628 NZD
Retailer 4$758 NZD
Retailer 10$857 NZD
Retailer 8$1,008 NZD
Retailer 7$1,064 NZD
Retailer 2$1,198 NZD
Retailer 9$1,436 NZD
Retailer 3$1,858 NZD
Retailer 5$2,006 NZD
Retailer 11$2,074 NZD
MOH London$2,252 NZD

40 data points across 12 retailers

16 retailers$511 NZD to $2,252 NZD

A
Cheapest Retailer
-
$511 NZD
Final sale: no returns
A
Retailer 2
-
$565 NZD
View
A
Retailer 3
-
$628 NZD
View
B+
Retailer 4
-
$758 NZD
View
A
Retailer 5
-
$857 NZD
View
A
Retailer 6
-
$942 NZD
View
A
Retailer 7
-
$1,008 NZD
View
B+
Retailer 8
-
$1,041 NZD
View
A
Retailer 9
-
$1,064 NZD
View
B+
Retailer 10
-
$1,198 NZD
View
B+
Retailer 11
-
$1,436 NZD
View
Retailer 12
-
$1,858 NZD
View
Price last confirmed 17 days ago
B
Retailer 13
-
$1,909 NZD
View
B
Retailer 14
-
$2,006 NZD
View
B
Retailer 15
-
$2,074 NZD
View
Most Expensive
B
MOH London
LG529245188 · Nov 7
$2,252 NZD
£983 GBP
View
15 more retailers have this diamond
Prices start from $511 NZDSave up to $1,742 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
1.53ct Cushion
$511 NZD