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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 $412 AUD
As of November 6, 2026
Save $1,405 AUD (77%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $1,817 AUD 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 $412 to $1,817, a $1,405 spread on the same certified stone. MOH London lists it at $1,817. 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

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: $1,817 AUD|Low: $456 AUD|High: $1,848 AUD|Avg: $989 AUD|-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$456 AUD
Retailer 6$506 AUD
Retailer 4$611 AUD
Retailer 10$691 AUD
Retailer 8$814 AUD
Retailer 7$859 AUD
Retailer 2$966 AUD
Retailer 9$1,158 AUD
Retailer 3$1,499 AUD
Retailer 5$1,618 AUD
Retailer 11$1,674 AUD
MOH London$1,817 AUD

40 data points across 12 retailers

16 retailers$412 AUD to $1,817 AUD

A
Cheapest Retailer
-
$412 AUD
Final sale: no returns
A
Retailer 2
-
$456 AUD
View
A
Retailer 3
-
$506 AUD
View
B+
Retailer 4
-
$611 AUD
View
A
Retailer 5
-
$691 AUD
View
A
Retailer 6
-
$760 AUD
View
A
Retailer 7
-
$814 AUD
View
B+
Retailer 8
-
$840 AUD
View
A
Retailer 9
-
$859 AUD
View
B+
Retailer 10
-
$966 AUD
View
B+
Retailer 11
-
$1,158 AUD
View
Retailer 12
-
$1,499 AUD
View
Price last confirmed 17 days ago
B
Retailer 13
-
$1,540 AUD
View
B
Retailer 14
-
$1,618 AUD
View
B
Retailer 15
-
$1,674 AUD
View
Most Expensive
B
MOH London
LG529245188 · Nov 7
$1,817 AUD
£983 GBP
View
15 more retailers have this diamond
Prices start from $412 AUDSave up to $1,405 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
1.53ct Cushion
$412 AUD