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Cushion|Lab Grown|IGI

1.53ct D SI1 Cushion Lab Grown Diamond

ID • D/SI1 • IGI LG815642059

Shape and cutting style on the report: Square cushion modified brilliant

Certificate IGI LG815642059

Diamond specifications and retailer prices

From $307 AUD
As of November 6, 2026
Save $2,327 AUD (88%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $2,634 AUD at Do Amore Diamonds · As of November 6, 2026
View at Do Amore Diamonds

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 LG815642059 or 815642059. Listed at 9 retailers as of November 6, 2026, with prices from $307 to $2,634, a $2,327 spread on the same certified stone. Do Amore Diamonds lists it at $2,634. 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 angle34.1°
Pavilion angle37.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG815642059
Dimensions6.46 × 6.42 × 4.25 mm
L/W Ratio1.01
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.46 mm6.42 mm1.53 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG815642059
Side View
Table 63.0%Crown 34.1°Girdle: STK-THKPavilion 37.2°Culet: NoneDepth 66.2%

Caratlytics Score

How it works →
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: $2,634 AUD|Low: $275 AUD|High: $2,634 AUD|Avg: $1,095 AUD
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 7$307 AUD
Retailer 8$409 AUD
Retailer 5$467 AUD
Retailer 2$621 AUD
Retailer 4$984 AUD
Retailer 9$1,207 AUD
Retailer 6$1,441 AUD
Retailer 3$1,501 AUD
Do Amore Diamonds$2,634 AUD

24 data points across 9 retailers

9 retailers$307 AUD to $2,634 AUD

A
Cheapest Retailer
-
$307 AUD
Final sale: no returns
A
Retailer 2
-
$409 AUD
View
B+
Retailer 3
-
$467 AUD
View
A
Retailer 4
-
$621 AUD
View
B+
Retailer 5
-
$984 AUD
View
B+
Retailer 6
-
$1,207 AUD
View
Retailer 7
-
$1,441 AUD
View
Price last confirmed 16 days ago
B+
Retailer 8
-
$1,501 AUD
View
Most Expensive
B
Do Amore Diamonds
27-CAF680037 · Nov 6
$2,634 AUD
$1,810 USD
View
8 more retailers have this diamond
Prices start from $307 AUDSave up to $2,327 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
$307 AUD