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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 $381 NZD
As of November 6, 2026
Save $2,884 NZD (88%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $3,265 NZD 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 $381 to $3,265, a $2,884 spread on the same certified stone. Do Amore Diamonds lists it at $3,265. 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

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 6
Current: $3,265 NZD|Low: $341 NZD|High: $3,265 NZD|Avg: $1,350 NZD
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 7$381 NZD
Retailer 8$507 NZD
Retailer 5$579 NZD
Retailer 2$770 NZD
Retailer 4$1,219 NZD
Retailer 9$1,495 NZD
Retailer 6$1,786 NZD
Retailer 3$1,860 NZD
Do Amore Diamonds$3,265 NZD

23 data points across 9 retailers

9 retailers$381 NZD to $3,265 NZD

A
Cheapest Retailer
-
$381 NZD
Final sale: no returns
A
Retailer 2
-
$507 NZD
View
B+
Retailer 3
-
$579 NZD
View
A
Retailer 4
-
$770 NZD
View
B+
Retailer 5
-
$1,219 NZD
View
B+
Retailer 6
-
$1,495 NZD
View
Retailer 7
-
$1,786 NZD
View
Price last confirmed 17 days ago
B+
Retailer 8
-
$1,860 NZD
View
Most Expensive
B
Do Amore Diamonds
27-CAF680037 · Nov 6
$3,265 NZD
$1,810 USD
View
8 more retailers have this diamond
Prices start from $381 NZDSave up to $2,884 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
$381 NZD