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Cushion|Lab Grown|IGI

1.53ct I SI1 Cushion Lab Grown Diamond

ID • I/SI1 • IGI LG425067812

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG425067812

Diamond specifications and retailer prices

From $1,526 NZD
$860 USD
As of October 31, 2026
Save $7,210 NZD (83%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $8,736 NZD at MOH London · As of November 1, 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 I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG425067812 or 425067812. Listed at 6 retailers as of October 31, 2026, with prices from $1,526 to $8,736, a $7,210 spread on the same certified stone. MOH London lists it at $8,736. 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
I
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle36.8°
Pavilion angle41.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG425067812
Dimensions7.06 × 6.82 × 4.55 mm
L/W Ratio1.04
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
7.06 mm6.82 mm1.53 ctI / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG425067812
Side View
Table 57.0%Crown 36.8°Girdle: MED-STKPavilion 41.6°Culet: NoneDepth 66.7%

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: Oct 31
Current: $8,736 NZD|Low: $1,526 NZD|High: $8,842 NZD|Avg: $4,392 NZD
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 1, 2026
Retailer 2$1,526 NZD
Retailer 5$2,622 NZD
Retailer 4$2,720 NZD
Retailer 6$3,025 NZD
Retailer 7$3,740 NZD
Retailer 3$4,301 NZD
Retailer 8$7,785 NZD
MOH London$8,736 NZD

12 data points across 8 retailers

6 retailers$1,526 NZD to $8,736 NZD

A
Cheapest Retailer
-
$1,526 NZD
$860 USD
B
Retailer 2
-
$2,622 NZD
$1,478 USD
View
Final sale: no returns
Retailer 3
-
$2,720 NZD
$1,533 USD
View
Price last confirmed 20 days ago
B
Retailer 4
-
$3,025 NZD
$1,705 USD
View
B
Retailer 5
-
$4,301 NZD
$2,424 USD
View
Most Expensive
B
MOH London
LG425067812 · Nov 1
$8,736 NZD
£3,877 GBP
View
5 more retailers have this diamond
Prices start from $1,526 NZDSave up to $7,210 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
$1,526 NZD