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Cushion|Lab Grown|IGI

1.57ct I SI2 Cushion Lab Grown Diamond

GD • I/SI2 • IGI LG436045066

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG436045066

Diamond specifications and retailer prices

From $694 NZD
$391 USD
As of November 1, 2026
Save $2,305 NZD (77%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $2,999 NZD at MOH London · As of November 1, 2026
View at MOH London

About this 1.57ct lab-grown cushion diamond

This 1.57ct lab-grown cushion sits in the one-and-a-half to two carat band, graded I colour (near-colourless) and SI2 clarity (slightly-included), with a standard cut grade and certified by IGI LG436045066 or 436045066. Listed at 5 retailers as of November 1, 2026, with prices from $694 to $2,999, a $2,305 spread on the same certified stone. MOH London lists it at $2,999. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.57
Carat
I
Colour
SI2
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.2°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG436045066
Dimensions6.66 × 6.58 × 4.50 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Top View
6.66 mm6.58 mm1.57 ctI / SI2
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG436045066
Side View
Table 62.5%Crown 34.2°Girdle: MED-VTKPavilion 40.8°Culet: NoneDepth 68.4%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $2,999 NZD|Low: $676 NZD|High: $3,035 NZD|Avg: $1,587 NZD|-0.2%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 1, 2026
Retailer 5$694 NZD
Retailer 2$768 NZD
Retailer 4$1,224 NZD
Retailer 3$1,233 NZD
Retailer 6$2,399 NZD
MOH London$2,999 NZD

13 data points across 6 retailers

5 retailers$694 NZD to $2,999 NZD

B+
Cheapest Retailer
-
$694 NZD
$391 USD
Final sale: no returns
Retailer 2
-
$768 NZD
$433 USD
View
Price last confirmed 7 days ago
B+
Retailer 3
-
$1,224 NZD
$690 USD
View
B+
Retailer 4
-
$1,233 NZD
$695 USD
View
Most Expensive
B
MOH London
LG436045066 · Nov 1
$2,999 NZD
£1,331 GBP
View
4 more retailers have this diamond
Prices start from $694 NZDSave up to $2,305 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.

B+
1.57ct Cushion
$694 NZD