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Cushion|Lab Grown|IGI

1.55ct E SI1 Cushion Lab Grown Diamond

ID • E/SI1 • IGI LG549293769

Shape and cutting style on the report: Cushion brilliant

Certificate IGI LG549293769

Diamond specifications and retailer prices

From $589 NZD
$332 USD
As of October 30, 2026
Save $82 NZD (12%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $1,949 NZD at MOH London · As of October 21, 2026
View at MOH London

About this 1.55ct lab-grown cushion diamond

This 1.55ct lab-grown cushion sits in the one-and-a-half to two carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG549293769 or 549293769. Listed at 5 retailers as of October 30, 2026, with a relatively tight 14% spread, which is unusual at this carat range and suggests competitive pricing across the listings. 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

1.55
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.7°
Pavilion angle41.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG549293769
Dimensions8.26 × 6.02 × 4.07 mm
L/W Ratio1.37
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
8.26 mm6.02 mm1.55 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG549293769
Side View
Table 60.0%Crown 32.7°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 67.6%

Caratlytics Score

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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: Oct 30
Current: $1,949 NZD|Low: $589 NZD|High: $1,963 NZD|Avg: $1,109 NZD|-0.6%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
October 24, 2026
Retailer 4$589 NZD
Retailer 2$671 NZD
Retailer 3$868 NZD
Retailer 6$882 NZD
Retailer 5$1,860 NZD
MOH London$1,949 NZD

36 data points across 6 retailers

5 retailers$589 NZD to $671 NZD

B+
Cheapest Retailer
-
$589 NZD
$332 USD
A
Retailer 2
-
$671 NZD
$378 USD
View
Retailer 3
-
$868 NZD
£385 GBP
View
Price last confirmed 8 days ago
Retailer 4
-
$1,860 NZD
$1,049 USD
View
Price last confirmed 7 days ago
Most Expensive
MOH London
LG549293769 · Oct 21
$1,949 NZD
£865 GBP
View
Price last confirmed 10 days ago
4 more retailers have this diamond
Prices start from $589 NZDSave up to $82 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
1.55ct Cushion
$589 NZD