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Cushion|Lab Grown|IGI

1.00ct E SI1 Cushion Lab Grown Diamond

ID • E/SI1 • IGI LG851605828

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG851605828

Diamond specifications and retailer prices

From $382 NZD
As of November 4, 2026
Save $1,975 NZD (84%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $2,357 NZD at MOH London · As of November 2, 2026
View at MOH London

About this 1ct lab-grown cushion diamond

This 1ct lab-grown cushion sits in the classic one-carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG851605828 or 851605828. Listed at 6 retailers as of November 2, 2026, with prices from $382 to $2,357, a $1,975 spread on the same certified stone. MOH London lists it at $2,357. 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

1.00
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.6°
Pavilion angle37°
OriginLab Grown
Grading LabIGI
CertificateIGI LG851605828
Dimensions7.05 × 5.15 × 3.41 mm
L/W Ratio1.37
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.05 mm5.15 mm1.00 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG851605828
Side View
Table 69.0%Crown 34.6°Girdle: MED-THKPavilion 37°Culet: NoneDepth 66.2%

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: Nov 4
Current: $2,357 NZD|Low: $382 NZD|High: $2,357 NZD|Avg: $804 NZD
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 6, 2026
Retailer 6$382 NZD
Retailer 2$464 NZD
Retailer 4$503 NZD
Retailer 3$536 NZD
Retailer 5$1,008 NZD
MOH London$2,357 NZD

8 data points across 6 retailers

6 retailers$382 NZD to $2,357 NZD

B+
Cheapest Retailer
-
$382 NZD
A
Retailer 2
-
$464 NZD
View
A
Retailer 3
-
$503 NZD
View
A
Retailer 4
-
$536 NZD
View
B
Retailer 5
-
$1,008 NZD
View
Most Expensive
B
MOH London
LG851605828 · Nov 2
$2,357 NZD
£1,029 GBP
View
5 more retailers have this diamond
Prices start from $382 NZDSave up to $1,975 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
1.00ct Cushion
$382 NZD