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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 $272 SGD
As of November 4, 2026
Save $1,403 SGD (84%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $1,675 SGD 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 $272 to $1,675, a $1,403 spread on the same certified stone. MOH London lists it at $1,675. 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
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: $1,675 SGD|Low: $272 SGD|High: $1,675 SGD|Avg: $571 SGD
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 6, 2026
Retailer 6$272 SGD
Retailer 2$329 SGD
Retailer 4$358 SGD
Retailer 3$381 SGD
Retailer 5$716 SGD
MOH London$1,675 SGD

8 data points across 6 retailers

6 retailers$272 SGD to $1,675 SGD

B+
Cheapest Retailer
-
$272 SGD
A
Retailer 2
-
$329 SGD
View
A
Retailer 3
-
$358 SGD
View
A
Retailer 4
-
$381 SGD
View
B
Retailer 5
-
$716 SGD
View
Most Expensive
B
MOH London
LG851605828 · Nov 2
$1,675 SGD
£1,029 GBP
View
5 more retailers have this diamond
Prices start from $272 SGDSave up to $1,403 SGD

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
$272 SGD