Cushion|Lab Grown|IGI

1.05ct E SI1 Cushion Lab Grown Diamond

ID • E/SI1 • IGI LG733543632

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG733543632

Diamond specifications and retailer prices

From €278 EUR
$311 USD
As of October 30, 2026
Save €178 EUR (39%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: €797 EUR at MOH London · As of October 25, 2026
View at MOH London

About this 1.05ct lab-grown cushion diamond

This 1.05ct 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 LG733543632 or 733543632. Listed at 8 retailers as of October 30, 2026, with a 64% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

1.05
Carat
E
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.7°
Pavilion angle32.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG733543632
Dimensions6.75 × 5.31 × 3.45 mm
L/W Ratio1.27
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.75 mm5.31 mm1.05 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG733543632
Side View
Table 65.0%Crown 36.7°Girdle: MED-THKPavilion 32.1°Culet: NoneDepth 65.0%

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: €797 EUR|Low: €256 EUR|High: €805 EUR|Avg: €394 EUR|+1.2%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 1, 2026
Retailer 6€278 EUR
Retailer 3€293 EUR
Retailer 2€297 EUR
Retailer 7€311 EUR
Retailer 4€323 EUR
Retailer 5€456 EUR
Retailer 8€461 EUR
MOH London€797 EUR

35 data points across 8 retailers

8 retailers€278 EUR to €456 EUR

A
Cheapest Retailer
-
€278 EUR
$311 USD
A
Retailer 2
-
€293 EUR
View
A
Retailer 3
-
€297 EUR
£261 GBP
View
A
Retailer 4
-
€311 EUR
$348 USD
View
A
Retailer 5
-
€323 EUR
£284 GBP
View
B+
Retailer 6
-
€456 EUR
$510 USD
View
Retailer 7
-
€461 EUR
$515 USD
View
Price last confirmed 33 days ago
Most Expensive
MOH London
LG733543632 · Oct 25
€797 EUR
£701 GBP
View
Price last confirmed 7 days ago
7 more retailers have this diamond
Prices start from €278 EURSave up to €178 EUR

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
1.05ct Cushion
€278 EUR