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Cushion|Lab Grown|IGI

1.11ct D SI1 Cushion Lab Grown Diamond

ID • D/SI1 • IGI LG594330270

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG594330270

Diamond specifications and retailer prices

From €298 EUR
As of October 31, 2026
Save €567 EUR (66%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: €865 EUR at MOH London · As of November 1, 2026
View at MOH London

About this 1.11ct lab-grown cushion diamond

This 1.11ct lab-grown cushion sits in the classic one-carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG594330270 or 594330270. Listed at 9 retailers as of October 31, 2026, with prices from €298 to €865, a €567 spread on the same certified stone. MOH London lists it at €865. 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

1.11
Carat
D
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.7°
Pavilion angle40.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG594330270
Dimensions6.09 × 6.06 × 4.00 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
6.09 mm6.06 mm1.11 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG594330270
Side View
Table 64.0%Crown 35.7°Girdle: MediumPavilion 40.1°Culet: NoneDepth 66.0%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 31
Current: €865 EUR|Low: €149 EUR|High: €967 EUR|Avg: €426 EUR|+11.9%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 2, 2026
Retailer 9€149 EUR
Retailer 5€185 EUR
Retailer 3€298 EUR
Retailer 2€329 EUR
Retailer 10€332 EUR
Retailer 8€332 EUR
Retailer 7€340 EUR
Retailer 6€472 EUR
Retailer 4€618 EUR
MOH London€865 EUR

39 data points across 10 retailers

9 retailers€298 EUR to €865 EUR

Retailer 1
-
€185 EUR
$207 USD
Price last confirmed 8 days ago
A
Retailer 2
-
€298 EUR
View
A
Retailer 3
-
€329 EUR
£289 GBP
View
Retailer 4
-
€332 EUR
£292 GBP
View
Price last confirmed 24 days ago
A
Retailer 5
-
€332 EUR
$371 USD
View
A
Retailer 6
-
€340 EUR
$380 USD
View
B+
Retailer 7
-
€472 EUR
$527 USD
View
B+
Retailer 8
-
€618 EUR
$690 USD
View
Most Expensive
B
MOH London
LG594330270 · Nov 1
€865 EUR
£761 GBP
View
8 more retailers have this diamond
Prices start from €298 EURSave up to €567 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
1.11ct Cushion
€298 EUR