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Cushion|Lab Grown|IGI

1.00ct E SI1 Cushion Lab Grown Diamond

GD • E/SI1 • IGI LG766659411

Shape and cutting style on the report: Square cushion modified brilliant

Certificate IGI LG766659411

Diamond specifications and retailer prices

From €254 EUR
$284 USD
As of October 30, 2026
Save €474 EUR (65%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: €729 EUR at MOH London · As of October 29, 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 standard cut grade and certified by IGI LG766659411 or 766659411. Listed at 8 retailers as of October 29, 2026, with prices from €254 to €729, a €474 spread on the same certified stone. MOH London lists it at €729. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.00
Carat
E
Colour
SI1
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle31.9°
Pavilion angle44.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG766659411
Dimensions5.57 × 5.50 × 4.04 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
5.57 mm5.50 mm1.00 ctE / SI1
OriginLab Grown
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG766659411
Side View
Table 63.0%Crown 31.9°Girdle: MED-THKPavilion 44.9°Culet: NoneDepth 73.5%

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: Oct 30
Current: €729 EUR|Low: €250 EUR|High: €734 EUR|Avg: €382 EUR|-0.8%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 31, 2026
Retailer 8€254 EUR
Retailer 3€263 EUR
Retailer 2€272 EUR
Retailer 6€290 EUR
Retailer 4€295 EUR
Retailer 7€439 EUR
Retailer 5€549 EUR
MOH London€729 EUR

31 data points across 8 retailers

8 retailers€254 EUR to €729 EUR

B+
Cheapest Retailer
-
€254 EUR
$284 USD
A
Retailer 2
-
€263 EUR
£231 GBP
View
B+
Retailer 3
-
€272 EUR
View
B+
Retailer 4
-
€290 EUR
$324 USD
View
B+
Retailer 5
-
€295 EUR
£259 GBP
View
Retailer 6
-
€439 EUR
$490 USD
View
Price last confirmed 31 days ago
B
Retailer 7
-
€549 EUR
$613 USD
View
Most Expensive
B
MOH London
LG766659411 · Oct 29
€729 EUR
£641 GBP
View
7 more retailers have this diamond
Prices start from €254 EURSave up to €474 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
1.00ct Cushion
€254 EUR