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Cushion|Lab Grown|IGI

1.09ct E FL Cushion Lab Grown Diamond

GD • E/FL • IGI LG840635024

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG840635024

Diamond specifications and retailer prices

From €368 EUR
£324 GBP
As of October 30, 2026
Save €1,372 EUR (79%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: €1,740 EUR at Helzberg Diamonds · As of October 30, 2026
View at Helzberg Diamonds

About this 1.09ct lab-grown cushion diamond

This 1.09ct lab-grown cushion sits in the classic one-carat band, graded E colour (colourless) and FL clarity (flawless or internally-flawless), with a standard cut grade and certified by IGI LG840635024 or 840635024. Listed at 15 retailers as of October 30, 2026, with prices from €368 to €1,740, a €1,372 spread on the same certified stone. Helzberg Diamonds lists it at €1,740. 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

1.09
Carat
E
Colour
FL
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.9°
Pavilion angle35.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG840635024
Dimensions7.59 × 5.18 × 3.47 mm
L/W Ratio1.47
Girdle conditionFaceted
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
7.59 mm5.18 mm1.09 ctE / FL
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG840635024
Side View
Table 63.0%Crown 35.9°Girdle: STK-THKPavilion 35.7°Culet: NoneDepth 67.0%

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: Oct 30
Current: €1,740 EUR|Low: €367 EUR|High: €1,969 EUR|Avg: €982 EUR|-1.3%
Helzberg Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
October 31, 2026
Retailer 10€368 EUR
Retailer 14€524 EUR
Retailer 3€563 EUR
Retailer 5€565 EUR
Retailer 11€581 EUR
Retailer 13€596 EUR
Retailer 15€609 EUR
Retailer 2€613 EUR
Retailer 8€855 EUR
Retailer 6€950 EUR
Retailer 4€1,157 EUR
Retailer 7€1,249 EUR
Retailer 12€1,398 EUR
Retailer 9€1,638 EUR
Helzberg Diamonds€1,740 EUR

15 data points across 15 retailers

15 retailers€368 EUR to €1,740 EUR

A
Cheapest Retailer
-
€368 EUR
£324 GBP
A
Retailer 2
-
€524 EUR
$585 USD
View
A
Retailer 3
-
€563 EUR
$629 USD
View
A
Retailer 4
-
€565 EUR
$631 USD
View
A
Retailer 5
-
€581 EUR
View
A
Retailer 6
-
€596 EUR
ZAR 10,764 ZAR
View
A
Retailer 7
-
€609 EUR
$680 USD
View
A
Retailer 8
-
€613 EUR
£539 GBP
View
B+
Retailer 9
-
€855 EUR
$955 USD
View
B+
Retailer 10
-
€950 EUR
SGD 1,434 SGD
View
B
Retailer 11
-
€1,157 EUR
$1,293 USD
View
Retailer 12
-
€1,249 EUR
$1,395 USD
View
Price last confirmed 12 days ago
B
Retailer 13
-
€1,398 EUR
£1,230 GBP
View
B
Retailer 14
-
€1,638 EUR
$1,830 USD
View
Most Expensive
B
Helzberg Diamonds
ZXZOKGMJLGIK · Oct 30
€1,740 EUR
$1,944 USD
View
14 more retailers have this diamond
Prices start from €368 EURSave up to €1,372 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
1.09ct Cushion
€368 EUR