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Cushion|Lab Grown|IGI

1.21ct E FL Cushion Lab Grown Diamond

ID • E/FL • IGI LG840632427

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG840632427

Diamond specifications and retailer prices

From €386 EUR
$431 USD
As of October 30, 2026
Save €1,595 EUR (81%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: €1,981 EUR at Helzberg Diamonds · As of October 31, 2026
View at Helzberg Diamonds

About this 1.21ct lab-grown cushion diamond

This 1.21ct lab-grown cushion sits in the classic one-carat band, graded E colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG840632427 or 840632427. Listed at 16 retailers as of October 30, 2026, with prices from €386 to €1,981, a €1,595 spread on the same certified stone. Helzberg Diamonds lists it at €1,981. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.21
Carat
E
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.1°
Pavilion angle35°
OriginLab Grown
Grading LabIGI
CertificateIGI LG840632427
Dimensions7.60 × 5.33 × 3.64 mm
L/W Ratio1.43
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
7.60 mm5.33 mm1.21 ctE / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG840632427
Side View
Table 60.0%Crown 35.1°Girdle: STK-THKPavilion 35°Culet: NoneDepth 68.3%

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: €1,981 EUR|Low: €386 EUR|High: €2,291 EUR|Avg: €1,098 EUR
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
Retailer 16
October 31, 2026
Retailer 3€386 EUR
Retailer 12€453 EUR
Retailer 9€559 EUR
Retailer 5€635 EUR
Retailer 6€679 EUR
Retailer 13€688 EUR
Retailer 14€733 EUR
Retailer 16€746 EUR
Retailer 2€766 EUR
Retailer 10€1,020 EUR
Retailer 7€1,359 EUR
Retailer 8€1,374 EUR
Retailer 4€1,406 EUR
Retailer 11€1,602 EUR
Retailer 15€1,670 EUR
Helzberg Diamonds€1,981 EUR

18 data points across 16 retailers

16 retailers€386 EUR to €1,981 EUR

A
Cheapest Retailer
-
€386 EUR
$431 USD
Final sale: no returns
A
Retailer 2
-
€453 EUR
£398 GBP
View
A
Retailer 3
-
€559 EUR
$625 USD
View
A
Retailer 4
-
€635 EUR
$709 USD
View
A
Retailer 5
-
€679 EUR
$759 USD
View
A
Retailer 6
-
€688 EUR
View
A
Retailer 7
-
€733 EUR
ZAR 13,235 ZAR
View
A
Retailer 8
-
€746 EUR
$833 USD
View
A
Retailer 9
-
€766 EUR
£674 GBP
View
B+
Retailer 10
-
€1,020 EUR
$1,139 USD
View
B+
Retailer 11
-
€1,359 EUR
SGD 2,051 SGD
View
Retailer 12
-
€1,374 EUR
$1,535 USD
View
Price last confirmed 16 days ago
B+
Retailer 13
-
€1,406 EUR
$1,570 USD
View
B+
Retailer 14
-
€1,602 EUR
$1,790 USD
View
B
Retailer 15
-
€1,670 EUR
£1,469 GBP
View
Most Expensive
B
Helzberg Diamonds
ZXZOKGMJIKIN · Oct 31
€1,981 EUR
$2,213 USD
View
15 more retailers have this diamond
Prices start from €386 EURSave up to €1,595 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
1.21ct Cushion
€386 EUR