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Cushion|Lab Grown|IGI

1.21ct F IF Cushion Lab Grown Diamond

EX • F/IF • IGI LG655426099

Shape and cutting style on the report: Cushion brilliant

Certificate IGI LG655426099

Diamond specifications and retailer prices

From €201 EUR
As of November 6, 2026
Save €1,125 EUR (85%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: €1,956 EUR at Queensmith · As of October 27, 2026
View at Queensmith

About this 1.21ct lab-grown cushion diamond

This 1.21ct lab-grown cushion sits in the classic one-carat band, graded F colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG655426099 or 655426099. Listed at 21 retailers as of November 6, 2026, with a 561% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.21
Carat
F
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.2°
Pavilion angle36.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG655426099
Dimensions7.13 × 5.77 × 3.77 mm
L/W Ratio1.24
Girdle conditionFaceted
Culet sizePointed
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
7.13 mm5.77 mm1.21 ctF / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG655426099
Side View
Table 60.0%Crown 34.2°Girdle: MED-STKPavilion 36.6°Culet: NoneDepth 65.3%

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: Nov 6
Current: €376 EUR|Low: €201 EUR|High: €1,863 EUR|Avg: €673 EUR|-1.2%
Retailer 1
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Retailer 19
November 6, 2026
Retailer 9€201 EUR
Retailer 3€223 EUR
Retailer 19€252 EUR
Retailer 5€306 EUR
Retailer 1€376 EUR
Retailer 12€378 EUR
Retailer 13€405 EUR
Retailer 4€442 EUR
Retailer 15€544 EUR
Retailer 2€553 EUR
Retailer 7€708 EUR
Retailer 10€729 EUR
Retailer 11€758 EUR
Retailer 8€765 EUR
Retailer 17€928 EUR
Retailer 14€1,041 EUR
Retailer 6€1,071 EUR
Retailer 18€1,164 EUR
Retailer 16€1,326 EUR

41 data points across 19 retailers

21 retailers€201 EUR to €1,326 EUR

A
Cheapest Retailer
-
€201 EUR
Final sale: no returns
Retailer 2
-
€223 EUR
View
Price last confirmed 13 days ago
A
Retailer 3
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€252 EUR
View
B+
Retailer 4
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€306 EUR
View
A
Retailer 5
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€376 EUR
View
A
Retailer 6
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€378 EUR
View
A
Retailer 7
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€405 EUR
View
A
Retailer 8
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€442 EUR
View
A
Retailer 9
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€544 EUR
View
A
Retailer 10
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€553 EUR
View
A
Retailer 11
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€708 EUR
View
A
Retailer 12
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€729 EUR
View
A
Retailer 13
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€758 EUR
View
A
Retailer 14
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€765 EUR
View
Retailer 15
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€928 EUR
View
Price last confirmed 9 days ago
B+
Retailer 16
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€1,041 EUR
View
B+
Retailer 17
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€1,071 EUR
View
B+
Retailer 18
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€1,164 EUR
View
Retailer 19
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€1,187 EUR
View
Price last confirmed 44 days ago
B+
Retailer 20
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€1,326 EUR
View
Most Expensive
Queensmith
LG655426099 · Oct 27
€1,956 EUR
£1,720 GBP
View
Price last confirmed 10 days ago
20 more retailers have this diamond
Prices start from €201 EURSave up to €1,125 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
€201 EUR