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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 €200 EUR
$224 USD
As of November 1, 2026
Save €1,748 EUR (90%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: €1,948 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 October 27, 2026, with prices from €200 to €1,948, a €1,748 spread on the same certified stone. Queensmith lists it at €1,948. 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
Color
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 1
Current: €384 EUR|Low: €200 EUR|High: €1,854 EUR|Avg: €675 EUR|-0.9%
Retailer 1
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Retailer 19
November 1, 2026
Retailer 9€200 EUR
Retailer 3€222 EUR
Retailer 18€251 EUR
Retailer 5€305 EUR
Retailer 14€375 EUR
Retailer 1€384 EUR
Retailer 13€408 EUR
Retailer 4€440 EUR
Retailer 19€544 EUR
Retailer 2€550 EUR
Retailer 7€705 EUR
Retailer 10€726 EUR
Retailer 11€754 EUR
Retailer 8€762 EUR
Retailer 16€924 EUR
Retailer 12€1,039 EUR
Retailer 6€1,067 EUR
Retailer 17€1,159 EUR
Retailer 15€1,320 EUR

39 data points across 19 retailers

21 retailers€200 EUR to €1,948 EUR

A
Cheapest Retailer
-
€200 EUR
$224 USD
Final sale: no returns
Retailer 2
-
€222 EUR
$249 USD
View
Price last confirmed 8 days ago
A
Retailer 3
-
€251 EUR
HK$2,200 HKD
View
B+
Retailer 4
-
€305 EUR
$342 USD
View
A
Retailer 5
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€375 EUR
View
A
Retailer 6
-
€384 EUR
ZAR 6,953 ZAR
View
A
Retailer 7
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€408 EUR
£360 GBP
View
A
Retailer 8
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€440 EUR
$494 USD
View
A
Retailer 9
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€544 EUR
A$938 AUD
View
A
Retailer 10
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€550 EUR
$617 USD
View
A
Retailer 11
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€705 EUR
$791 USD
View
A
Retailer 12
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€726 EUR
SGD 1,100 SGD
View
A
Retailer 13
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€754 EUR
$846 USD
View
A
Retailer 14
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€762 EUR
$855 USD
View
A
Retailer 15
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€924 EUR
A$1,595 AUD
View
B+
Retailer 16
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€1,039 EUR
£918 GBP
View
B+
Retailer 17
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€1,067 EUR
$1,197 USD
View
B+
Retailer 18
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€1,159 EUR
$1,300 USD
View
Retailer 19
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€1,181 EUR
$1,325 USD
View
Price last confirmed 39 days ago
B+
Retailer 20
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€1,320 EUR
$1,480 USD
View
Most Expensive
B
Queensmith
LG655426099 · Oct 27
€1,948 EUR
£1,720 GBP
View
20 more retailers have this diamond
Prices start from €200 EURSave up to €1,748 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
€200 EUR