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Cushion|Lab Grown|IGI

1.09ct E IF Cushion Lab Grown Diamond

EX • E/IF • IGI LG644488847

Shape and cutting style on the report: Cushion brilliant

Certificate IGI LG644488847

Diamond specifications and retailer prices

From €233 EUR
$260 USD
As of October 30, 2026
Save €1,484 EUR (86%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: €1,717 EUR at Queensmith · As of October 27, 2026
View at Queensmith

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 IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG644488847 or 644488847. Listed at 21 retailers as of October 27, 2026, with prices from €233 to €1,717, a €1,484 spread on the same certified stone. Queensmith lists it at €1,717. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.09
Carat
E
Color
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle31.6°
Pavilion angle35.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG644488847
Dimensions5.57 × 5.57 × 3.50 mm
L/W Ratio1.00
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
5.57 mm5.57 mm1.09 ctE / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG644488847
Side View
Table 57.0%Crown 31.6°Girdle: MED-STKPavilion 35.6°Culet: NoneDepth 62.8%

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: Oct 30
Current: €431 EUR|Low: €233 EUR|High: €1,531 EUR|Avg: €664 EUR|-0.6%
Retailer 1
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Retailer 19
October 31, 2026
Retailer 7€233 EUR
Retailer 2€259 EUR
Retailer 18€286 EUR
Retailer 13€356 EUR
Retailer 1€431 EUR
Retailer 16€445 EUR
Retailer 3€469 EUR
Retailer 12€488 EUR
Retailer 5€583 EUR
Retailer 15€627 EUR
Retailer 17€631 EUR
Retailer 19€653 EUR
Retailer 8€698 EUR
Retailer 6€879 EUR
Retailer 9€898 EUR
Retailer 11€954 EUR
Retailer 14€1,042 EUR
Retailer 4€1,163 EUR
Retailer 10€1,531 EUR

39 data points across 19 retailers

21 retailers€233 EUR to €1,717 EUR

A
Cheapest Retailer
-
€233 EUR
$260 USD
Final sale: no returns
A
Retailer 2
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€259 EUR
$289 USD
View
A
Retailer 3
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€286 EUR
HK$2,500 HKD
View
A
Retailer 4
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€356 EUR
$398 USD
View
A
Retailer 5
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€431 EUR
View
A
Retailer 6
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€445 EUR
ZAR 8,023 ZAR
View
A
Retailer 7
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€469 EUR
$524 USD
View
A
Retailer 8
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€488 EUR
£430 GBP
View
A
Retailer 9
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€533 EUR
$596 USD
View
A
Retailer 10
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€583 EUR
$651 USD
View
A
Retailer 11
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€627 EUR
A$1,078 AUD
View
A
Retailer 12
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€631 EUR
A$1,085 AUD
View
A
Retailer 13
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€653 EUR
$729 USD
View
A
Retailer 14
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€698 EUR
SGD 1,054 SGD
View
B+
Retailer 15
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€879 EUR
$982 USD
View
B+
Retailer 16
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€898 EUR
$1,003 USD
View
Retailer 17
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€954 EUR
A$1,639 AUD
View
Price last confirmed 27 days ago
B+
Retailer 18
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€1,042 EUR
£917 GBP
View
B+
Retailer 19
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€1,163 EUR
$1,299 USD
View
B
Retailer 20
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€1,531 EUR
$1,710 USD
View
Most Expensive
B
Queensmith
LG644488847 · Oct 27
€1,717 EUR
£1,510 GBP
View
20 more retailers have this diamond
Prices start from €233 EURSave up to €1,484 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
€233 EUR