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Cushion|Lab Grown|IGI

4.40ct F SI1 Cushion Lab Grown Diamond

ID • F/SI1 • IGI LG822633154

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG822633154

Diamond specifications and retailer prices

From €588 EUR
£517 GBP
As of October 27, 2026
Save €2,482 EUR (81%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: €3,070 EUR at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 4.4ct lab-grown cushion diamond

This 4.4ct lab-grown cushion sits in the three to five carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG822633154 or 822633154. Listed at 12 retailers as of October 27, 2026, with prices from €588 to €3,070, a €2,482 spread on the same certified stone. Brilliant Earth lists it at €3,070. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

4.40
Carat
F
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.9°
Pavilion angle31.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG822633154
Dimensions11.41 × 8.37 × 5.35 mm
L/W Ratio1.36
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.41 mm8.37 mm4.40 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG822633154
Side View
Table 61.0%Crown 34.9°Girdle: MED-THKPavilion 31.5°Culet: NoneDepth 63.9%

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 27
Current: €3,070 EUR|Low: €586 EUR|High: €5,800 EUR|Avg: €1,851 EUR|-47.1%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 31, 2026
Retailer 8€588 EUR
Retailer 7€722 EUR
Retailer 3€797 EUR
Retailer 2€966 EUR
Retailer 12€1,042 EUR
Retailer 9€1,058 EUR
Retailer 4€1,254 EUR
Retailer 6€1,465 EUR
Retailer 5€2,098 EUR
Retailer 11€2,815 EUR
Retailer 10€2,954 EUR
Brilliant Earth€3,070 EUR

39 data points across 12 retailers

12 retailers€588 EUR to €3,070 EUR

A
Cheapest Retailer
-
€588 EUR
£517 GBP
A
Retailer 2
-
€722 EUR
HK$6,300 HKD
View
Retailer 3
-
€797 EUR
$890 USD
View
Price last confirmed 5 days ago
A
Retailer 4
-
€966 EUR
View
B+
Retailer 5
-
€1,042 EUR
$1,164 USD
View
A
Retailer 6
-
€1,058 EUR
£931 GBP
View
B+
Retailer 7
-
€1,254 EUR
$1,401 USD
View
B+
Retailer 8
-
€1,465 EUR
$1,637 USD
View
B+
Retailer 9
-
€2,098 EUR
SGD 3,167 SGD
View
Retailer 10
-
€2,815 EUR
$3,145 USD
View
Price last confirmed 14 days ago
Retailer 11
-
€2,954 EUR
£2,599 GBP
View
Price last confirmed 7 days ago
Most Expensive
B
Brilliant Earth
20801264A · Oct 31
€3,070 EUR
$3,430 USD
View
11 more retailers have this diamond
Prices start from €588 EURSave up to €2,482 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
4.40ct Cushion
€588 EUR