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Cushion|Lab Grown|IGI

4.12ct E FL Cushion Lab Grown Diamond

EX • E/FL • IGI LG821638855

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG821638855

Diamond specifications and retailer prices

From €3,464 EUR
$3,870 USD
As of October 31, 2026
Save €16,488 EUR (83%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: €19,952 EUR at Do Amore Diamonds · As of October 31, 2026
View at Do Amore Diamonds

About this 4.12ct lab-grown cushion diamond

This 4.12ct lab-grown cushion sits in the three to five carat band, graded E colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG821638855 or 821638855. Listed at 10 retailers as of October 31, 2026, with prices from €3,464 to €19,952, a €16,488 spread on the same certified stone. Do Amore Diamonds lists it at €19,952. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

4.12
Carat
E
Color
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.4°
Pavilion angle38.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG821638855
Dimensions10.92 × 8.42 × 5.68 mm
L/W Ratio1.30
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
10.92 mm8.42 mm4.12 ctE / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG821638855
Side View
Table 59.0%Crown 33.4°Girdle: STK-THKPavilion 38.9°Culet: NoneDepth 67.5%

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 31
Current: €19,952 EUR|Low: €3,504 EUR|High: €29,057 EUR|Avg: €10,367 EUR|-3.5%
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 31, 2026
Retailer 6€3,504 EUR
Retailer 7€3,849 EUR
Retailer 5€4,210 EUR
Retailer 8€5,412 EUR
Retailer 2€6,316 EUR
Retailer 10€7,384 EUR
Retailer 11€8,241 EUR
Retailer 9€8,255 EUR
Retailer 4€10,732 EUR
Do Amore Diamonds€19,952 EUR
Retailer 3€23,324 EUR

27 data points across 11 retailers

10 retailers€3,464 EUR to €19,952 EUR

A
Cheapest Retailer
-
€3,464 EUR
$3,870 USD
A
Retailer 2
-
€3,504 EUR
$3,915 USD
View
A
Retailer 3
-
€4,210 EUR
$4,703 USD
View
A
Retailer 4
-
€5,412 EUR
$6,046 USD
View
A
Retailer 5
-
€6,316 EUR
View
Retailer 6
-
€7,384 EUR
$8,250 USD
View
Price last confirmed 17 days ago
Retailer 7
-
€8,241 EUR
$9,207 USD
View
Price last confirmed 14 days ago
B+
Retailer 8
-
€8,255 EUR
£7,262 GBP
View
B+
Retailer 9
-
€10,732 EUR
$11,990 USD
View
Most Expensive
B
Do Amore Diamonds
27-D7A519999 · Oct 31
€19,952 EUR
$22,290 USD
View
9 more retailers have this diamond
Prices start from €3,464 EURSave up to €16,488 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
4.12ct Cushion
€3,464 EUR