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Cushion|Lab Grown|IGI

4.11ct E FL Cushion Lab Grown Diamond

EX • E/FL • IGI LG844621789

Shape and cutting style on the report: Square cushion antique cut

Certificate IGI LG844621789

Diamond specifications and retailer prices

From $6,315 USD
As of October 28, 2026
Save $16,056 USD (72%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $22,371 USD at Taylor and Hart · As of October 26, 2026
View at Taylor and Hart

About this 4.11ct lab-grown cushion diamond

This 4.11ct 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 LG844621789 or 844621789. Listed at 11 retailers as of October 26, 2026, with prices from $6,315 to $22,371, a $16,056 spread on the same certified stone. Taylor and Hart lists it at $22,371. 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

4.11
Carat
E
Color
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.4°
Pavilion angle41.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG844621789
Dimensions9.81 × 9.52 × 6.04 mm
L/W Ratio1.03
Girdle conditionFaceted
Culet sizeLarge
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
9.81 mm9.52 mm4.11 ctE / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG844621789
Side View
Table 51.0%Crown 36.4°Girdle: MED-STKPavilion 41.2°Culet: LargeDepth 63.4%

Caratlytics Score

How it works →
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 28
Current: $8,044 USD|Low: $6,315 USD|High: $22,371 USD|Avg: $10,948 USD|-2.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Taylor and Hart
October 27, 2026
Retailer 6$6,315 USD
Retailer 5$6,736 USD
Retailer 7$7,211 USD
Retailer 4$7,769 USD
Retailer 1$8,044 USD
Retailer 10$8,961 USD
Retailer 8$10,463 USD
Retailer 2$10,655 USD
Retailer 3$12,854 USD
Retailer 9$17,544 USD
Taylor and Hart$22,371 USD

14 data points across 11 retailers

11 retailers$6,315 USD to $22,371 USD

A
Cheapest Retailer
-
$6,315 USD
A
Retailer 2
-
$6,736 USD
View
A
Retailer 3
-
$7,211 USD
View
Final sale: no returns
A
Retailer 4
-
$7,769 USD
View
A
Retailer 5
-
$8,044 USD
£6,334 GBP
View
B+
Retailer 6
-
$8,961 USD
£7,056 GBP
View
B+
Retailer 7
-
$10,463 USD
View
B+
Retailer 8
-
$10,655 USD
View
B+
Retailer 9
-
$12,854 USD
£10,121 GBP
View
B
Retailer 10
-
$17,544 USD
View
Most Expensive
B
Taylor and Hart
0QD3Q6C · Oct 26
$22,371 USD
View
10 more retailers have this diamond
Prices start from $6,315 USDSave up to $16,056 USD

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
4.11ct Cushion
$6,315 USD