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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 $8,990 AUD
$6,315 USD
As of October 28, 2026
Save $22,857 AUD (72%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $31,847 AUD 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 10 retailers as of October 26, 2026, with prices from $8,990 to $31,847, a $22,857 spread on the same certified stone. Taylor and Hart lists it at $31,847. 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
Colour
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
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 28
Current: $11,451 AUD|Low: $8,990 AUD|High: $31,847 AUD|Avg: $15,585 AUD|-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$8,990 AUD
Retailer 5$9,589 AUD
Retailer 7$10,266 AUD
Retailer 4$11,060 AUD
Retailer 1$11,451 AUD
Retailer 10$12,757 AUD
Retailer 8$14,895 AUD
Retailer 2$15,168 AUD
Retailer 3$18,298 AUD
Retailer 9$24,976 AUD
Taylor and Hart$31,847 AUD

14 data points across 11 retailers

10 retailers$8,990 AUD to $31,847 AUD

A
Cheapest Retailer
-
$8,990 AUD
$6,315 USD
A
Retailer 2
-
$9,589 AUD
$6,736 USD
View
A
Retailer 3
-
$11,060 AUD
$7,769 USD
View
A
Retailer 4
-
$11,451 AUD
£6,334 GBP
View
B+
Retailer 5
-
$12,757 AUD
£7,056 GBP
View
B+
Retailer 6
-
$14,895 AUD
$10,463 USD
View
B+
Retailer 7
-
$15,168 AUD
$10,655 USD
View
B+
Retailer 8
-
$18,298 AUD
£10,121 GBP
View
B
Retailer 9
-
$24,976 AUD
$17,544 USD
View
Most Expensive
B
Taylor and Hart
0QD3Q6C · Oct 26
$31,847 AUD
$22,371 USD
View
9 more retailers have this diamond
Prices start from $8,990 AUDSave up to $22,857 AUD

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
$8,990 AUD