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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 $11,205 NZD
$6,315 USD
As of October 28, 2026
Save $28,487 NZD (72%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $39,692 NZD 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 $11,205 to $39,692, a $28,487 spread on the same certified stone. Taylor and Hart lists it at $39,692. 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: $14,272 NZD|Low: $11,205 NZD|High: $39,692 NZD|Avg: $19,425 NZD|-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$11,205 NZD
Retailer 5$11,952 NZD
Retailer 7$12,794 NZD
Retailer 4$13,785 NZD
Retailer 1$14,272 NZD
Retailer 10$15,900 NZD
Retailer 8$18,565 NZD
Retailer 2$18,905 NZD
Retailer 3$22,806 NZD
Retailer 9$31,129 NZD
Taylor and Hart$39,692 NZD

14 data points across 11 retailers

10 retailers$11,205 NZD to $39,692 NZD

A
Cheapest Retailer
-
$11,205 NZD
$6,315 USD
A
Retailer 2
-
$11,952 NZD
$6,736 USD
View
A
Retailer 3
-
$13,785 NZD
$7,769 USD
View
A
Retailer 4
-
$14,272 NZD
£6,334 GBP
View
B+
Retailer 5
-
$15,900 NZD
£7,056 GBP
View
B+
Retailer 6
-
$18,565 NZD
$10,463 USD
View
B+
Retailer 7
-
$18,905 NZD
$10,655 USD
View
B+
Retailer 8
-
$22,806 NZD
£10,121 GBP
View
B
Retailer 9
-
$31,129 NZD
$17,544 USD
View
Most Expensive
B
Taylor and Hart
0QD3Q6C · Oct 26
$39,692 NZD
$22,371 USD
View
9 more retailers have this diamond
Prices start from $11,205 NZDSave up to $28,487 NZD

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
$11,205 NZD