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Cushion|Lab Grown|IGI

4.05ct E IF Cushion Lab Grown Diamond

EX • E/IF • IGI LG760519436

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG760519436

Diamond specifications and retailer prices

From $6,041 NZD
$3,405 USD
As of October 30, 2026
Save $14,324 NZD (70%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $20,366 NZD at Taylor and Hart · As of October 31, 2026
View at Taylor and Hart

About this 4.05ct lab-grown cushion diamond

This 4.05ct lab-grown cushion sits in the three to five carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG760519436 or 760519436. Listed at 20 retailers as of October 30, 2026, with prices from $6,041 to $20,366, a $14,324 spread on the same certified stone. Taylor and Hart lists it at $20,366. 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

4.05
Carat
E
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.1°
Pavilion angle39.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG760519436
Dimensions9.25 × 9.25 × 6.18 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
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
9.25 mm9.25 mm4.05 ctE / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG760519436
Side View
Table 62.0%Crown 37.1°Girdle: MED-THKPavilion 39.9°Culet: NoneDepth 66.8%

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 30
Current: $6,595 NZD|Low: $5,640 NZD|High: $21,356 NZD|Avg: $11,947 NZD|+6.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Taylor and Hart
October 31, 2026
Retailer 7$6,041 NZD
Retailer 4$6,130 NZD
Retailer 10$6,134 NZD
Retailer 1$6,595 NZD
Retailer 13$7,564 NZD
Retailer 12$7,897 NZD
Retailer 5$8,786 NZD
Retailer 11$9,276 NZD
Retailer 18$10,086 NZD
Retailer 17$10,094 NZD
Retailer 14$12,441 NZD
Retailer 9$12,970 NZD
Retailer 8$13,163 NZD
Retailer 2$13,985 NZD
Retailer 15$14,895 NZD
Retailer 3$15,310 NZD
Retailer 16$16,270 NZD
Retailer 6$17,424 NZD
Taylor and Hart$20,366 NZD

33 data points across 19 retailers

20 retailers$6,041 NZD to $20,366 NZD

A
Cheapest Retailer
-
$6,041 NZD
$3,405 USD
A
Retailer 2
-
$6,130 NZD
$3,455 USD
View
Retailer 3
-
$6,134 NZD
$3,457 USD
View
Price last confirmed 20 days ago
A
Retailer 4
-
$6,595 NZD
$3,717 USD
View
Final sale: no returns
A
Retailer 5
-
$7,564 NZD
$4,263 USD
View
A
Retailer 6
-
$7,897 NZD
£3,504 GBP
View
Retailer 7
-
$8,500 NZD
£3,772 GBP
View
Price last confirmed 19 days ago
A
Retailer 8
-
$8,786 NZD
$4,952 USD
View
A
Retailer 9
-
$9,276 NZD
€4,979 EUR
View
A
Retailer 10
-
$10,086 NZD
£4,476 GBP
View
A
Retailer 11
-
$10,094 NZD
$5,689 USD
View
A
Retailer 12
-
$12,441 NZD
ZAR 113,279 ZAR
View
Retailer 13
-
$12,970 NZD
$7,310 USD
View
Price last confirmed 13 days ago
Retailer 14
-
$13,163 NZD
A$11,413 AUD
View
Price last confirmed 9 days ago
A
Retailer 15
-
$13,985 NZD
$7,882 USD
View
A
Retailer 16
-
$14,895 NZD
£6,610 GBP
View
B+
Retailer 17
-
$15,310 NZD
$8,629 USD
View
B+
Retailer 18
-
$16,270 NZD
$9,170 USD
View
B+
Retailer 19
-
$17,424 NZD
$9,820 USD
View
Most Expensive
B+
Taylor and Hart
7VGQJQS · Oct 31
$20,366 NZD
$11,478 USD
View
19 more retailers have this diamond
Prices start from $6,041 NZDSave up to $14,324 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
4.05ct Cushion
$6,041 NZD