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Cushion|Lab Grown|IGI

4.07ct E IF Cushion Lab Grown Diamond

GD • E/IF • IGI LG678556777

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG678556777

Diamond specifications and retailer prices

From $3,872 AUD
$2,720 USD
As of October 30, 2026
Save $10,134 AUD (72%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $14,006 AUD at Taylor and Hart · As of October 30, 2026
View at Taylor and Hart

About this 4.07ct lab-grown cushion diamond

This 4.07ct lab-grown cushion sits in the three to five carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a standard cut grade and certified by IGI LG678556777 or 678556777. Listed at 16 retailers as of October 30, 2026, with prices from $3,872 to $14,006, a $10,134 spread on the same certified stone. Taylor and Hart lists it at $14,006. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

4.07
Carat
E
Colour
IF
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.8°
Pavilion angle37.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG678556777
Dimensions9.22 × 9.22 × 5.93 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
9.22 mm9.22 mm4.07 ctE / IF
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG678556777
Side View
Table 64.0%Crown 36.8°Girdle: MED-THKPavilion 37.6°Culet: NoneDepth 64.3%

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: $3,872 AUD|Low: $3,872 AUD|High: $15,937 AUD|Avg: $8,892 AUD|-18.9%
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
Taylor and Hart
October 30, 2026
Retailer 1$3,872 AUD
Retailer 2$4,292 AUD
Retailer 13$4,299 AUD
Retailer 8$4,573 AUD
Retailer 9$5,527 AUD
Retailer 5$6,033 AUD
Retailer 11$6,402 AUD
Retailer 16$7,615 AUD
Retailer 15$7,971 AUD
Retailer 10$8,541 AUD
Retailer 7$9,811 AUD
Retailer 3$10,187 AUD
Retailer 4$10,493 AUD
Retailer 12$10,801 AUD
Retailer 14$11,279 AUD
Retailer 6$13,909 AUD
Taylor and Hart$14,006 AUD

34 data points across 17 retailers

16 retailers$3,872 AUD to $14,006 AUD

A
Cheapest Retailer
-
$3,872 AUD
$2,720 USD
Final sale: no returns
A
Retailer 2
-
$4,292 AUD
$3,015 USD
View
A
Retailer 3
-
$4,299 AUD
$3,020 USD
View
A
Retailer 4
-
$5,527 AUD
£3,057 GBP
View
A
Retailer 5
-
$6,033 AUD
$4,238 USD
View
A
Retailer 6
-
$6,402 AUD
€4,283 EUR
View
A
Retailer 7
-
$7,615 AUD
£4,212 GBP
View
A
Retailer 8
-
$7,971 AUD
$5,599 USD
View
A
Retailer 9
-
$8,541 AUD
ZAR 96,925 ZAR
View
Retailer 10
-
$9,811 AUD
View
Price last confirmed 8 days ago
B+
Retailer 11
-
$10,187 AUD
$7,156 USD
View
B+
Retailer 12
-
$10,493 AUD
$7,371 USD
View
B+
Retailer 13
-
$10,801 AUD
£5,974 GBP
View
B+
Retailer 14
-
$11,279 AUD
$7,923 USD
View
B+
Retailer 15
-
$13,909 AUD
$9,770 USD
View
Most Expensive
B+
Taylor and Hart
8YIAU1J · Oct 30
$14,006 AUD
$9,838 USD
View
15 more retailers have this diamond
Prices start from $3,872 AUDSave up to $10,134 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
4.07ct Cushion
$3,872 AUD