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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 $2,720 USD
As of October 30, 2026
Save $7,118 USD (72%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $9,838 USD 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 $2,720 to $9,838, a $7,118 spread on the same certified stone. Taylor and Hart lists it at $9,838. 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
Color
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

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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 30
Current: $2,720 USD|Low: $2,720 USD|High: $11,195 USD|Avg: $6,246 USD|-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$2,720 USD
Retailer 2$3,015 USD
Retailer 13$3,020 USD
Retailer 8$3,212 USD
Retailer 9$3,882 USD
Retailer 5$4,238 USD
Retailer 11$4,497 USD
Retailer 16$5,349 USD
Retailer 15$5,599 USD
Retailer 10$6,000 USD
Retailer 7$6,892 USD
Retailer 3$7,156 USD
Retailer 4$7,371 USD
Retailer 12$7,587 USD
Retailer 14$7,923 USD
Retailer 6$9,770 USD
Taylor and Hart$9,838 USD

34 data points across 17 retailers

16 retailers$2,720 USD to $9,838 USD

A
Cheapest Retailer
-
$2,720 USD
Final sale: no returns
A
Retailer 2
-
$3,015 USD
View
A
Retailer 3
-
$3,020 USD
View
A
Retailer 4
-
$3,882 USD
£3,057 GBP
View
A
Retailer 5
-
$4,238 USD
View
A
Retailer 6
-
$4,497 USD
€4,283 EUR
View
A
Retailer 7
-
$5,349 USD
£4,212 GBP
View
A
Retailer 8
-
$5,599 USD
View
A
Retailer 9
-
$6,000 USD
ZAR 96,925 ZAR
View
Retailer 10
-
$6,892 USD
A$10,603 AUD
View
Price last confirmed 8 days ago
B+
Retailer 11
-
$7,156 USD
View
B+
Retailer 12
-
$7,371 USD
View
B+
Retailer 13
-
$7,587 USD
£5,974 GBP
View
B+
Retailer 14
-
$7,923 USD
View
B+
Retailer 15
-
$9,770 USD
View
Most Expensive
B+
Taylor and Hart
8YIAU1J · Oct 30
$9,838 USD
View
15 more retailers have this diamond
Prices start from $2,720 USDSave up to $7,118 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
4.07ct Cushion
$2,720 USD