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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 €2,435 EUR
$2,720 USD
As of October 30, 2026
Save €6,371 EUR (72%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: €8,806 EUR 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 €2,435 to €8,806, a €6,371 spread on the same certified stone. Taylor and Hart lists it at €8,806. 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

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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: €2,435 EUR|Low: €2,435 EUR|High: €10,020 EUR|Avg: €5,591 EUR|-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€2,435 EUR
Retailer 2€2,699 EUR
Retailer 13€2,703 EUR
Retailer 8€2,875 EUR
Retailer 9€3,475 EUR
Retailer 5€3,793 EUR
Retailer 11€4,025 EUR
Retailer 16€4,788 EUR
Retailer 15€5,012 EUR
Retailer 10€5,370 EUR
Retailer 7€6,169 EUR
Retailer 3€6,405 EUR
Retailer 4€6,597 EUR
Retailer 12€6,791 EUR
Retailer 14€7,091 EUR
Retailer 6€8,745 EUR
Taylor and Hart€8,806 EUR

34 data points across 17 retailers

16 retailers€2,435 EUR to €8,806 EUR

A
Cheapest Retailer
-
€2,435 EUR
$2,720 USD
Final sale: no returns
A
Retailer 2
-
€2,699 EUR
$3,015 USD
View
A
Retailer 3
-
€2,703 EUR
$3,020 USD
View
A
Retailer 4
-
€3,475 EUR
£3,057 GBP
View
A
Retailer 5
-
€3,793 EUR
$4,238 USD
View
A
Retailer 6
-
€4,025 EUR
View
A
Retailer 7
-
€4,788 EUR
£4,212 GBP
View
A
Retailer 8
-
€5,012 EUR
$5,599 USD
View
A
Retailer 9
-
€5,370 EUR
ZAR 96,925 ZAR
View
Retailer 10
-
€6,169 EUR
A$10,603 AUD
View
Price last confirmed 8 days ago
B+
Retailer 11
-
€6,405 EUR
$7,156 USD
View
B+
Retailer 12
-
€6,597 EUR
$7,371 USD
View
B+
Retailer 13
-
€6,791 EUR
£5,974 GBP
View
B+
Retailer 14
-
€7,091 EUR
$7,923 USD
View
B+
Retailer 15
-
€8,745 EUR
$9,770 USD
View
Most Expensive
B+
Taylor and Hart
8YIAU1J · Oct 30
€8,806 EUR
$9,838 USD
View
15 more retailers have this diamond
Prices start from €2,435 EURSave up to €6,371 EUR

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
€2,435 EUR