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Cushion|Lab Grown|IGI

4.08ct D IF Cushion Lab Grown Diamond

ID • D/IF • IGI LG681578731

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG681578731

Diamond specifications and retailer prices

From €2,933 EUR
$3,277 USD
As of October 29, 2026
Save €12,729 EUR (81%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: €15,662 EUR at With Clarity · As of October 31, 2026
View at With Clarity

About this 4.08ct lab-grown cushion diamond

This 4.08ct lab-grown cushion sits in the three to five carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG681578731 or 681578731. Listed at 18 retailers as of October 29, 2026, with prices from €2,933 to €15,662, a €12,729 spread on the same certified stone. With Clarity lists it at €15,662. 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

4.08
Carat
D
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle35.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG681578731
Dimensions10.84 × 8.58 × 5.61 mm
L/W Ratio1.26
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
10.84 mm8.58 mm4.08 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG681578731
Side View
Table 60.0%Crown 35.5°Girdle: MED-THKPavilion 35.9°Culet: NoneDepth 65.4%

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 29
Current: €4,107 EUR|Low: €2,933 EUR|High: €16,868 EUR|Avg: €7,258 EUR|-8.6%
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
With Clarity
October 31, 2026
Retailer 4€2,933 EUR
Retailer 12€3,062 EUR
Retailer 10€3,182 EUR
Retailer 3€3,701 EUR
Retailer 1€4,107 EUR
Retailer 11€4,822 EUR
Retailer 5€4,872 EUR
Retailer 8€5,013 EUR
Retailer 17€5,238 EUR
Retailer 2€6,469 EUR
Retailer 6€8,435 EUR
Retailer 14€8,446 EUR
Retailer 9€8,741 EUR
Retailer 13€9,765 EUR
Retailer 16€10,587 EUR
Retailer 15€10,724 EUR
Retailer 7€13,952 EUR
With Clarity€15,662 EUR

35 data points across 18 retailers

18 retailers€2,933 EUR to €15,662 EUR

A
Cheapest Retailer
-
€2,933 EUR
$3,277 USD
Final sale: no returns
A
Retailer 2
-
€3,062 EUR
$3,421 USD
View
A
Retailer 3
-
€3,182 EUR
$3,555 USD
View
A
Retailer 4
-
€3,701 EUR
HK$32,300 HKD
View
A
Retailer 5
-
€4,107 EUR
£3,613 GBP
View
A
Retailer 6
-
€4,822 EUR
$5,387 USD
View
A
Retailer 7
-
€4,872 EUR
View
A
Retailer 8
-
€5,013 EUR
$5,600 USD
View
A
Retailer 9
-
€5,238 EUR
£4,608 GBP
View
A
Retailer 10
-
€6,469 EUR
ZAR 116,763 ZAR
View
B+
Retailer 11
-
€8,435 EUR
£7,420 GBP
View
B+
Retailer 12
-
€8,446 EUR
$9,436 USD
View
B+
Retailer 13
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€8,741 EUR
$9,766 USD
View
B+
Retailer 14
-
€9,765 EUR
$10,910 USD
View
B+
Retailer 15
-
€10,587 EUR
$11,828 USD
View
B+
Retailer 16
-
€10,724 EUR
SGD 16,191 SGD
View
Retailer 17
-
€13,952 EUR
A$23,980 AUD
View
Price last confirmed 23 days ago
Most Expensive
B
With Clarity
681578731 · Oct 31
€15,662 EUR
$17,498 USD
View
17 more retailers have this diamond
Prices start from €2,933 EURSave up to €12,729 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
4.08ct Cushion
€2,933 EUR