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Cushion|Lab Grown|IGI

4.10ct D IF Cushion Lab Grown Diamond

EX • D/IF • IGI LG720556118

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG720556118

Diamond specifications and retailer prices

From €2,760 EUR
$3,084 USD
As of October 29, 2026
Save €14,765 EUR (84%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: €17,526 EUR at Brilliant Earth · As of October 24, 2026
View at Brilliant Earth

About this 4.1ct lab-grown cushion diamond

This 4.1ct 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 LG720556118 or 720556118. Listed at 21 retailers as of October 24, 2026, with prices from €2,760 to €17,526, a €14,765 spread on the same certified stone. Brilliant Earth lists it at €17,526. 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

4.10
Carat
D
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.9°
Pavilion angle35.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG720556118
Dimensions10.53 × 8.80 × 5.68 mm
L/W Ratio1.20
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
10.53 mm8.80 mm4.10 ctD / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG720556118
Side View
Table 60.0%Crown 36.9°Girdle: MED-STKPavilion 35.6°Culet: NoneDepth 64.5%

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: €10,338 EUR|Low: €2,760 EUR|High: €18,063 EUR|Avg: €7,243 EUR|-41.0%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
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Retailer 8
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Retailer 11
Retailer 12
Retailer 13
Retailer 14
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Retailer 17
Retailer 18
Retailer 19
October 31, 2026
Retailer 3€2,760 EUR
Retailer 16€2,904 EUR
Retailer 15€3,003 EUR
Retailer 18€3,689 EUR
Retailer 19€3,724 EUR
Retailer 11€3,739 EUR
Retailer 2€4,231 EUR
Retailer 6€4,904 EUR
Retailer 8€5,443 EUR
Retailer 13€5,892 EUR
Retailer 12€6,719 EUR
Retailer 7€6,775 EUR
Retailer 9€7,627 EUR
Retailer 4€7,876 EUR
Retailer 14€8,045 EUR
Brilliant Earth€10,338 EUR
Retailer 5€10,782 EUR
Retailer 10€10,994 EUR
Retailer 17€16,962 EUR

37 data points across 19 retailers

21 retailers€2,760 EUR to €17,526 EUR

A
Cheapest Retailer
-
€2,760 EUR
$3,084 USD
Final sale: no returns
A
Retailer 2
-
€2,904 EUR
$3,244 USD
View
A
Retailer 3
-
€3,003 EUR
$3,355 USD
View
A
Retailer 4
-
€3,689 EUR
$4,121 USD
View
A
Retailer 5
-
€3,724 EUR
HK$32,500 HKD
View
Retailer 6
-
€3,739 EUR
$4,177 USD
View
Price last confirmed 19 days ago
A
Retailer 7
-
€4,231 EUR
£3,722 GBP
View
Retailer 8
-
€4,904 EUR
$5,479 USD
View
Price last confirmed 8 days ago
A
Retailer 9
-
€5,443 EUR
£4,788 GBP
View
A
Retailer 10
-
€5,892 EUR
View
A
Retailer 11
-
€6,719 EUR
ZAR 121,270 ZAR
View
Retailer 12
-
€6,775 EUR
A$11,644 AUD
View
Price last confirmed 9 days ago
A
Retailer 13
-
€7,627 EUR
$8,521 USD
View
B+
Retailer 14
-
€7,876 EUR
$8,799 USD
View
B+
Retailer 15
-
€8,045 EUR
£7,077 GBP
View
Retailer 16
-
€8,242 EUR
£7,250 GBP
View
Price last confirmed 22 days ago
B+
Retailer 17
-
€10,338 EUR
$11,550 USD
View
B+
Retailer 18
-
€10,782 EUR
SGD 16,278 SGD
View
B+
Retailer 19
-
€10,994 EUR
$12,283 USD
View
B
Retailer 20
-
€16,962 EUR
$18,950 USD
View
Most Expensive
B
Brilliant Earth
14890425A · Oct 24
€17,526 EUR
$19,580 USD
View
20 more retailers have this diamond
Prices start from €2,760 EURSave up to €14,765 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
4.10ct Cushion
€2,760 EUR