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Cushion|Lab Grown|IGI

2.51ct E IF Cushion Lab Grown Diamond

EX • E/IF • IGI LG812620732

Shape and cutting style on the report: Square cushion modified brilliant

Certificate IGI LG812620732

Diamond specifications and retailer prices

From €1,083 EUR
$1,210 USD
As of October 31, 2026
Save €3,688 EUR (77%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: €4,771 EUR at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 2.51ct lab-grown cushion diamond

This 2.51ct lab-grown cushion sits in the two to three carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG812620732 or 812620732. Listed at 18 retailers as of October 31, 2026, with prices from €1,083 to €4,771, a €3,688 spread on the same certified stone. Brilliant Earth lists it at €4,771. 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

2.51
Carat
E
Color
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.8°
Pavilion angle39.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG812620732
Dimensions8.06 × 7.90 × 5.18 mm
L/W Ratio1.02
Girdle conditionFaceted
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
8.06 mm7.90 mm2.51 ctE / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG812620732
Side View
Table 64.0%Crown 34.8°Girdle: MED-THKPavilion 39.7°Culet: NoneDepth 65.6%

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 31
Current: €4,771 EUR|Low: €1,083 EUR|High: €5,567 EUR|Avg: €2,871 EUR|-14.3%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
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Retailer 11
Retailer 12
Retailer 13
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Retailer 17
Retailer 18
November 1, 2026
Retailer 4€1,083 EUR
Retailer 9€1,209 EUR
Retailer 14€1,253 EUR
Retailer 11€1,626 EUR
Retailer 7€1,690 EUR
Retailer 13€1,788 EUR
Retailer 15€2,120 EUR
Retailer 18€2,361 EUR
Retailer 12€2,665 EUR
Retailer 5€2,893 EUR
Retailer 16€2,896 EUR
Retailer 3€3,251 EUR
Retailer 10€3,342 EUR
Retailer 17€3,585 EUR
Retailer 2€3,807 EUR
Retailer 6€3,923 EUR
Retailer 8€4,413 EUR
Brilliant Earth€4,771 EUR

35 data points across 18 retailers

18 retailers€1,083 EUR to €4,771 EUR

A
Cheapest Retailer
-
€1,083 EUR
$1,210 USD
Final sale: no returns
Retailer 2
-
€1,209 EUR
$1,351 USD
View
Price last confirmed 20 days ago
A
Retailer 3
-
€1,253 EUR
$1,400 USD
View
A
Retailer 4
-
€1,626 EUR
£1,431 GBP
View
A
Retailer 5
-
€1,690 EUR
$1,888 USD
View
A
Retailer 6
-
€1,788 EUR
View
A
Retailer 7
-
€2,120 EUR
$2,369 USD
View
A
Retailer 8
-
€2,361 EUR
$2,638 USD
View
A
Retailer 9
-
€2,665 EUR
A$4,581 AUD
View
A
Retailer 10
-
€2,893 EUR
$3,232 USD
View
A
Retailer 11
-
€2,896 EUR
ZAR 52,273 ZAR
View
B+
Retailer 12
-
€3,251 EUR
$3,632 USD
View
Retailer 13
-
€3,342 EUR
£2,940 GBP
View
Price last confirmed 8 days ago
B+
Retailer 14
-
€3,585 EUR
$4,006 USD
View
B+
Retailer 15
-
€3,807 EUR
£3,349 GBP
View
B+
Retailer 16
-
€3,923 EUR
$4,382 USD
View
Retailer 17
-
€4,413 EUR
$4,930 USD
View
Price last confirmed 13 days ago
Most Expensive
B+
Brilliant Earth
20896257A · Oct 31
€4,771 EUR
$5,330 USD
View
17 more retailers have this diamond
Prices start from €1,083 EURSave up to €3,688 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
2.51ct Cushion
€1,083 EUR