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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 $1,690 CAD
$1,210 USD
As of October 30, 2026
Save $5,755 CAD (77%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $7,445 CAD at Brilliant Earth · As of October 30, 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 17 retailers as of October 30, 2026, with prices from $1,690 to $7,445, a $5,755 spread on the same certified stone. Brilliant Earth lists it at $7,445. 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 30
Current: $7,445 CAD|Low: $1,690 CAD|High: $8,703 CAD|Avg: $4,575 CAD|-14.4%
Brilliant Earth
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
October 30, 2026
Retailer 17$1,690 CAD
Retailer 8$1,887 CAD
Retailer 15$2,102 CAD
Retailer 2$2,538 CAD
Retailer 5$2,637 CAD
Retailer 10$2,810 CAD
Retailer 14$3,685 CAD
Retailer 6$4,476 CAD
Retailer 3$4,515 CAD
Retailer 11$4,520 CAD
Retailer 16$5,074 CAD
Retailer 9$5,216 CAD
Retailer 13$5,595 CAD
Retailer 12$5,973 CAD
Retailer 4$6,122 CAD
Retailer 7$6,887 CAD
Brilliant Earth$7,445 CAD

36 data points across 17 retailers

17 retailers$1,690 CAD to $7,445 CAD

A
Cheapest Retailer
-
$1,690 CAD
$1,210 USD
Final sale: no returns
Retailer 2
-
$1,887 CAD
$1,351 USD
View
Price last confirmed 18 days ago
A
Retailer 3
-
$2,102 CAD
$1,505 USD
View
A
Retailer 4
-
$2,538 CAD
£1,431 GBP
View
A
Retailer 5
-
$2,637 CAD
$1,888 USD
View
A
Retailer 6
-
$2,810 CAD
€1,916 EUR
View
A
Retailer 7
-
$3,685 CAD
$2,638 USD
View
Retailer 8
-
$4,476 CAD
A$4,930 AUD
View
Price last confirmed 8 days ago
A
Retailer 9
-
$4,515 CAD
$3,232 USD
View
A
Retailer 10
-
$4,520 CAD
ZAR 52,273 ZAR
View
B+
Retailer 11
-
$5,074 CAD
$3,632 USD
View
Retailer 12
-
$5,216 CAD
£2,940 GBP
View
Price last confirmed 7 days ago
B+
Retailer 13
-
$5,595 CAD
$4,006 USD
View
B+
Retailer 14
-
$5,973 CAD
£3,367 GBP
View
B+
Retailer 15
-
$6,122 CAD
$4,382 USD
View
Retailer 16
-
$6,887 CAD
$4,930 USD
View
Price last confirmed 11 days ago
Most Expensive
B+
Brilliant Earth
20896257A · Oct 30
$7,445 CAD
$5,330 USD
View
16 more retailers have this diamond
Prices start from $1,690 CADSave up to $5,755 CAD

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
$1,690 CAD