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Cushion|Lab Grown|IGI

2.56ct E IF Cushion Lab Grown Diamond

ID • E/IF • IGI LG826677478

Shape and cutting style on the report: Cushion brilliant

Certificate IGI LG826677478

Diamond specifications and retailer prices

From $1,364 USD
As of October 28, 2026
Save $3,759 USD (73%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $5,123 USD at With Clarity · As of October 28, 2026
View at With Clarity

About this 2.56ct lab-grown cushion diamond

This 2.56ct 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 LG826677478 or 826677478. Listed at 20 retailers as of October 28, 2026, with prices from $1,364 to $5,123, a $3,759 spread on the same certified stone. With Clarity lists it at $5,123. 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

2.56
Carat
E
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40.5°
Pavilion angle43.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG826677478
Dimensions9.06 × 7.06 × 4.88 mm
L/W Ratio1.28
Girdle conditionFaceted
Culet sizeLarge
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.06 mm7.06 mm2.56 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG826677478
Side View
Table 55.0%Crown 40.5°Girdle: MED-THKPavilion 43.4°Culet: LargeDepth 69.1%

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 28
Current: $4,564 USD|Low: $1,364 USD|High: $5,410 USD|Avg: $3,229 USD|-5.7%
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
Retailer 18
Retailer 19
With Clarity
October 29, 2026
Retailer 4$1,364 USD
Retailer 5$1,413 USD
Retailer 18$1,535 USD
Retailer 8$1,638 USD
Retailer 14$2,020 USD
Retailer 12$2,042 USD
Retailer 13$2,216 USD
Retailer 19$2,544 USD
Retailer 3$2,774 USD
Retailer 17$3,360 USD
Retailer 11$3,414 USD
Retailer 9$3,469 USD
Retailer 15$3,631 USD
Retailer 16$3,923 USD
Retailer 2$4,161 USD
Retailer 6$4,442 USD
Retailer 1$4,564 USD
Retailer 7$4,729 USD
Retailer 10$4,953 USD
With Clarity$5,136 USD

31 data points across 20 retailers

20 retailers$1,364 USD to $5,123 USD

A
Cheapest Retailer
-
$1,364 USD
Final sale: no returns
A
Retailer 2
-
$1,413 USD
View
Price last confirmed 16 days ago
A
Retailer 3
-
$1,535 USD
View
A
Retailer 4
-
$1,638 USD
HK$12,800 HKD
View
A
Retailer 5
-
$2,020 USD
View
A
Retailer 6
-
$2,042 USD
£1,608 GBP
View
A
Retailer 7
-
$2,216 USD
€2,110 EUR
View
A
Retailer 8
-
$2,544 USD
View
A
Retailer 9
-
$2,774 USD
View
A
Retailer 10
-
$3,360 USD
A$5,169 AUD
View
B+
Retailer 11
-
$3,414 USD
£2,688 GBP
View
B+
Retailer 12
-
$3,469 USD
View
B+
Retailer 13
-
$3,631 USD
ZAR 58,661 ZAR
View
B+
Retailer 14
-
$3,923 USD
View
B+
Retailer 15
-
$4,161 USD
A$6,402 AUD
View
Price last confirmed 20 days ago
B+
Retailer 16
-
$4,442 USD
View
B+
Retailer 17
-
$4,564 USD
£3,594 GBP
View
B+
Retailer 18
-
$4,729 USD
SGD 6,390 SGD
View
B+
Retailer 19
-
$4,953 USD
View
Most Expensive
B+
With Clarity
826677478 · Oct 28
$5,123 USD
View
19 more retailers have this diamond
Prices start from $1,364 USDSave up to $3,759 USD

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
2.56ct Cushion
$1,364 USD