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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 £1,024 GBP
$1,364 USD
As of October 28, 2026
Save £2,823 GBP (73%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: £3,847 GBP 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 £1,024 to £3,847, a £2,823 spread on the same certified stone. With Clarity lists it at £3,847. 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
Colour
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
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 28
Current: £2,737 GBP|Low: £1,024 GBP|High: £4,063 GBP|Avg: £2,430 GBP|-3.4%
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£1,024 GBP
Retailer 5£1,061 GBP
Retailer 18£1,153 GBP
Retailer 8£1,230 GBP
Retailer 15£1,517 GBP
Retailer 14£1,533 GBP
Retailer 12£1,678 GBP
Retailer 19£1,910 GBP
Retailer 3£2,083 GBP
Retailer 17£2,523 GBP
Retailer 11£2,563 GBP
Retailer 9£2,605 GBP
Retailer 1£2,737 GBP
Retailer 16£2,946 GBP
Retailer 2£3,125 GBP
Retailer 6£3,336 GBP
Retailer 13£3,428 GBP
Retailer 7£3,551 GBP
Retailer 10£3,719 GBP
With Clarity£3,857 GBP

31 data points across 20 retailers

20 retailers£1,024 GBP to £3,847 GBP

A
Cheapest Retailer
-
£1,024 GBP
$1,364 USD
Final sale: no returns
A
Retailer 2
-
£1,061 GBP
$1,413 USD
View
Price last confirmed 16 days ago
A
Retailer 3
-
£1,153 GBP
$1,535 USD
View
A
Retailer 4
-
£1,230 GBP
HK$12,800 HKD
View
A
Retailer 5
-
£1,517 GBP
$2,020 USD
View
A
Retailer 6
-
£1,533 GBP
View
A
Retailer 7
-
£1,678 GBP
€2,128 EUR
View
A
Retailer 8
-
£1,910 GBP
$2,544 USD
View
A
Retailer 9
-
£2,083 GBP
$2,774 USD
View
A
Retailer 10
-
£2,523 GBP
A$5,169 AUD
View
B+
Retailer 11
-
£2,563 GBP
View
B+
Retailer 12
-
£2,605 GBP
$3,469 USD
View
B+
Retailer 13
-
£2,737 GBP
ZAR 58,892 ZAR
View
B+
Retailer 14
-
£2,946 GBP
$3,923 USD
View
B+
Retailer 15
-
£3,125 GBP
A$6,402 AUD
View
Price last confirmed 20 days ago
B+
Retailer 16
-
£3,336 GBP
$4,442 USD
View
B+
Retailer 17
-
£3,428 GBP
View
B+
Retailer 18
-
£3,551 GBP
SGD 6,390 SGD
View
B+
Retailer 19
-
£3,719 GBP
$4,953 USD
View
Most Expensive
B+
With Clarity
826677478 · Oct 28
£3,847 GBP
$5,123 USD
View
19 more retailers have this diamond
Prices start from £1,024 GBPSave up to £2,823 GBP

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
£1,024 GBP