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Cushion|Lab Grown|IGI

2.56ct E IF Cushion Lab Grown Diamond

ID • E/IF • IGI LG818674669

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG818674669

Diamond specifications and retailer prices

From £1,471 GBP
As of October 29, 2026
Save £2,091 GBP (59%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: £3,562 GBP at Taylor and Hart · As of October 27, 2026
View at Taylor and Hart

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 LG818674669 or 818674669. Listed at 6 retailers as of October 27, 2026, with prices from £1,471 to £3,562, a £2,091 spread on the same certified stone. Taylor and Hart lists it at £3,562. 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 angle39.8°
Pavilion angle37.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818674669
Dimensions9.19 × 6.79 × 4.60 mm
L/W Ratio1.35
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.19 mm6.79 mm2.56 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818674669
Side View
Table 62.0%Crown 39.8°Girdle: STK-THKPavilion 37.8°Culet: NoneDepth 67.7%

Caratlytics Score

How it works →
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 29
Current: £1,471 GBP|Low: £1,467 GBP|High: £3,562 GBP|Avg: £2,278 GBP|-1.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Taylor and Hart
October 29, 2026
Retailer 1£1,471 GBP
Retailer 2£1,605 GBP
Retailer 4£1,615 GBP
Retailer 5£2,070 GBP
Retailer 3£3,286 GBP
Taylor and Hart£3,562 GBP

37 data points across 6 retailers

6 retailers£1,471 GBP to £3,562 GBP

A
Cheapest Retailer
-
£1,471 GBP
A
Retailer 2
-
£1,605 GBP
€2,035 EUR
View
A
Retailer 3
-
£1,615 GBP
$2,151 USD
View
A
Retailer 4
-
£2,070 GBP
$2,757 USD
View
B+
Retailer 5
-
£3,286 GBP
View
Most Expensive
B+
Taylor and Hart
PDLG5B4 · Oct 27
£3,562 GBP
$4,744 USD
View
5 more retailers have this diamond
Prices start from £1,471 GBPSave up to £2,091 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
£1,471 GBP