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Cushion|Lab Grown|IGI

2.56ct E IF Cushion Lab Grown Diamond

EX • E/IF • IGI LG729596351

Shape and cutting style on the report: Rectangular cushion mixed cut

Certificate IGI LG729596351

Diamond specifications and retailer prices

From £1,169 GBP
$1,557 USD
As of October 28, 2026
Save £6,318 GBP (84%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £7,487 GBP at Do Amore Diamonds · As of October 29, 2026
View at Do Amore Diamonds

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 LG729596351 or 729596351. Listed at 16 retailers as of October 28, 2026, with prices from £1,169 to £7,487, a £6,318 spread on the same certified stone. Do Amore Diamonds lists it at £7,487. 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
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.7°
Pavilion angle38.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG729596351
Dimensions10.45 × 6.20 × 4.22 mm
L/W Ratio1.69
Girdle conditionFaceted
Culet sizeLong
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.45 mm6.20 mm2.56 ctE / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG729596351
Side View
Table 65.0%Crown 35.7°Girdle: STK-THKPavilion 38.2°Culet: LNGDepth 68.1%

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: £7,487 GBP|Low: £1,169 GBP|High: £7,487 GBP|Avg: £2,852 GBP
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 29, 2026
Retailer 3£1,169 GBP
Retailer 11£1,211 GBP
Retailer 9£1,340 GBP
Retailer 12£1,419 GBP
Retailer 6£1,703 GBP
Retailer 2£1,888 GBP
Retailer 7£3,179 GBP
Retailer 4£3,227 GBP
Retailer 10£3,264 GBP
Retailer 5£3,450 GBP
Retailer 8£3,839 GBP
Do Amore Diamonds£7,487 GBP

43 data points across 12 retailers

16 retailers£1,169 GBP to £7,487 GBP

A
Cheapest Retailer
-
£1,169 GBP
$1,557 USD
Final sale: no returns
A
Retailer 2
-
£1,211 GBP
$1,613 USD
View
Price last confirmed 16 days ago
A
Retailer 3
-
£1,340 GBP
$1,785 USD
View
A
Retailer 4
-
£1,419 GBP
$1,890 USD
View
A
Retailer 5
-
£1,634 GBP
$2,176 USD
View
A
Retailer 6
-
£1,703 GBP
$2,268 USD
View
A
Retailer 7
-
£1,888 GBP
View
B+
Retailer 8
-
£3,179 GBP
A$6,513 AUD
View
Price last confirmed 7 days ago
B+
Retailer 9
-
£3,227 GBP
View
B+
Retailer 10
-
£3,264 GBP
$4,347 USD
View
B+
Retailer 11
-
£3,450 GBP
ZAR 74,211 ZAR
View
B+
Retailer 12
-
£3,708 GBP
$4,938 USD
View
B+
Retailer 13
-
£3,839 GBP
View
B
Retailer 14
-
£4,722 GBP
$6,288 USD
View
B
Retailer 15
-
£7,186 GBP
$9,570 USD
View
Most Expensive
B
Do Amore Diamonds
36-607396 · Oct 29
£7,487 GBP
$9,970 USD
View
15 more retailers have this diamond
Prices start from £1,169 GBPSave up to £6,318 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
£1,169 GBP