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Cushion|Lab Grown|IGI

2.50ct E IF Cushion Lab Grown Diamond

VG • E/IF • IGI LG647492596

Certificate IGI LG647492596

Diamond specifications and retailer prices

From £1,224 GBP
$1,640 USD
As of October 30, 2026
Save £4,485 GBP (79%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: £5,709 GBP at Zales · As of October 30, 2026
View at Zales

About this 2.5ct lab-grown cushion diamond

This 2.5ct lab-grown cushion sits in the two to three carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a very-good cut grade and certified by IGI LG647492596 or 647492596. Listed at 4 retailers as of October 30, 2026, with prices from £1,224 to £5,709, a £4,485 spread on the same certified stone. Zales lists it at £5,709. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

2.50
Carat
E
Colour
IF
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabIGI
CertificateIGI LG647492596
Dimensions9.62 × 6.96 × 4.68 mm
L/W Ratio1.38
Top View
9.62 mm6.96 mm2.50 ctE / IF
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG647492596
Side View
Table 59.0%CrownGirdle: MED-STKPavilionCulet: NoneDepth 67.2%

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 30
Current: £4,108 GBP|Low: £1,224 GBP|High: £5,709 GBP|Avg: £4,199 GBP
Retailer 1
Retailer 2
Retailer 3
Zales
September 26, 2026
Retailer 2£1,224 GBP
Retailer 1£4,108 GBP
Retailer 3£5,709 GBP
Zales£5,709 GBP

2 data points across 4 retailers

4 retailers£1,224 GBP to £5,709 GBP

A
Cheapest Retailer
-
£1,224 GBP
$1,640 USD
B
Retailer 2
-
£4,108 GBP
$5,504 USD
View
B
Retailer 3
-
£5,709 GBP
$7,650 USD
View
Most Expensive
B
Zales
527912258 · Oct 30
£5,709 GBP
$7,650 USD
View
3 more retailers have this diamond
Prices start from £1,224 GBPSave up to £4,485 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
2.50ct Cushion
£1,224 GBP