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Cushion|Lab Grown|IGI

1.53ct F SI2 Cushion Lab Grown Diamond

VG • F/SI2 • IGI LG576348582

Certificate IGI LG576348582

Diamond specifications and retailer prices

From £644 GBP
As of November 6, 2026
Save £230 GBP (26%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: £874 GBP at Kay Jewelers · As of November 5, 2026
View at Kay Jewelers

About this 1.53ct lab-grown cushion diamond

This 1.53ct lab-grown cushion sits in the one-and-a-half to two carat band, graded F colour (colourless) and SI2 clarity (slightly-included), with a very-good cut grade and certified by IGI LG576348582 or 576348582. Listed at 3 retailers as of November 5, 2026, with prices from £644 to £874, a £230 spread on the same certified stone. Kay Jewelers lists it at £874. 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

1.53
Carat
F
Colour
SI2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabIGI
CertificateIGI LG576348582
Dimensions7.68 × 6.36 mm
L/W Ratio1.21
Top View
7.68 mm6.36 mm1.53 ctF / SI2
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG576348582
Side View
Table 61.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 64.5%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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Price History

Last verified: Nov 6
Current: £874 GBP|Low: £644 GBP|High: £949 GBP|Avg: £848 GBP
Kay Jewelers
Retailer 2
Retailer 3
November 6, 2026
Retailer 2£644 GBP
Kay Jewelers£874 GBP
Retailer 3£874 GBP

2 data points across 3 retailers

3 retailers£644 GBP to £874 GBP

B+
Cheapest Retailer
-
£644 GBP
B
Retailer 2
-
£874 GBP
View
Most Expensive
B
Kay Jewelers
247918557 · Nov 5
£874 GBP
$1,170 USD
View
2 more retailers have this diamond
Prices start from £644 GBPSave up to £230 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.

B+
1.53ct Cushion
£644 GBP