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Cushion|Lab Grown|IGI

1.52ct F SI2 Cushion Lab Grown Diamond

ID • F/SI2 • IGI LG12674412

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG12674412

Diamond specifications and retailer prices

From £686 GBP
CA$1,277 CAD
As of October 30, 2026
Save £221 GBP (24%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: £908 GBP at The Diamond Guys · As of November 1, 2026
View at The Diamond Guys

About this 1.52ct lab-grown cushion diamond

This 1.52ct 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 top-tier cut grade and certified by IGI LG12674412 or 12674412. Listed at 2 retailers as of October 30, 2026, with prices from £686 to £908, a £221 spread on the same certified stone. The Diamond Guys lists it at £908. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.52
Carat
F
Colour
SI2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle35.5°
Pavilion angle37.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG12674412
Dimensions6.80 × 6.61 × 4.28 mm
L/W Ratio1.03
Cert comments
As Grown - No indications of post-growth treatment. This Laboratory Grown Diamond was created by High Pressure High Tempertature (HPHT) growth process.
Top View
6.80 mm6.61 mm1.52 ctF / SI2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG12674412
Side View
Table 62.0%Crown 35.5°Girdle: STK-UNDPavilion 37.3°Culet: NoneDepth 64.6%

Caratlytics Score

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B+
Very Good
Strong quality and value balance
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Price History

Last verified: Oct 30
Current: £686 GBP|Low: £337 GBP|High: £908 GBP|Avg: £560 GBP|+2.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
The Diamond Guys
June 15, 2026
Retailer 4£337 GBP
Retailer 3£451 GBP
Retailer 2£457 GBP
Retailer 1£686 GBP
The Diamond Guys£908 GBP

18 data points across 5 retailers

2 retailers£686 GBP to £908 GBP

B+
Cheapest Retailer
-
£686 GBP
CA$1,277 CAD
Most Expensive
B
The Diamond Guys
1779253353 · Nov 1
£908 GBP
$1,216 USD
View
1 more retailer has this diamond
Prices start from £686 GBPSave up to £221 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+
1.52ct Cushion
£686 GBP