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Princess|Lab Grown|IGI

2.42ct J SI1 Princess Lab Grown Diamond

EX • J/SI1 • IGI LG12838712

Shape and cutting style on the report: Square modified brilliant

Certificate IGI LG12838712

Diamond specifications and retailer prices

From £1,201 GBP
CA$2,236 CAD
As of October 30, 2026
Save £532 GBP (31%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: £1,734 GBP at The Diamond Guys · As of October 30, 2026
View at The Diamond Guys

About this 2.42ct lab-grown princess diamond

This 2.42ct lab-grown princess sits in the two to three carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG12838712 or 12838712. Listed at 2 retailers as of October 30, 2026, with prices from £1,201 to £1,734, a £532 spread on the same certified stone. The Diamond Guys lists it at £1,734. 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

2.42
Carat
J
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishGood
SymmetryGood
FluorescenceNone
Crown angle41.3°
Pavilion angle37.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG12838712
Dimensions7.57 × 7.42 × 4.97 mm
L/W Ratio1.02
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment.
Top View
7.57 mm7.42 mm2.42 ctJ / SI1
OriginLab Grown
CutExcellent
PolishGood
SymmetryGood
FluorescenceNone
CertificateIGI LG12838712
Side View
Table 75.5%Crown 41.3°Girdle: Slightly ThickPavilion 37.5°Culet: NoneDepth 67.0%

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: £598 GBP|Low: £362 GBP|High: £1,734 GBP|Avg: £929 GBP|+1.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
The Diamond Guys
September 5, 2026
Retailer 2£362 GBP
Retailer 4£500 GBP
Retailer 1£598 GBP
Retailer 3£1,201 GBP
The Diamond Guys£1,734 GBP

19 data points across 5 retailers

2 retailers£1,201 GBP to £1,734 GBP

B+
Cheapest Retailer
-
£1,201 GBP
CA$2,236 CAD
Most Expensive
B+
The Diamond Guys
1779253033 · Oct 30
£1,734 GBP
$2,323 USD
View
1 more retailer has this diamond
Prices start from £1,201 GBPSave up to £532 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+
2.42ct Princess
£1,201 GBP