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Princess|Lab Grown|IGI

1.27ct G VS1 Princess Lab Grown Diamond

ID • G/VS1 • IGI LG621426472

Shape and cutting style on the report: Princess cut

Certificate IGI LG621426472

Diamond specifications and retailer prices

From £307 GBP
As of November 4, 2026
Save £511 GBP (62%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: £818 GBP at MOH London · As of November 5, 2026
View at MOH London

About this 1.27ct lab-grown princess diamond

This 1.27ct lab-grown princess sits in the one-and-a-quarter to one-and-a-half carat band, graded G colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG621426472 or 621426472. Listed at 4 retailers as of November 4, 2026, with prices from £307 to £818, a £511 spread on the same certified stone. MOH London lists it at £818. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.27
Carat
G
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle43.6°
Pavilion angle39.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG621426472
Dimensions5.98 × 5.85 × 4.19 mm
L/W Ratio1.02
Culet sizeNone
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
5.98 mm5.85 mm1.27 ctG / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG621426472
Side View
Table 79.0%Crown 43.6°Girdle: ThickPavilion 39.3°Culet: NoneDepth 71.6%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 4
Current: £818 GBP|Low: £289 GBP|High: £830 GBP|Avg: £449 GBP|-0.2%
MOH London
Retailer 2
Retailer 3
Retailer 4
November 5, 2026
Retailer 3£307 GBP
Retailer 2£316 GBP
Retailer 4£353 GBP
MOH London£818 GBP

42 data points across 4 retailers

4 retailers£307 GBP to £818 GBP

A
Cheapest Retailer
-
£307 GBP
A
Retailer 2
-
£316 GBP
View
A
Retailer 3
-
£353 GBP
View
Most Expensive
B
MOH London
LG621426472 · Nov 5
£818 GBP
View
3 more retailers have this diamond
Prices start from £307 GBPSave up to £511 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
1.27ct Princess
£307 GBP