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Princess|Lab Grown|IGI

1.71ct H VVS1 Princess Lab Grown Diamond

EX • H/VVS1 • IGI LG478127434

Shape and cutting style on the report: Princess cut

Certificate IGI LG478127434

Diamond specifications and retailer prices

From £372 GBP
As of November 4, 2026
Save £738 GBP (67%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: £1,110 GBP at MOH London · As of November 1, 2026
View at MOH London

About this 1.71ct lab-grown princess diamond

This 1.71ct lab-grown princess sits in the one-and-a-half to two carat band, graded H colour (near-colourless) and VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG478127434 or 478127434. Listed at 9 retailers as of November 1, 2026, with prices from £372 to £1,110, a £738 spread on the same certified stone. MOH London lists it at £1,110. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.71
Carat
H
Colour
VVS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38°
Pavilion angle36.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG478127434
Dimensions6.70 × 6.46 × 4.44 mm
L/W Ratio1.04
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) process.
Top View
6.70 mm6.46 mm1.71 ctH / VVS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG478127434
Side View
Table 66.0%Crown 38°Girdle: ThickPavilion 36.3°Culet: NoneDepth 68.7%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: £1,110 GBP|Low: £313 GBP|High: £1,117 GBP|Avg: £669 GBP|+7.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 4, 2026
Retailer 7£372 GBP
Retailer 5£409 GBP
Retailer 9£420 GBP
Retailer 3£434 GBP
Retailer 2£692 GBP
Retailer 4£812 GBP
Retailer 6£959 GBP
Retailer 8£1,012 GBP
MOH London£1,110 GBP

33 data points across 9 retailers

9 retailers£372 GBP to £1,110 GBP

B+
Cheapest Retailer
-
£372 GBP
A
Retailer 2
-
£409 GBP
View
A
Retailer 3
-
£434 GBP
View
B+
Retailer 4
-
£692 GBP
View
B+
Retailer 5
-
£812 GBP
View
B
Retailer 6
-
£959 GBP
View
B
Retailer 7
-
£1,012 GBP
View
B
Retailer 8
-
£1,012 GBP
View
Most Expensive
B
MOH London
LG478127434 · Nov 1
£1,110 GBP
View
8 more retailers have this diamond
Prices start from £372 GBPSave up to £738 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
1.71ct Princess
£372 GBP