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Princess|Lab Grown|IGI

1.51ct H VS1 Princess Lab Grown Diamond

ID • H/VS1 • IGI LG634405515

Shape and cutting style on the report: Princess cut

Certificate IGI LG634405515

Diamond specifications and retailer prices

From £249 GBP
As of November 4, 2026
Save £984 GBP (80%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £1,233 GBP at MOH London · As of November 5, 2026
View at MOH London

About this 1.51ct lab-grown princess diamond

This 1.51ct lab-grown princess sits in the one-and-a-half to two carat band, graded H colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG634405515 or 634405515. Listed at 15 retailers as of November 4, 2026, with prices from £249 to £1,233, a £984 spread on the same certified stone. MOH London lists it at £1,233. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.51
Carat
H
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.7°
Pavilion angle37.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG634405515
Dimensions6.53 × 6.37 × 4.32 mm
L/W Ratio1.03
Culet sizePointed
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
6.53 mm6.37 mm1.51 ctH / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG634405515
Side View
Table 69.0%Crown 39.7°Girdle: THN-MEDPavilion 37.8°Culet: NoneDepth 67.8%

Caratlytics Score

How it works →
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: £1,233 GBP|Low: £239 GBP|High: £1,251 GBP|Avg: £645 GBP|+1.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
November 5, 2026
Retailer 11£249 GBP
Retailer 5£289 GBP
Retailer 3£309 GBP
Retailer 12£309 GBP
Retailer 9£422 GBP
Retailer 6£499 GBP
Retailer 13£499 GBP
Retailer 7£532 GBP
Retailer 2£724 GBP
Retailer 8£874 GBP
Retailer 10£905 GBP
Retailer 14£992 GBP
Retailer 4£1,196 GBP
MOH London£1,233 GBP

33 data points across 14 retailers

15 retailers£249 GBP to £1,233 GBP

A
Cheapest Retailer
-
£249 GBP
A
Retailer 2
-
£289 GBP
View
A
Retailer 3
-
£309 GBP
View
Retailer 4
-
£309 GBP
View
Price last confirmed 11 days ago
A
Retailer 5
-
£422 GBP
View
B+
Retailer 6
-
£499 GBP
View
B+
Retailer 7
-
£499 GBP
View
B+
Retailer 8
-
£532 GBP
View
B+
Retailer 9
-
£635 GBP
View
B+
Retailer 10
-
£724 GBP
View
B
Retailer 11
-
£874 GBP
View
B
Retailer 12
-
£905 GBP
View
B
Retailer 13
-
£992 GBP
View
B
Retailer 14
-
£1,196 GBP
View
Most Expensive
B
MOH London
LG634405515 · Nov 5
£1,233 GBP
View
14 more retailers have this diamond
Prices start from £249 GBPSave up to £984 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
1.51ct Princess
£249 GBP