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Princess|Lab Grown|IGI

1.51ct H VS1 Princess Lab Grown Diamond

VG • H/VS1 • IGI LG644479922

Shape and cutting style on the report: Princess cut

Certificate IGI LG644479922

Diamond specifications and retailer prices

From £281 GBP
As of November 3, 2026
Save £527 GBP (65%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: £808 GBP at MOH London · As of November 1, 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 very-good cut grade and certified by IGI LG644479922 or 644479922. Listed at 7 retailers as of November 1, 2026, with prices from £281 to £808, a £527 spread on the same certified stone. MOH London lists it at £808. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.51
Carat
H
Colour
VS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle42.6°
Pavilion angle39.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG644479922
Dimensions6.12 × 6.11 × 4.59 mm
L/W Ratio1.00
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.12 mm6.11 mm1.51 ctH / VS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG644479922
Side View
Table 68.0%Crown 42.6°Girdle: MediumPavilion 39.6°Culet: NoneDepth 75.1%

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 3
Current: £808 GBP|Low: £281 GBP|High: £818 GBP|Avg: £543 GBP
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 1, 2026
Retailer 5£281 GBP
Retailer 3£317 GBP
Retailer 4£373 GBP
Retailer 8£385 GBP
Retailer 2£619 GBP
Retailer 6£775 GBP
Retailer 7£782 GBP
MOH London£808 GBP

12 data points across 8 retailers

7 retailers£281 GBP to £808 GBP

A
Cheapest Retailer
-
£281 GBP
B+
Retailer 2
-
£317 GBP
View
B+
Retailer 3
-
£373 GBP
View
B+
Retailer 4
-
£619 GBP
View
Retailer 5
-
£644 GBP
View
Price last confirmed 88 days ago
B
Retailer 6
-
£775 GBP
View
Most Expensive
B
MOH London
LG644479922 · Nov 1
£808 GBP
View
6 more retailers have this diamond
Prices start from £281 GBPSave up to £527 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
£281 GBP