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Princess|Lab Grown|IGI

1.05ct F SI1 Princess Lab Grown Diamond

VG • F/SI1 • IGI LG839670498

Shape and cutting style on the report: Princess cut

Certificate IGI LG839670498

Diamond specifications and retailer prices

From £114 GBP
As of November 6, 2026
Save £338 GBP (75%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £658 GBP at MOH London · As of October 26, 2026
View at MOH London

About this 1.05ct lab-grown princess diamond

This 1.05ct lab-grown princess sits in the classic one-carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI LG839670498 or 839670498. Listed at 16 retailers as of November 6, 2026, with a 298% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

1.05
Carat
F
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle41.6°
Pavilion angle38.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG839670498
Dimensions5.52 × 5.40 × 3.96 mm
L/W Ratio1.02
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
5.52 mm5.40 mm1.05 ctF / SI1
OriginLab Grown
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG839670498
Side View
Table 69.0%Crown 41.6°Girdle: MED-STKPavilion 38.9°Culet: NoneDepth 73.3%

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 6
Current: £658 GBP|Low: £114 GBP|High: £665 GBP|Avg: £285 GBP|-1.1%
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
Retailer 15
Retailer 16
November 6, 2026
Retailer 12£114 GBP
Retailer 14£131 GBP
Retailer 10£140 GBP
Retailer 5£162 GBP
Retailer 2£181 GBP
Retailer 16£240 GBP
Retailer 9£242 GBP
Retailer 7£247 GBP
Retailer 4£257 GBP
Retailer 11£267 GBP
Retailer 6£323 GBP
Retailer 15£366 GBP
Retailer 3£370 GBP
Retailer 8£387 GBP
Retailer 13£452 GBP
MOH London£658 GBP

27 data points across 16 retailers

16 retailers£114 GBP to £452 GBP

A
Cheapest Retailer
-
£114 GBP
A
Retailer 2
-
£131 GBP
View
B+
Retailer 3
-
£140 GBP
View
B+
Retailer 4
-
£162 GBP
View
A
Retailer 5
-
£181 GBP
View
Retailer 6
-
£240 GBP
View
Price last confirmed 8 days ago
B+
Retailer 7
-
£242 GBP
View
Retailer 8
-
£247 GBP
View
Price last confirmed 12 days ago
B+
Retailer 9
-
£257 GBP
View
B+
Retailer 10
-
£267 GBP
View
Retailer 11
-
£323 GBP
View
Price last confirmed 11 days ago
B+
Retailer 12
-
£366 GBP
View
Retailer 13
-
£370 GBP
View
Price last confirmed 9 days ago
B
Retailer 14
-
£387 GBP
View
B
Retailer 15
-
£452 GBP
View
Most Expensive
MOH London
LG839670498 · Oct 26
£658 GBP
View
Price last confirmed 11 days ago
15 more retailers have this diamond
Prices start from £114 GBPSave up to £338 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
1.05ct Princess
£114 GBP