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Radiant|Lab Grown|IGI

1.55ct F VS1 Radiant Lab Grown Diamond

ID • F/VS1 • IGI LG838644800

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI LG838644800

Diamond specifications and retailer prices

From £145 GBP
As of November 4, 2026
Save £593 GBP (80%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £834 GBP at MOH London · As of October 21, 2026
View at MOH London

About this 1.55ct lab-grown radiant diamond

This 1.55ct lab-grown radiant sits in the one-and-a-half to two carat band, graded F colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG838644800 or 838644800. Listed at 13 retailers as of November 4, 2026, with a 409% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.55
Carat
F
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle46.6°
Pavilion angle34.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG838644800
Dimensions7.97 × 5.67 × 3.86 mm
L/W Ratio1.41
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.97 mm5.67 mm1.55 ctF / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG838644800
Side View
Table 65.0%Crown 46.6°Girdle: MED-STKPavilion 34.9°Culet: NoneDepth 68.1%

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: £834 GBP|Low: £139 GBP|High: £850 GBP|Avg: £515 GBP|-1.8%
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
November 6, 2026
Retailer 9£145 GBP
Retailer 12£168 GBP
Retailer 6£209 GBP
Retailer 3£301 GBP
Retailer 13£414 GBP
Retailer 4£426 GBP
Retailer 10£578 GBP
Retailer 11£580 GBP
Retailer 8£620 GBP
Retailer 7£662 GBP
Retailer 5£725 GBP
Retailer 2£738 GBP
MOH London£834 GBP

32 data points across 13 retailers

13 retailers£145 GBP to £738 GBP

A
Cheapest Retailer
-
£145 GBP
A
Retailer 2
-
£168 GBP
View
A
Retailer 3
-
£209 GBP
View
A
Retailer 4
-
£301 GBP
View
A
Retailer 5
-
£414 GBP
View
A
Retailer 6
-
£426 GBP
View
B+
Retailer 7
-
£578 GBP
View
B+
Retailer 8
-
£580 GBP
View
B+
Retailer 9
-
£620 GBP
View
B+
Retailer 10
-
£662 GBP
View
Retailer 11
-
£725 GBP
View
Price last confirmed 26 days ago
B+
Retailer 12
-
£738 GBP
View
Most Expensive
MOH London
LG838644800 · Oct 21
£834 GBP
View
Price last confirmed 15 days ago
12 more retailers have this diamond
Prices start from £145 GBPSave up to £593 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
1.55ct Radiant
£145 GBP