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Radiant|Lab Grown|IGI

0.91ct H SI1 Radiant Lab Grown Diamond

ID • H/SI1 • IGI LG522225554

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

Certificate IGI LG522225554

Diamond specifications and retailer prices

From £93 GBP
As of November 6, 2026
Save £866 GBP (90%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £958 GBP at MOH London · As of November 5, 2026
View at MOH London

About this 0.91ct lab-grown radiant diamond

This 0.91ct lab-grown radiant sits in the just-under-one-carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG522225554 or 522225554. Listed at 17 retailers as of November 5, 2026, with prices from £93 to £958, a £866 spread on the same certified stone. MOH London lists it at £958. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

0.91
Carat
H
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40.4°
Pavilion angle36.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG522225554
Dimensions7.01 × 4.82 × 3.22 mm
L/W Ratio1.45
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
7.01 mm4.82 mm0.91 ctH / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG522225554
Side View
Table 67.0%Crown 40.4°Girdle: STK-THKPavilion 36.1°Culet: NoneDepth 66.8%

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: £958 GBP|Low: £89 GBP|High: £973 GBP|Avg: £344 GBP|-1.3%
MOH London
Retailer 2
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November 5, 2026
Retailer 18£93 GBP
Retailer 8£104 GBP
Retailer 3£108 GBP
Retailer 2£123 GBP
Retailer 4£123 GBP
Retailer 19£157 GBP
Retailer 17£162 GBP
Retailer 5£209 GBP
Retailer 15£222 GBP
Retailer 11£227 GBP
Retailer 14£237 GBP
Retailer 9£345 GBP
Retailer 13£359 GBP
Retailer 20£370 GBP
Retailer 16£391 GBP
Retailer 7£412 GBP
Retailer 10£666 GBP
Retailer 12£674 GBP
Retailer 6£711 GBP
MOH London£958 GBP

26 data points across 20 retailers

17 retailers£93 GBP to £958 GBP

A
Cheapest Retailer
-
£93 GBP
A
Retailer 2
-
£104 GBP
View
Final sale: no returns
A
Retailer 3
-
£108 GBP
View
A
Retailer 4
-
£123 GBP
View
Retailer 5
-
£123 GBP
View
Price last confirmed 13 days ago
B+
Retailer 6
-
£157 GBP
View
A
Retailer 7
-
£162 GBP
View
A
Retailer 8
-
£222 GBP
View
A
Retailer 9
-
£237 GBP
View
A
Retailer 10
-
£264 GBP
View
B+
Retailer 11
-
£359 GBP
View
B+
Retailer 12
-
£370 GBP
View
B+
Retailer 13
-
£391 GBP
View
B+
Retailer 14
-
£412 GBP
View
B
Retailer 15
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£666 GBP
View
B
Retailer 16
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£711 GBP
View
Most Expensive
B
MOH London
LG522225554 · Nov 5
£958 GBP
View
16 more retailers have this diamond
Prices start from £93 GBPSave up to £866 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
0.91ct Radiant
£93 GBP