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Round|Lab Grown|IGI

1.01ct F SI1 Round Lab Grown Diamond

ID • F/SI1 • IGI LG843605391

Shape and cutting style on the report: Round brilliant

Certificate IGI LG843605391

Diamond specifications and retailer prices

From £105 GBP
$141 USD
As of November 1, 2026
Save £507 GBP (83%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £612 GBP at MOH London · As of October 29, 2026
View at MOH London

About this 1.01ct lab-grown round diamond

This 1.01ct lab-grown round sits in the classic one-carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG843605391 or 843605391. Listed at 15 retailers as of October 29, 2026, with prices from £105 to £612, a £507 spread on the same certified stone. MOH London lists it at £612. 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

1.01
Carat
F
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.4°
Pavilion angle41.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG843605391
Dimensions6.46 × 6.48 × 3.95 mm
L/W Ratio1.00
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.46 mm6.48 mm1.01 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG843605391
Side View
Table 59.0%Crown 33.4°Girdle: THN-MEDPavilion 41.2°Culet: NoneDepth 61.0%

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 1
Current: £612 GBP|Low: £105 GBP|High: £626 GBP|Avg: £291 GBP|-2.1%
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
November 2, 2026
Retailer 14£105 GBP
Retailer 13£121 GBP
Retailer 7£130 GBP
Retailer 12£130 GBP
Retailer 5£203 GBP
Retailer 8£222 GBP
Retailer 2£228 GBP
Retailer 10£232 GBP
Retailer 6£243 GBP
Retailer 9£291 GBP
Retailer 15£313 GBP
Retailer 11£419 GBP
Retailer 3£442 GBP
Retailer 4£460 GBP
MOH London£612 GBP

18 data points across 15 retailers

15 retailers£105 GBP to £612 GBP

A
Cheapest Retailer
-
£105 GBP
$141 USD
A
Retailer 2
-
£121 GBP
$163 USD
View
A
Retailer 3
-
£130 GBP
$175 USD
View
Retailer 4
-
£130 GBP
$175 USD
View
Price last confirmed 8 days ago
A
Retailer 5
-
£203 GBP
$272 USD
View
A
Retailer 6
-
£222 GBP
View
A
Retailer 7
-
£228 GBP
View
A
Retailer 8
-
£232 GBP
€296 EUR
View
A
Retailer 9
-
£243 GBP
$326 USD
View
B+
Retailer 10
-
£291 GBP
$390 USD
View
B+
Retailer 11
-
£313 GBP
$420 USD
View
B
Retailer 12
-
£419 GBP
$562 USD
View
B
Retailer 13
-
£442 GBP
$593 USD
View
B
Retailer 14
-
£460 GBP
$617 USD
View
Most Expensive
B
MOH London
LG843605391 · Oct 29
£612 GBP
View
14 more retailers have this diamond
Prices start from £105 GBPSave up to £507 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
1.01ct Round
£105 GBP