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Round|Lab Grown|IGI

1.04ct F SI1 Round Lab Grown Diamond

ID • F/SI1 • IGI LG825655103

Shape and cutting style on the report: Round brilliant

Certificate IGI LG825655103

Diamond specifications and retailer prices

From £105 GBP
$141 USD
As of November 1, 2026
Save £509 GBP (83%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £614 GBP at MOH London · As of October 29, 2026
View at MOH London

About this 1.04ct lab-grown round diamond

This 1.04ct 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 LG825655103 or 825655103. Listed at 16 retailers as of October 29, 2026, with prices from £105 to £614, a £509 spread on the same certified stone. MOH London lists it at £614. 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

1.04
Carat
F
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.2°
Pavilion angle41.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG825655103
Dimensions6.57 × 6.61 × 3.96 mm
L/W Ratio1.01
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.57 mm6.61 mm1.04 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG825655103
Side View
Table 60.0%Crown 33.2°Girdle: THN-MEDPavilion 41.2°Culet: NoneDepth 60.0%

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: £614 GBP|Low: £104 GBP|High: £618 GBP|Avg: £276 GBP|-0.6%
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
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Retailer 16
November 1, 2026
Retailer 11£105 GBP
Retailer 16£117 GBP
Retailer 5£122 GBP
Retailer 6£131 GBP
Retailer 8£131 GBP
Retailer 7£213 GBP
Retailer 9£223 GBP
Retailer 2£229 GBP
Retailer 13£243 GBP
Retailer 4£291 GBP
Retailer 10£332 GBP
Retailer 3£362 GBP
Retailer 12£370 GBP
Retailer 14£419 GBP
Retailer 15£461 GBP
MOH London£614 GBP

24 data points across 16 retailers

16 retailers£105 GBP to £614 GBP

A
Cheapest Retailer
-
£105 GBP
$141 USD
A
Retailer 2
-
£117 GBP
$157 USD
View
Final sale: no returns
A
Retailer 3
-
£122 GBP
$164 USD
View
A
Retailer 4
-
£131 GBP
$175 USD
View
Retailer 5
-
£131 GBP
$175 USD
View
Price last confirmed 7 days ago
A
Retailer 6
-
£213 GBP
$285 USD
View
A
Retailer 7
-
£223 GBP
View
A
Retailer 8
-
£229 GBP
View
A
Retailer 9
-
£243 GBP
$326 USD
View
B+
Retailer 10
-
£291 GBP
$390 USD
View
B+
Retailer 11
-
£332 GBP
$445 USD
View
B+
Retailer 12
-
£362 GBP
SGD 655 SGD
View
B+
Retailer 13
-
£370 GBP
$496 USD
View
B+
Retailer 14
-
£419 GBP
$562 USD
View
B
Retailer 15
-
£461 GBP
$618 USD
View
Most Expensive
B
MOH London
LG825655103 · Oct 29
£614 GBP
View
15 more retailers have this diamond
Prices start from £105 GBPSave up to £509 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
1.04ct Round
£105 GBP