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Round|Lab Grown|IGI

1.17ct F SI2 Round Lab Grown Diamond

ID • F/SI2 • IGI LG496138970

Shape and cutting style on the report: Round brilliant

Certificate IGI LG496138970

Diamond specifications and retailer prices

From £194 GBP
As of November 5, 2026
Save £869 GBP (82%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £1,062 GBP at MOH London · As of November 2, 2026
View at MOH London

About this 1.17ct lab-grown round diamond

This 1.17ct lab-grown round sits in the classic one-carat band, graded F colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG496138970 or 496138970. Listed at 13 retailers as of November 2, 2026, with prices from £194 to £1,062, a £869 spread on the same certified stone. MOH London lists it at £1,062. 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

1.17
Carat
F
Colour
SI2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG496138970
Dimensions6.78 × 6.83 × 4.18 mm
L/W Ratio1.01
Girdle conditionFaceted
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
6.78 mm6.83 mm1.17 ctF / SI2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG496138970
Side View
Table 57.5%Crown 35.5°Girdle: THN-MEDPavilion 40.9°Culet: NoneDepth 61.4%

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 5
Current: £1,062 GBP|Low: £194 GBP|High: £1,068 GBP|Avg: £477 GBP|-0.5%
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£194 GBP
Retailer 11£224 GBP
Retailer 10£240 GBP
Retailer 13£240 GBP
Retailer 8£241 GBP
Retailer 7£359 GBP
Retailer 6£460 GBP
Retailer 12£481 GBP
Retailer 2£499 GBP
Retailer 5£519 GBP
Retailer 4£716 GBP
Retailer 3£738 GBP
MOH London£1,062 GBP

21 data points across 13 retailers

13 retailers£194 GBP to £1,062 GBP

A
Cheapest Retailer
-
£194 GBP
A
Retailer 2
-
£224 GBP
View
A
Retailer 3
-
£240 GBP
View
Retailer 4
-
£240 GBP
View
Price last confirmed 12 days ago
B+
Retailer 5
-
£241 GBP
View
B+
Retailer 6
-
£359 GBP
View
B+
Retailer 7
-
£460 GBP
View
B
Retailer 8
-
£481 GBP
View
B
Retailer 9
-
£499 GBP
View
B
Retailer 10
-
£519 GBP
View
B
Retailer 11
-
£716 GBP
View
B
Retailer 12
-
£738 GBP
View
Most Expensive
B
MOH London
LG496138970 · Nov 2
£1,062 GBP
View
12 more retailers have this diamond
Prices start from £194 GBPSave up to £869 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
1.17ct Round
£194 GBP