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Round|Lab Grown|IGI

1.11ct G SI1 Round Lab Grown Diamond

EX • G/SI1 • IGI LG799635478

Shape and cutting style on the report: Round brilliant

Certificate IGI LG799635478

Diamond specifications and retailer prices

From £111 GBP
As of November 5, 2026
Save £535 GBP (83%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £646 GBP at MOH London · As of November 4, 2026
View at MOH London

About this 1.11ct lab-grown round diamond

This 1.11ct lab-grown round sits in the classic one-carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG799635478 or 799635478. Listed at 17 retailers as of November 4, 2026, with prices from £111 to £646, a £535 spread on the same certified stone. MOH London lists it at £646. 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

1.11
Carat
G
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.6°
Pavilion angle41.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG799635478
Dimensions6.64 × 6.70 × 4.11 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
6.64 mm6.70 mm1.11 ctG / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG799635478
Side View
Table 56.0%Crown 33.6°Girdle: MED-STKPavilion 41.4°Culet: NoneDepth 61.6%

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: £646 GBP|Low: £111 GBP|High: £678 GBP|Avg: £302 GBP|-4.3%
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
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Retailer 15
November 6, 2026
Retailer 14£111 GBP
Retailer 13£129 GBP
Retailer 7£138 GBP
Retailer 9£236 GBP
Retailer 4£254 GBP
Retailer 8£260 GBP
Retailer 11£260 GBP
Retailer 3£262 GBP
Retailer 2£306 GBP
Retailer 10£319 GBP
Retailer 15£322 GBP
Retailer 6£445 GBP
Retailer 12£470 GBP
Retailer 5£486 GBP
MOH London£646 GBP

37 data points across 15 retailers

17 retailers£111 GBP to £646 GBP

A
Cheapest Retailer
-
£111 GBP
A
Retailer 2
-
£129 GBP
View
A
Retailer 3
-
£138 GBP
View
Retailer 4
-
£143 GBP
View
Price last confirmed 12 days ago
A
Retailer 5
-
£236 GBP
View
B+
Retailer 6
-
£254 GBP
View
A
Retailer 7
-
£260 GBP
View
A
Retailer 8
-
£260 GBP
View
B+
Retailer 9
-
£262 GBP
View
B+
Retailer 10
-
£306 GBP
View
B+
Retailer 11
-
£319 GBP
View
B+
Retailer 12
-
£322 GBP
View
B+
Retailer 13
-
£357 GBP
View
B
Retailer 14
-
£445 GBP
View
B
Retailer 15
-
£470 GBP
View
B
Retailer 16
-
£486 GBP
View
Most Expensive
B
MOH London
LG799635478 · Nov 4
£646 GBP
View
16 more retailers have this diamond
Prices start from £111 GBPSave up to £535 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
1.11ct Round
£111 GBP