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Round|Lab Grown|IGI

1.06ct G SI1 Round Lab Grown Diamond

EX • G/SI1 • IGI LG792689385

Shape and cutting style on the report: Round brilliant

Certificate IGI LG792689385

Diamond specifications and retailer prices

From £123 GBP
As of October 30, 2026
Save £340 GBP (74%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £620 GBP at MOH London · As of October 29, 2026
View at MOH London

About this 1.06ct lab-grown round diamond

This 1.06ct 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 LG792689385 or 792689385. Listed at 16 retailers as of October 30, 2026, with a 278% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

1.06
Carat
G
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.1°
Pavilion angle41.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG792689385
Dimensions6.62 × 6.57 × 3.97 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
HEARTS & ARROWS This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.62 mm6.57 mm1.06 ctG / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG792689385
Side View
Table 61.0%Crown 33.1°Girdle: MediumPavilion 41.2°Culet: NoneDepth 60.2%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 30
Current: £620 GBP|Low: £103 GBP|High: £626 GBP|Avg: £277 GBP|-0.8%
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
Retailer 16
Retailer 17
November 1, 2026
Retailer 3£106 GBP
Retailer 15£117 GBP
Retailer 14£123 GBP
Retailer 11£132 GBP
Retailer 9£132 GBP
Retailer 10£224 GBP
Retailer 7£241 GBP
Retailer 17£244 GBP
Retailer 2£292 GBP
Retailer 6£316 GBP
Retailer 13£337 GBP
Retailer 8£357 GBP
Retailer 5£363 GBP
Retailer 4£371 GBP
Retailer 12£422 GBP
Retailer 16£463 GBP
MOH London£620 GBP

30 data points across 17 retailers

16 retailers£123 GBP to £463 GBP

Retailer 1
-
£106 GBP
Price last confirmed 8 days ago
A
Retailer 2
-
£123 GBP
View
A
Retailer 3
-
£132 GBP
View
Retailer 4
-
£132 GBP
View
Price last confirmed 12 days ago
A
Retailer 5
-
£224 GBP
View
B+
Retailer 6
-
£241 GBP
View
A
Retailer 7
-
£244 GBP
View
B+
Retailer 8
-
£292 GBP
View
Retailer 9
-
£316 GBP
View
Price last confirmed 16 days ago
B
Retailer 10
-
£337 GBP
View
B
Retailer 11
-
£357 GBP
View
B
Retailer 12
-
£363 GBP
View
B+
Retailer 13
-
£371 GBP
View
B
Retailer 14
-
£422 GBP
View
B
Retailer 15
-
£463 GBP
View
Most Expensive
MOH London
LG792689385 · Oct 29
£620 GBP
View
Price last confirmed 8 days ago
15 more retailers have this diamond
Prices start from £123 GBPSave up to £340 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
1.06ct Round
£123 GBP