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Round|Lab Grown|IGI

1.05ct G VS1 Round Lab Grown Diamond

EX • G/VS1 • IGI LG778658578

Shape and cutting style on the report: Round brilliant

Certificate IGI LG778658578

Diamond specifications and retailer prices

From £113 GBP
$152 USD
As of October 29, 2026
Save £550 GBP (83%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: £663 GBP at MOH London · As of October 29, 2026
View at MOH London

About this 1.05ct lab-grown round diamond

This 1.05ct lab-grown round sits in the classic one-carat band, graded G colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG778658578 or 778658578. Listed at 21 retailers as of October 29, 2026, with prices from £113 to £663, a £550 spread on the same certified stone. MOH London lists it at £663. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.05
Carat
G
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.6°
Pavilion angle41.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG778658578
Dimensions6.58 × 3.97 × 3.97 mm
L/W Ratio1.66
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.58 mm3.97 mm1.05 ctG / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG778658578
Side View
Table 61.0%Crown 33.6°Girdle: MediumPavilion 41.1°Culet: NoneDepth 60.2%

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: Oct 29
Current: £663 GBP|Low: £110 GBP|High: £669 GBP|Avg: £285 GBP|-0.8%
MOH London
Retailer 2
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Retailer 19
October 30, 2026
Retailer 4£113 GBP
Retailer 5£126 GBP
Retailer 11£132 GBP
Retailer 8£141 GBP
Retailer 9£141 GBP
Retailer 13£228 GBP
Retailer 19£242 GBP
Retailer 16£243 GBP
Retailer 17£244 GBP
Retailer 15£257 GBP
Retailer 7£310 GBP
Retailer 3£344 GBP
Retailer 2£366 GBP
Retailer 12£379 GBP
Retailer 6£387 GBP
Retailer 10£454 GBP
Retailer 18£455 GBP
Retailer 14£493 GBP
MOH London£663 GBP

26 data points across 19 retailers

21 retailers£113 GBP to £663 GBP

A
Cheapest Retailer
-
£113 GBP
$152 USD
A
Retailer 2
-
£126 GBP
$169 USD
View
Final sale: no returns
A
Retailer 3
-
£132 GBP
$177 USD
View
A
Retailer 4
-
£141 GBP
$189 USD
View
Price last confirmed 7 days ago
A
Retailer 5
-
£141 GBP
$189 USD
View
A
Retailer 6
-
£228 GBP
$305 USD
View
Retailer 7
-
£236 GBP
View
Price last confirmed 18 days ago
A
Retailer 8
-
£242 GBP
ZAR 5,245 ZAR
View
A
Retailer 9
-
£243 GBP
View
A
Retailer 10
-
£244 GBP
View
A
Retailer 11
-
£257 GBP
$344 USD
View
B+
Retailer 12
-
£310 GBP
$415 USD
View
Price last confirmed 7 days ago
B+
Retailer 13
-
£344 GBP
A$709 AUD
View
B+
Retailer 14
-
£366 GBP
$490 USD
View
B+
Retailer 15
-
£379 GBP
$508 USD
View
B+
Retailer 16
-
£387 GBP
SGD 700 SGD
View
Retailer 17
-
£446 GBP
$598 USD
View
Price last confirmed 41 days ago
B
Retailer 18
-
£454 GBP
$608 USD
View
B
Retailer 19
-
£455 GBP
$610 USD
View
B
Retailer 20
-
£493 GBP
$660 USD
View
Most Expensive
B
MOH London
LG778658578 · Oct 29
£663 GBP
View
20 more retailers have this diamond
Prices start from £113 GBPSave up to £550 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
1.05ct Round
£113 GBP