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Round|Lab Grown|IGI

1.55ct G VS1 Round Lab Grown Diamond

ID • G/VS1 • IGI LG781631464

Shape and cutting style on the report: Round brilliant

Certificate IGI LG781631464

Diamond specifications and retailer prices

From £148 GBP
$199 USD
As of November 3, 2026
Save £711 GBP (83%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: £860 GBP at MOH London · As of November 1, 2026
View at MOH London

About this 1.55ct lab-grown round diamond

This 1.55ct lab-grown round sits in the one-and-a-half to two carat band, graded G colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG781631464 or 781631464. Listed at 22 retailers as of November 1, 2026, with prices from £148 to £860, a £711 spread on the same certified stone. MOH London lists it at £860. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.55
Carat
G
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.7°
Pavilion angle41.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG781631464
Dimensions7.49 × 7.42 × 4.59 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.49 mm7.42 mm1.55 ctG / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG781631464
Side View
Table 58.0%Crown 35.7°Girdle: MediumPavilion 41.1°Culet: NoneDepth 61.7%

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 3
Current: £860 GBP|Low: £148 GBP|High: £890 GBP|Avg: £416 GBP|-3.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
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Retailer 7
Retailer 8
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Retailer 10
Retailer 11
Retailer 12
Retailer 13
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Retailer 18
November 3, 2026
Retailer 7£148 GBP
Retailer 3£166 GBP
Retailer 18£172 GBP
Retailer 15£184 GBP
Retailer 8£185 GBP
Retailer 13£317 GBP
Retailer 4£319 GBP
Retailer 2£336 GBP
Retailer 9£353 GBP
Retailer 12£428 GBP
Retailer 17£432 GBP
Retailer 11£480 GBP
Retailer 16£591 GBP
Retailer 5£598 GBP
Retailer 6£631 GBP
Retailer 10£723 GBP
Retailer 14£749 GBP
MOH London£860 GBP

31 data points across 18 retailers

22 retailers£148 GBP to £860 GBP

A
Cheapest Retailer
-
£148 GBP
$199 USD
Retailer 2
-
£148 GBP
$199 USD
View
Price last confirmed 46 days ago
A
Retailer 3
-
£166 GBP
$223 USD
View
Final sale: no returns
A
Retailer 4
-
£172 GBP
$231 USD
View
Retailer 5
-
£181 GBP
$243 USD
View
Price last confirmed 45 days ago
A
Retailer 6
-
£184 GBP
$247 USD
View
Retailer 7
-
£185 GBP
$248 USD
View
Price last confirmed 9 days ago
A
Retailer 8
-
£317 GBP
ZAR 6,877 ZAR
View
B+
Retailer 9
-
£319 GBP
$428 USD
View
A
Retailer 10
-
£336 GBP
View
A
Retailer 11
-
£353 GBP
$474 USD
View
A
Retailer 12
-
£428 GBP
A$884 AUD
View
A
Retailer 13
-
£432 GBP
$580 USD
View
B+
Retailer 14
-
£480 GBP
$644 USD
View
Retailer 15
-
£591 GBP
$793 USD
View
Price last confirmed 43 days ago
B+
Retailer 16
-
£591 GBP
$793 USD
View
Retailer 17
-
£593 GBP
$795 USD
View
Price last confirmed 30 days ago
B+
Retailer 18
-
£598 GBP
SGD 1,084 SGD
View
B+
Retailer 19
-
£631 GBP
$846 USD
View
B
Retailer 20
-
£723 GBP
$970 USD
View
B
Retailer 21
-
£749 GBP
$1,004 USD
View
Most Expensive
B
MOH London
LG781631464 · Nov 1
£860 GBP
View
21 more retailers have this diamond
Prices start from £148 GBPSave up to £711 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
1.55ct Round
£148 GBP