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Round|Lab Grown|IGI

1.55ct G VS1 Round Lab Grown Diamond

EX • G/VS1 • IGI LG778658641

Shape and cutting style on the report: Round brilliant

Certificate IGI LG778658641

Diamond specifications and retailer prices

From £147 GBP
$197 USD
As of November 3, 2026
Save £703 GBP (83%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: £849 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 LG778658641 or 778658641. Listed at 22 retailers as of November 1, 2026, with prices from £147 to £849, a £703 spread on the same certified stone. MOH London lists it at £849. 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
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle41.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG778658641
Dimensions7.36 × 7.39 × 4.68 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.36 mm7.39 mm1.55 ctG / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG778658641
Side View
Table 56.0%Crown 34.5°Girdle: MED-STKPavilion 41.8°Culet: NoneDepth 63.5%

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: £849 GBP|Low: £147 GBP|High: £878 GBP|Avg: £418 GBP|-3.2%
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 5£147 GBP
Retailer 18£164 GBP
Retailer 17£170 GBP
Retailer 14£182 GBP
Retailer 6£183 GBP
Retailer 13£314 GBP
Retailer 3£316 GBP
Retailer 2£331 GBP
Retailer 7£353 GBP
Retailer 12£424 GBP
Retailer 16£430 GBP
Retailer 11£474 GBP
Retailer 15£584 GBP
Retailer 8£594 GBP
Retailer 4£624 GBP
Retailer 10£716 GBP
Retailer 9£760 GBP
MOH London£849 GBP

30 data points across 18 retailers

22 retailers£147 GBP to £849 GBP

A
Cheapest Retailer
-
£147 GBP
$197 USD
Retailer 2
-
£147 GBP
$197 USD
View
Price last confirmed 46 days ago
A
Retailer 3
-
£164 GBP
$220 USD
View
Final sale: no returns
A
Retailer 4
-
£170 GBP
$228 USD
View
Retailer 5
-
£180 GBP
$241 USD
View
Price last confirmed 45 days ago
A
Retailer 6
-
£182 GBP
$244 USD
View
Retailer 7
-
£183 GBP
$245 USD
View
Price last confirmed 9 days ago
A
Retailer 8
-
£314 GBP
ZAR 6,796 ZAR
View
B+
Retailer 9
-
£316 GBP
$424 USD
View
A
Retailer 10
-
£331 GBP
View
A
Retailer 11
-
£353 GBP
$473 USD
View
A
Retailer 12
-
£424 GBP
A$874 AUD
View
A
Retailer 13
-
£430 GBP
$577 USD
View
B+
Retailer 14
-
£474 GBP
$636 USD
View
B+
Retailer 15
-
£584 GBP
$783 USD
View
Retailer 16
-
£584 GBP
$783 USD
View
Price last confirmed 43 days ago
Retailer 17
-
£593 GBP
$795 USD
View
Price last confirmed 30 days ago
B+
Retailer 18
-
£594 GBP
SGD 1,076 SGD
View
B+
Retailer 19
-
£624 GBP
$837 USD
View
B
Retailer 20
-
£716 GBP
$960 USD
View
B
Retailer 21
-
£760 GBP
$1,019 USD
View
Most Expensive
B
MOH London
LG778658641 · Nov 1
£849 GBP
View
21 more retailers have this diamond
Prices start from £147 GBPSave up to £703 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
£147 GBP