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Round|Lab Grown|IGI

1.55ct G VS1 Round Lab Grown Diamond

ID • G/VS1 • IGI LG825655270

Shape and cutting style on the report: Round brilliant

Certificate IGI LG825655270

Diamond specifications and retailer prices

From £155 GBP
$208 USD
As of November 3, 2026
Save £629 GBP (80%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £784 GBP at Brilliance · As of November 1, 2026
View at Brilliance

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 LG825655270 or 825655270. Listed at 18 retailers as of November 1, 2026, with prices from £155 to £784, a £629 spread on the same certified stone. Brilliance lists it at £784. 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 angle34.7°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG825655270
Dimensions7.45 × 7.51 × 4.55 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
7.45 mm7.51 mm1.55 ctG / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG825655270
Side View
Table 57.0%Crown 34.7°Girdle: MediumPavilion 40.7°Culet: NoneDepth 61.0%

Caratlytics Score

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A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 3
Current: £784 GBP|Low: £155 GBP|High: £793 GBP|Avg: £416 GBP|-1.0%
Brilliance
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 18
November 3, 2026
Retailer 10£155 GBP
Retailer 8£173 GBP
Retailer 5£180 GBP
Retailer 7£192 GBP
Retailer 18£192 GBP
Retailer 13£300 GBP
Retailer 14£332 GBP
Retailer 16£333 GBP
Retailer 2£354 GBP
Retailer 3£356 GBP
Retailer 15£440 GBP
Retailer 12£448 GBP
Retailer 11£511 GBP
Retailer 4£619 GBP
Retailer 9£624 GBP
Retailer 6£659 GBP
Retailer 17£773 GBP
Brilliance£784 GBP

26 data points across 18 retailers

18 retailers£155 GBP to £784 GBP

A
Cheapest Retailer
-
£155 GBP
$208 USD
A
Retailer 2
-
£173 GBP
$232 USD
View
Final sale: no returns
A
Retailer 3
-
£180 GBP
$242 USD
View
A
Retailer 4
-
£192 GBP
$258 USD
View
Retailer 5
-
£192 GBP
$258 USD
View
Price last confirmed 9 days ago
A
Retailer 6
-
£300 GBP
View
A
Retailer 7
-
£332 GBP
ZAR 7,201 ZAR
View
B+
Retailer 8
-
£333 GBP
$446 USD
View
A
Retailer 9
-
£354 GBP
View
A
Retailer 10
-
£356 GBP
$477 USD
View
A
Retailer 11
-
£440 GBP
$590 USD
View
A
Retailer 12
-
£448 GBP
A$925 AUD
View
B+
Retailer 13
-
£511 GBP
$685 USD
View
B+
Retailer 14
-
£619 GBP
$830 USD
View
B+
Retailer 15
-
£624 GBP
SGD 1,131 SGD
View
B+
Retailer 16
-
£659 GBP
$883 USD
View
Retailer 17
-
£773 GBP
View
Price last confirmed 8 days ago
Most Expensive
B
Brilliance
D45917972 · Nov 1
£784 GBP
$1,052 USD
View
17 more retailers have this diamond
Prices start from £155 GBPSave up to £629 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
£155 GBP