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Round|Lab Grown|IGI

1.55ct G VVS1 Round Lab Grown Diamond

ID • G/VVS1 • IGI LG813678766

Shape and cutting style on the report: Round brilliant

Certificate IGI LG813678766

Diamond specifications and retailer prices

From £148 GBP
$199 USD
As of November 1, 2026
Save £925 GBP (86%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: £1,073 GBP at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

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 VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG813678766 or 813678766. Listed at 23 retailers as of October 31, 2026, with prices from £148 to £1,073, a £925 spread on the same certified stone. Brilliant Earth lists it at £1,073. 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
VVS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle41.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG813678766
Dimensions7.38 × 7.41 × 4.61 mm
L/W Ratio1.00
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.38 mm7.41 mm1.55 ctG / VVS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG813678766
Side View
Table 59.0%Crown 35.5°Girdle: MediumPavilion 41.4°Culet: NoneDepth 62.3%

Caratlytics Score

How it works →
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 1
Current: £1,073 GBP|Low: £148 GBP|High: £1,177 GBP|Avg: £497 GBP|-8.9%
Brilliant Earth
Retailer 2
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Retailer 21
November 1, 2026
Retailer 9£148 GBP
Retailer 3£172 GBP
Retailer 17£184 GBP
Retailer 14£187 GBP
Retailer 5£259 GBP
Retailer 13£270 GBP
Retailer 16£318 GBP
Retailer 2£318 GBP
Retailer 15£337 GBP
Retailer 21£376 GBP
Retailer 20£406 GBP
Retailer 11£435 GBP
Retailer 19£468 GBP
Retailer 18£592 GBP
Retailer 8£632 GBP
Retailer 6£637 GBP
Retailer 12£730 GBP
Retailer 4£750 GBP
Retailer 7£786 GBP
Retailer 10£878 GBP
Brilliant Earth£1,073 GBP

31 data points across 21 retailers

23 retailers£148 GBP to £1,073 GBP

A
Cheapest Retailer
-
£148 GBP
$199 USD
A
Retailer 2
-
£172 GBP
$231 USD
View
A
Retailer 3
-
£184 GBP
$247 USD
View
Retailer 4
-
£187 GBP
$251 USD
View
Price last confirmed 8 days ago
A
Retailer 5
-
£219 GBP
HK$2,300 HKD
View
B+
Retailer 6
-
£259 GBP
$348 USD
View
A
Retailer 7
-
£270 GBP
View
A
Retailer 8
-
£318 GBP
€406 EUR
View
A
Retailer 9
-
£318 GBP
ZAR 6,893 ZAR
View
A
Retailer 10
-
£337 GBP
View
A
Retailer 11
-
£376 GBP
$505 USD
View
B+
Retailer 12
-
£406 GBP
$545 USD
View
B+
Retailer 13
-
£435 GBP
A$899 AUD
View
B+
Retailer 14
-
£468 GBP
$628 USD
View
B+
Retailer 15
-
£592 GBP
$794 USD
View
B+
Retailer 16
-
£632 GBP
$848 USD
View
B+
Retailer 17
-
£637 GBP
SGD 1,155 SGD
View
B
Retailer 18
-
£711 GBP
$954 USD
View
Retailer 19
-
£730 GBP
$980 USD
View
Price last confirmed 12 days ago
B
Retailer 20
-
£750 GBP
$1,006 USD
View
B
Retailer 21
-
£786 GBP
$1,055 USD
View
B
Retailer 22
-
£878 GBP
View
Most Expensive
B
Brilliant Earth
20593033A · Oct 31
£1,073 GBP
$1,440 USD
View
22 more retailers have this diamond
Prices start from £148 GBPSave up to £925 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