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Round|Lab Grown|IGI

1.55ct F VS2 Round Lab Grown Diamond

ID • F/VS2 • IGI LG794610866

Shape and cutting style on the report: Round brilliant

Certificate IGI LG794610866

Diamond specifications and retailer prices

From £159 GBP
As of November 3, 2026
Save £646 GBP (80%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: £1,030 GBP at Brilliant Earth · As of October 16, 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 F colour (colourless) and VS2 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG794610866 or 794610866. Listed at 19 retailers as of November 3, 2026, with a 407% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.55
Carat
F
Colour
VS2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle31.9°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG794610866
Dimensions7.51 × 7.54 × 4.48 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
7.51 mm7.54 mm1.55 ctF / VS2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG794610866
Side View
Table 59.0%Crown 31.9°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 59.5%

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: £1,030 GBP|Low: £155 GBP|High: £1,030 GBP|Avg: £444 GBP
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
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Retailer 17
Retailer 18
November 5, 2026
Retailer 7£159 GBP
Retailer 3£177 GBP
Retailer 18£184 GBP
Retailer 14£196 GBP
Retailer 9£198 GBP
Retailer 4£337 GBP
Retailer 16£349 GBP
Retailer 2£359 GBP
Retailer 13£403 GBP
Retailer 17£442 GBP
Retailer 11£520 GBP
Retailer 15£632 GBP
Retailer 5£637 GBP
Retailer 6£671 GBP
Retailer 8£678 GBP
Retailer 12£788 GBP
Retailer 10£804 GBP
Brilliant Earth£1,030 GBP

32 data points across 18 retailers

19 retailers£159 GBP to £804 GBP

A
Cheapest Retailer
-
£159 GBP
A
Retailer 2
-
£177 GBP
View
Final sale: no returns
A
Retailer 3
-
£184 GBP
View
A
Retailer 4
-
£196 GBP
View
Retailer 5
-
£198 GBP
View
Price last confirmed 11 days ago
B+
Retailer 6
-
£337 GBP
View
A
Retailer 7
-
£349 GBP
View
A
Retailer 8
-
£359 GBP
View
A
Retailer 9
-
£403 GBP
View
A
Retailer 10
-
£442 GBP
View
B+
Retailer 11
-
£520 GBP
View
Retailer 12
-
£571 GBP
View
Price last confirmed 78 days ago
B+
Retailer 13
-
£632 GBP
View
B+
Retailer 14
-
£637 GBP
View
B+
Retailer 15
-
£671 GBP
View
Retailer 16
-
£678 GBP
View
Price last confirmed 7 days ago
B
Retailer 17
-
£788 GBP
View
B
Retailer 18
-
£804 GBP
View
Most Expensive
Brilliant Earth
21503339A · Oct 16
£1,030 GBP
$1,390 USD
View
Price last confirmed 19 days ago
18 more retailers have this diamond
Prices start from £159 GBPSave up to £646 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
£159 GBP