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Round|Lab Grown|IGI

1.55ct F VVS1 Round Lab Grown Diamond

ID • F/VVS1 • IGI LG811672155

Shape and cutting style on the report: Round brilliant

Certificate IGI LG811672155

Diamond specifications and retailer prices

From £182 GBP
$244 USD
As of November 1, 2026
Save £752 GBP (80%) vs most expensive(unlock to see where)
26 retailers carry this diamond
Most expensive: £1,082 GBP at Brilliant Earth · As of October 22, 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 VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG811672155 or 811672155. Listed at 26 retailers as of November 1, 2026, with a 413% 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
VVS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.4°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG811672155
Dimensions7.42 × 7.36 × 4.61 mm
L/W Ratio1.01
Girdle conditionFaceted
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
7.42 mm7.36 mm1.55 ctF / VVS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG811672155
Side View
Table 57.0%Crown 34.4°Girdle: MED-STKPavilion 41°Culet: NoneDepth 62.3%

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 1
Current: £1,082 GBP|Low: £182 GBP|High: £1,119 GBP|Avg: £554 GBP|-3.3%
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
Retailer 16
Retailer 17
November 2, 2026
Retailer 8£182 GBP
Retailer 3£284 GBP
Retailer 2£309 GBP
Retailer 14£339 GBP
Retailer 11£348 GBP
Retailer 10£371 GBP
Retailer 6£435 GBP
Retailer 5£449 GBP
Retailer 17£455 GBP
Retailer 15£471 GBP
Retailer 13£520 GBP
Retailer 7£688 GBP
Retailer 12£809 GBP
Retailer 4£822 GBP
Retailer 16£899 GBP
Retailer 9£934 GBP
Brilliant Earth£1,082 GBP

34 data points across 17 retailers

26 retailers£182 GBP to £934 GBP

Retailer 1
-
£163 GBP
$218 USD
Price last confirmed 22 days ago
Retailer 2
-
£175 GBP
$235 USD
View
Price last confirmed 41 days ago
A
Retailer 3
-
£182 GBP
$244 USD
View
Final sale: no returns
Retailer 4
-
£202 GBP
$270 USD
View
Price last confirmed 21 days ago
Retailer 5
-
£202 GBP
$270 USD
View
Price last confirmed 31 days ago
Retailer 6
-
£204 GBP
$273 USD
View
Price last confirmed 41 days ago
Retailer 7
-
£215 GBP
$288 USD
View
Price last confirmed 38 days ago
B+
Retailer 8
-
£284 GBP
$380 USD
View
A
Retailer 9
-
£309 GBP
View
A
Retailer 10
-
£339 GBP
€433 EUR
View
A
Retailer 11
-
£348 GBP
ZAR 7,540 ZAR
View
A
Retailer 12
-
£371 GBP
View
B+
Retailer 13
-
£435 GBP
$583 USD
View
B+
Retailer 14
-
£449 GBP
$601 USD
View
B+
Retailer 15
-
£455 GBP
$609 USD
View
B+
Retailer 16
-
£471 GBP
A$971 AUD
View
B+
Retailer 17
-
£520 GBP
$697 USD
View
Retailer 18
-
£649 GBP
$869 USD
View
Price last confirmed 25 days ago
B+
Retailer 19
-
£688 GBP
$922 USD
View
Retailer 20
-
£699 GBP
$937 USD
View
Price last confirmed 42 days ago
B+
Retailer 21
-
£736 GBP
$986 USD
View
B
Retailer 22
-
£809 GBP
View
B
Retailer 23
-
£822 GBP
$1,101 USD
View
Retailer 24
-
£899 GBP
$1,205 USD
View
Price last confirmed 15 days ago
B
Retailer 25
-
£934 GBP
$1,251 USD
View
Most Expensive
Brilliant Earth
20537387A · Oct 22
£1,082 GBP
$1,450 USD
View
Price last confirmed 10 days ago
25 more retailers have this diamond
Prices start from £182 GBPSave up to £752 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
£182 GBP