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Round|Lab Grown|IGI

1.40ct F VVS1 Round Lab Grown Diamond

ID • F/VVS1 • IGI LG812640170

Shape and cutting style on the report: Round brilliant

Certificate IGI LG812640170

Diamond specifications and retailer prices

From £143 GBP
$191 USD
As of November 1, 2026
Save £753 GBP (84%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £896 GBP at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 1.4ct lab-grown round diamond

This 1.4ct lab-grown round sits in the one-and-a-quarter to one-and-a-half carat band, graded F colour (colourless) and VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG812640170 or 812640170. Listed at 12 retailers as of October 31, 2026, with prices from £143 to £896, a £753 spread on the same certified stone. Brilliant Earth lists it at £896. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.40
Carat
F
Colour
VVS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.1°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG812640170
Dimensions7.23 × 7.28 × 4.33 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
7.23 mm7.28 mm1.40 ctF / VVS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG812640170
Side View
Table 60.0%Crown 33.1°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 59.8%

Caratlytics Score

How it works →
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: £896 GBP|Low: £137 GBP|High: £918 GBP|Avg: £499 GBP|-2.4%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 2, 2026
Retailer 9£143 GBP
Retailer 7£165 GBP
Retailer 6£301 GBP
Retailer 11£306 GBP
Retailer 3£422 GBP
Retailer 2£430 GBP
Retailer 10£567 GBP
Retailer 8£569 GBP
Retailer 12£619 GBP
Retailer 4£707 GBP
Retailer 5£826 GBP
Brilliant Earth£896 GBP

31 data points across 12 retailers

12 retailers£143 GBP to £896 GBP

A
Cheapest Retailer
-
£143 GBP
$191 USD
A
Retailer 2
-
£165 GBP
$221 USD
View
A
Retailer 3
-
£301 GBP
€384 EUR
View
Retailer 4
-
£306 GBP
View
Price last confirmed 16 days ago
B+
Retailer 5
-
£422 GBP
$565 USD
View
B+
Retailer 6
-
£430 GBP
A$887 AUD
View
B+
Retailer 7
-
£567 GBP
$760 USD
View
B
Retailer 8
-
£569 GBP
$763 USD
View
B
Retailer 9
-
£619 GBP
$829 USD
View
Retailer 10
-
£707 GBP
SGD 1,281 SGD
View
Price last confirmed 20 days ago
B
Retailer 11
-
£826 GBP
View
Most Expensive
B
Brilliant Earth
20806747A · Oct 31
£896 GBP
$1,200 USD
View
11 more retailers have this diamond
Prices start from £143 GBPSave up to £753 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
1.40ct Round
£143 GBP