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Oval|Lab Grown|IGI

0.51ct F VS1 Oval Lab Grown Diamond

EX • F/VS1 • IGI LG844663571

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG844663571

Diamond specifications and retailer prices

From £86 GBP
As of October 29, 2026
Save £224 GBP (72%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £594 GBP at MOH London · As of October 26, 2026
View at MOH London

About this 0.51ct lab-grown oval diamond

This 0.51ct lab-grown oval sits in the half to three-quarter carat band, graded F colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG844663571 or 844663571. Listed at 14 retailers as of October 29, 2026, with a 262% 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

0.51
Carat
F
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle29.6°
Pavilion angle42.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG844663571
Dimensions6.51 × 4.45 × 2.82 mm
L/W Ratio1.46
Girdle conditionFaceted
Culet sizeNone
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
6.51 mm4.45 mm0.51 ctF / VS1
OriginLab Grown
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG844663571
Side View
Table 53.0%Crown 29.6°Girdle: MED-THKPavilion 42.3°Culet: NoneDepth 63.4%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 29
Current: £594 GBP|Low: £65 GBP|High: £597 GBP|Avg: £212 GBP|-0.5%
MOH London
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
October 29, 2026
Retailer 14£65 GBP
Retailer 4£75 GBP
Retailer 9£86 GBP
Retailer 12£86 GBP
Retailer 8£145 GBP
Retailer 13£145 GBP
Retailer 2£147 GBP
Retailer 3£172 GBP
Retailer 7£195 GBP
Retailer 11£259 GBP
Retailer 10£289 GBP
Retailer 6£303 GBP
Retailer 5£310 GBP
MOH London£594 GBP

11 data points across 14 retailers

14 retailers£86 GBP to £310 GBP

Retailer 1
-
£65 GBP
Price last confirmed 9 days ago
Retailer 2
-
£75 GBP
View
Price last confirmed 8 days ago
Retailer 3
-
£86 GBP
View
Price last confirmed 10 days ago
A
Retailer 4
-
£86 GBP
View
A
Retailer 5
-
£145 GBP
View
Retailer 6
-
£145 GBP
View
Price last confirmed 8 days ago
A
Retailer 7
-
£147 GBP
View
Retailer 8
-
£172 GBP
View
Price last confirmed 7 days ago
B+
Retailer 9
-
£195 GBP
View
Retailer 10
-
£259 GBP
View
Price last confirmed 7 days ago
Retailer 11
-
£289 GBP
View
Price last confirmed 9 days ago
B
Retailer 12
-
£303 GBP
View
B
Retailer 13
-
£310 GBP
View
Most Expensive
MOH London
LG844663571 · Oct 26
£594 GBP
View
Price last confirmed 8 days ago
13 more retailers have this diamond
Prices start from £86 GBPSave up to £224 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
0.51ct Oval
£86 GBP