CaratHunter
Plans
Oval|Lab Grown|IGI

0.51ct F VVS1 Oval Lab Grown Diamond

VG • F/VVS1 • IGI LG851653394

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG851653394

Diamond specifications and retailer prices

From £71 GBP
As of November 3, 2026
Save £575 GBP (89%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £646 GBP at MOH London · As of November 2, 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 VVS1 clarity (very-very-slightly-included), with a very-good cut grade and certified by IGI LG851653394 or 851653394. Listed at 10 retailers as of November 2, 2026, with prices from £71 to £646, a £575 spread on the same certified stone. MOH London lists it at £646. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

0.51
Carat
F
Colour
VVS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle37.8°
Pavilion angle39.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG851653394
Dimensions6.36 × 4.52 × 2.75 mm
L/W Ratio1.41
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
6.36 mm4.52 mm0.51 ctF / VVS1
OriginLab Grown
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG851653394
Side View
Table 66.0%Crown 37.8°Girdle: MED-STKPavilion 39.9°Culet: NoneDepth 60.8%

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 3
Current: £646 GBP|Low: £71 GBP|High: £646 GBP|Avg: £271 GBP
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 4, 2026
Retailer 7£71 GBP
Retailer 9£82 GBP
Retailer 2£93 GBP
Retailer 6£166 GBP
Retailer 5£182 GBP
Retailer 3£212 GBP
Retailer 8£283 GBP
Retailer 4£316 GBP
Retailer 10£326 GBP
MOH London£646 GBP

3 data points across 10 retailers

10 retailers£71 GBP to £646 GBP

A
Cheapest Retailer
-
£71 GBP
A
Retailer 2
-
£82 GBP
View
A
Retailer 3
-
£93 GBP
View
B+
Retailer 4
-
£166 GBP
View
B+
Retailer 5
-
£182 GBP
View
B+
Retailer 6
-
£212 GBP
View
B
Retailer 7
-
£283 GBP
View
B
Retailer 8
-
£316 GBP
View
B
Retailer 9
-
£326 GBP
View
Most Expensive
B
MOH London
LG851653394 · Nov 2
£646 GBP
View
9 more retailers have this diamond
Prices start from £71 GBPSave up to £575 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
£71 GBP