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Oval|Lab Grown|IGI

0.51ct F VS1 Oval Lab Grown Diamond

VG • F/VS1 • IGI LG851653351

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG851653351

Diamond specifications and retailer prices

From £146 GBP
As of November 4, 2026
Save £158 GBP (52%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: £304 GBP at Taylor and Hart · As of November 4, 2026
View at Taylor and Hart

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 very-good cut grade and certified by IGI LG851653351 or 851653351. Listed at 5 retailers as of November 4, 2026, with prices from £146 to £304, a £158 spread on the same certified stone. Taylor and Hart lists it at £304. 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
VS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle34.1°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG851653351
Dimensions6.40 × 4.51 × 2.79 mm
L/W Ratio1.42
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
6.40 mm4.51 mm0.51 ctF / VS1
OriginLab Grown
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG851653351
Side View
Table 61.0%Crown 34.1°Girdle: STK-THKPavilion 40.4°Culet: NoneDepth 61.9%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 4
Current: £195 GBP|Low: £146 GBP|High: £304 GBP|Avg: £223 GBP
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Taylor and Hart
November 4, 2026
Retailer 4£146 GBP
Retailer 3£172 GBP
Retailer 1£195 GBP
Retailer 2£289 GBP
Taylor and Hart£304 GBP

2 data points across 5 retailers

5 retailers£146 GBP to £304 GBP

A
Cheapest Retailer
-
£146 GBP
B+
Retailer 2
-
£172 GBP
View
B+
Retailer 3
-
£195 GBP
View
B
Retailer 4
-
£289 GBP
View
Most Expensive
B
Taylor and Hart
POYVRBU · Nov 4
£304 GBP
$408 USD
View
4 more retailers have this diamond
Prices start from £146 GBPSave up to £158 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
£146 GBP