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Oval|Lab Grown|IGI

1.51ct E SI1 Oval Lab Grown Diamond

VG • E/SI1 • IGI LG839647857

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG839647857

Diamond specifications and retailer prices

From £162 GBP
As of November 6, 2026
Save £678 GBP (81%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £840 GBP at MOH London · As of November 5, 2026
View at MOH London

About this 1.51ct lab-grown oval diamond

This 1.51ct lab-grown oval sits in the one-and-a-half to two carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI LG839647857 or 839647857. Listed at 11 retailers as of November 5, 2026, with prices from £162 to £840, a £678 spread on the same certified stone. MOH London lists it at £840. 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

1.51
Carat
E
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.5°
Pavilion angle38.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG839647857
Dimensions9.46 × 6.28 × 3.87 mm
L/W Ratio1.51
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.46 mm6.28 mm1.51 ctE / SI1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG839647857
Side View
Table 56.0%Crown 36.5°Girdle: MED-THKPavilion 38.4°Culet: NoneDepth 61.6%

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 6
Current: £840 GBP|Low: £162 GBP|High: £840 GBP|Avg: £404 GBP
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 5£162 GBP
Retailer 9£200 GBP
Retailer 3£229 GBP
Retailer 2£294 GBP
Retailer 6£315 GBP
Retailer 4£324 GBP
Retailer 7£463 GBP
Retailer 10£586 GBP
Retailer 8£676 GBP
MOH London£840 GBP

7 data points across 10 retailers

11 retailers£162 GBP to £840 GBP

A
Cheapest Retailer
-
£162 GBP
Final sale: no returns
A
Retailer 2
-
£200 GBP
View
A
Retailer 3
-
£229 GBP
View
A
Retailer 4
-
£294 GBP
View
B+
Retailer 5
-
£315 GBP
View
A
Retailer 6
-
£324 GBP
View
B+
Retailer 7
-
£463 GBP
View
B
Retailer 8
-
£586 GBP
View
Retailer 9
-
£676 GBP
View
Price last confirmed 9 days ago
B
Retailer 10
-
£784 GBP
View
Most Expensive
B
MOH London
LG839647857 · Nov 5
£840 GBP
View
10 more retailers have this diamond
Prices start from £162 GBPSave up to £678 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
1.51ct Oval
£162 GBP