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Oval|Lab Grown|IGI

1.51ct H VS1 Oval Lab Grown Diamond

EX • H/VS1 • IGI LG818625504

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG818625504

Diamond specifications and retailer prices

From £153 GBP
As of November 3, 2026
Save £605 GBP (80%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £757 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 H colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG818625504 or 818625504. Listed at 14 retailers as of November 3, 2026, with prices from £153 to £757, a £605 spread on the same certified stone. MOH London lists it at £757. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.51
Carat
H
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle34.9°
Pavilion angle37.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818625504
Dimensions9.11 × 6.52 × 3.83 mm
L/W Ratio1.40
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.11 mm6.52 mm1.51 ctH / VS1
OriginLab Grown
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG818625504
Side View
Table 63.0%Crown 34.9°Girdle: STK-THKPavilion 37.6°Culet: NoneDepth 58.7%

Caratlytics Score

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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 3
Current: £757 GBP|Low: £147 GBP|High: £1,230 GBP|Avg: £430 GBP|-0.2%
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
Retailer 15
November 5, 2026
Retailer 11£153 GBP
Retailer 12£171 GBP
Retailer 3£177 GBP
Retailer 6£190 GBP
Retailer 13£190 GBP
Retailer 9£254 GBP
Retailer 2£327 GBP
Retailer 14£327 GBP
Retailer 5£364 GBP
Retailer 4£435 GBP
Retailer 15£609 GBP
Retailer 10£611 GBP
Retailer 7£648 GBP
Retailer 8£756 GBP
MOH London£757 GBP

28 data points across 15 retailers

14 retailers£153 GBP to £757 GBP

A
Cheapest Retailer
-
£153 GBP
A
Retailer 2
-
£171 GBP
View
Final sale: no returns
A
Retailer 3
-
£177 GBP
View
A
Retailer 4
-
£190 GBP
View
Retailer 5
-
£190 GBP
View
Price last confirmed 11 days ago
A
Retailer 6
-
£327 GBP
View
B+
Retailer 7
-
£327 GBP
View
A
Retailer 8
-
£364 GBP
View
B+
Retailer 9
-
£435 GBP
View
B+
Retailer 10
-
£609 GBP
View
B
Retailer 11
-
£611 GBP
View
B
Retailer 12
-
£648 GBP
View
B
Retailer 13
-
£756 GBP
View
Most Expensive
B
MOH London
LG818625504 · Nov 5
£757 GBP
View
13 more retailers have this diamond
Prices start from £153 GBPSave up to £605 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
£153 GBP