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Oval|Lab Grown|IGI

0.51ct H VS1 Oval Lab Grown Diamond

ID • H/VS1 • IGI LG826679903

Shape and cutting style on the report: Oval modified brilliant

Certificate IGI LG826679903

Diamond specifications and retailer prices

From £107 GBP
$143 USD
As of October 30, 2026
Save £889 GBP (89%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £995 GBP at MOH London · As of October 29, 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 H colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG826679903 or 826679903. Listed at 17 retailers as of October 29, 2026, with prices from £107 to £995, a £889 spread on the same certified stone. MOH London lists it at £995. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

0.51
Carat
H
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle34.1°
Pavilion angle30.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG826679903
Dimensions6.07 × 4.37 × 2.55 mm
L/W Ratio1.39
Girdle conditionFaceted
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 Faint Blue
Top View
6.07 mm4.37 mm0.51 ctH / VS1
OriginLab Grown
CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG826679903
Side View
Table 64.0%Crown 34.1°Girdle: THK-VTKPavilion 30.8°Culet: NoneDepth 58.4%

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: Oct 30
Current: £995 GBP|Low: £107 GBP|High: £995 GBP|Avg: £470 GBP|+21.7%
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
October 31, 2026
Retailer 10£107 GBP
Retailer 9£134 GBP
Retailer 13£172 GBP
Retailer 3£218 GBP
Retailer 6£227 GBP
Retailer 12£276 GBP
Retailer 5£328 GBP
Retailer 4£363 GBP
Retailer 11£365 GBP
Retailer 2£403 GBP
Retailer 8£423 GBP
Retailer 7£720 GBP
MOH London£995 GBP

30 data points across 13 retailers

17 retailers£107 GBP to £995 GBP

A
Cheapest Retailer
-
£107 GBP
$143 USD
Final sale: no returns
A
Retailer 2
-
£134 GBP
HK$1,400 HKD
View
Retailer 3
-
£165 GBP
$221 USD
View
Price last confirmed 7 days ago
A
Retailer 4
-
£172 GBP
$230 USD
View
A
Retailer 5
-
£191 GBP
$256 USD
View
A
Retailer 6
-
£204 GBP
$273 USD
View
A
Retailer 7
-
£204 GBP
$273 USD
View
A
Retailer 8
-
£218 GBP
$292 USD
View
A
Retailer 9
-
£227 GBP
$304 USD
View
A
Retailer 10
-
£276 GBP
$370 USD
View
Retailer 11
-
£363 GBP
ZAR 7,863 ZAR
View
Price last confirmed 7 days ago
B+
Retailer 12
-
£365 GBP
$489 USD
View
B+
Retailer 13
-
£403 GBP
$540 USD
View
B+
Retailer 14
-
£423 GBP
$567 USD
View
B
Retailer 15
-
£656 GBP
$879 USD
View
B
Retailer 16
-
£720 GBP
$964 USD
View
Most Expensive
B
MOH London
LG826679903 · Oct 29
£995 GBP
View
16 more retailers have this diamond
Prices start from £107 GBPSave up to £889 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
£107 GBP