CaratHunter
Plans
Oval|Lab Grown|IGI

0.51ct I VS1 Oval Lab Grown Diamond

VG • I/VS1 • IGI LG407941428

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG407941428

Diamond specifications and retailer prices

From £227 GBP
$305 USD
As of November 3, 2026
Save £909 GBP (80%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £1,136 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 I colour (near-colourless) and VS1 clarity (very-slightly-included), with a very-good cut grade and certified by IGI LG407941428 or 407941428. Listed at 13 retailers as of October 29, 2026, with prices from £227 to £1,136, a £909 spread on the same certified stone. MOH London lists it at £1,136. 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
I
Colour
VS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryGood
FluorescenceNone
Crown angle33.4°
Pavilion angle41.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG407941428
Dimensions6.36 × 4.63 × 2.84 mm
L/W Ratio1.37
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory grown diamond was created by chemical vapor deposition process (CVD) Type IIa
Top View
6.36 mm4.63 mm0.51 ctI / VS1
OriginLab Grown
CutVery Good
PolishVery Good
SymmetryGood
FluorescenceNone
CertificateIGI LG407941428
Side View
Table 60.0%Crown 33.4°Girdle: MED-THKPavilion 41.9°Culet: NoneDepth 61.3%

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: £1,136 GBP|Low: £218 GBP|High: £1,144 GBP|Avg: £572 GBP|-0.6%
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
November 2, 2026
Retailer 11£227 GBP
Retailer 7£246 GBP
Retailer 14£255 GBP
Retailer 3£282 GBP
Retailer 12£282 GBP
Retailer 4£399 GBP
Retailer 13£460 GBP
Retailer 2£512 GBP
Retailer 9£516 GBP
Retailer 5£555 GBP
Retailer 10£867 GBP
Retailer 8£1,102 GBP
Retailer 6£1,134 GBP
MOH London£1,136 GBP

23 data points across 14 retailers

13 retailers£227 GBP to £1,136 GBP

B+
Cheapest Retailer
-
£227 GBP
$305 USD
A
Retailer 2
-
£246 GBP
$330 USD
View
B+
Retailer 3
-
£255 GBP
$342 USD
View
Final sale: no returns
B+
Retailer 4
-
£264 GBP
$354 USD
View
B+
Retailer 5
-
£282 GBP
$378 USD
View
Retailer 6
-
£282 GBP
$378 USD
View
Price last confirmed 9 days ago
B
Retailer 7
-
£460 GBP
$617 USD
View
B
Retailer 8
-
£512 GBP
ZAR 11,097 ZAR
View
Retailer 9
-
£516 GBP
€659 EUR
View
Price last confirmed 7 days ago
B
Retailer 10
-
£867 GBP
$1,163 USD
View
B
Retailer 11
-
£907 GBP
$1,216 USD
View
C
Retailer 12
-
£1,102 GBP
View
Most Expensive
B
MOH London
LG407941428 · Oct 29
£1,136 GBP
View
12 more retailers have this diamond
Prices start from £227 GBPSave up to £909 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
£227 GBP