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Oval|Lab Grown|IGI

0.51ct D SI1 Oval Lab Grown Diamond

ID • D/SI1 • IGI LG814637983

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG814637983

Diamond specifications and retailer prices

From £70 GBP
As of November 5, 2026
Save £566 GBP (89%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £637 GBP at MOH London · As of November 2, 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 D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG814637983 or 814637983. Listed at 14 retailers as of November 2, 2026, with prices from £70 to £637, a £566 spread on the same certified stone. MOH London lists it at £637. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

0.51
Carat
D
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishVery Good
SymmetryFair
FluorescenceNone
Crown angle33.3°
Pavilion angle43.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG814637983
Dimensions6.26 × 4.57 × 2.86 mm
L/W Ratio1.37
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.26 mm4.57 mm0.51 ctD / SI1
OriginLab Grown
CutIdeal
PolishVery Good
SymmetryFair
FluorescenceNone
CertificateIGI LG814637983
Side View
Table 66.0%Crown 33.3°Girdle: THN-STKPavilion 43.1°Culet: NoneDepth 62.6%

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 5
Current: £637 GBP|Low: £70 GBP|High: £644 GBP|Avg: £218 GBP|-0.1%
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
November 6, 2026
Retailer 3£70 GBP
Retailer 9£81 GBP
Retailer 10£92 GBP
Retailer 11£92 GBP
Retailer 5£118 GBP
Retailer 7£131 GBP
Retailer 2£161 GBP
Retailer 8£166 GBP
Retailer 6£199 GBP
Retailer 13£249 GBP
Retailer 12£279 GBP
Retailer 4£316 GBP
MOH London£637 GBP

43 data points across 13 retailers

14 retailers£70 GBP to £637 GBP

A
Cheapest Retailer
-
£70 GBP
A
Retailer 2
-
£81 GBP
View
Retailer 3
-
£92 GBP
View
Price last confirmed 12 days ago
A
Retailer 4
-
£92 GBP
View
A
Retailer 5
-
£118 GBP
View
A
Retailer 6
-
£131 GBP
View
B+
Retailer 7
-
£161 GBP
View
A
Retailer 8
-
£166 GBP
View
B+
Retailer 9
-
£199 GBP
View
B+
Retailer 10
-
£249 GBP
View
B
Retailer 11
-
£279 GBP
View
B
Retailer 12
-
£291 GBP
View
B
Retailer 13
-
£316 GBP
View
Most Expensive
B
MOH London
LG814637983 · Nov 2
£637 GBP
View
13 more retailers have this diamond
Prices start from £70 GBPSave up to £566 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
£70 GBP