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Oval|Lab Grown|IGI

2.50ct J SI1 Oval Lab Grown Diamond

ID • J/SI1 • IGI LG499190382

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG499190382

Diamond specifications and retailer prices

From £1,046 GBP
As of November 4, 2026
Save £5,398 GBP (84%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £6,444 GBP at MOH London · As of November 3, 2026
View at MOH London

About this 2.5ct lab-grown oval diamond

This 2.5ct lab-grown oval sits in the two to three carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG499190382 or 499190382. Listed at 10 retailers as of November 3, 2026, with prices from £1,046 to £6,444, a £5,398 spread on the same certified stone. MOH London lists it at £6,444. 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

2.50
Carat
J
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.9°
Pavilion angle39.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG499190382
Dimensions11.24 × 7.84 × 4.52 mm
L/W Ratio1.43
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
11.24 mm7.84 mm2.50 ctJ / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG499190382
Side View
Table 65.0%Crown 33.9°Girdle: THN-STKPavilion 39.6°Culet: NoneDepth 57.7%

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 4
Current: £6,444 GBP|Low: £1,046 GBP|High: £6,530 GBP|Avg: £3,327 GBP
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 3, 2026
Retailer 2£1,046 GBP
Retailer 4£2,191 GBP
Retailer 5£2,542 GBP
Retailer 7£2,660 GBP
Retailer 8£3,071 GBP
Retailer 3£3,653 GBP
Retailer 6£3,953 GBP
MOH London£6,444 GBP

13 data points across 8 retailers

10 retailers£1,046 GBP to £6,444 GBP

A
Cheapest Retailer
-
£1,046 GBP
B+
Retailer 2
-
£2,191 GBP
View
B+
Retailer 3
-
£2,384 GBP
View
Retailer 4
-
£2,542 GBP
View
Price last confirmed 25 days ago
B+
Retailer 5
-
£2,542 GBP
View
B+
Retailer 6
-
£2,660 GBP
View
B
Retailer 7
-
£3,177 GBP
View
B
Retailer 8
-
£3,653 GBP
View
B
Retailer 9
-
£3,953 GBP
View
Most Expensive
B
MOH London
LG499190382 · Nov 3
£6,444 GBP
View
9 more retailers have this diamond
Prices start from £1,046 GBPSave up to £5,398 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
2.50ct Oval
£1,046 GBP