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Oval|Lab Grown|IGI

2.51ct J SI1 Oval Lab Grown Diamond

ID • J/SI1 • IGI LG451056210

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG451056210

Diamond specifications and retailer prices

From £1,053 GBP
As of November 6, 2026
Save £5,399 GBP (84%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £6,452 GBP at MOH London · As of November 5, 2026
View at MOH London

About this 2.51ct lab-grown oval diamond

This 2.51ct 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 LG451056210 or 451056210. Listed at 11 retailers as of November 5, 2026, with prices from £1,053 to £6,452, a £5,399 spread on the same certified stone. MOH London lists it at £6,452. 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

2.51
Carat
J
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.4°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG451056210
Dimensions10.49 × 7.85 × 4.80 mm
L/W Ratio1.34
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
10.49 mm7.85 mm2.51 ctJ / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG451056210
Side View
Table 58.0%Crown 35.4°Girdle: MED-STKPavilion 40.3°Culet: NoneDepth 61.1%

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 6
Current: £6,452 GBP|Low: £1,053 GBP|High: £9,133 GBP|Avg: £3,868 GBP|-0.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 5, 2026
Retailer 2£1,053 GBP
Retailer 4£2,200 GBP
Retailer 7£2,463 GBP
Retailer 5£2,552 GBP
Retailer 8£2,671 GBP
Retailer 9£3,082 GBP
Retailer 3£3,667 GBP
Retailer 6£3,968 GBP
MOH London£6,452 GBP
Retailer 10£9,133 GBP

15 data points across 10 retailers

11 retailers£1,053 GBP to £6,452 GBP

A
Cheapest Retailer
-
£1,053 GBP
B+
Retailer 2
-
£2,200 GBP
View
B+
Retailer 3
-
£2,394 GBP
View
B+
Retailer 4
-
£2,463 GBP
View
Final sale: no returns
B+
Retailer 5
-
£2,552 GBP
View
Retailer 6
-
£2,552 GBP
View
Price last confirmed 25 days ago
B+
Retailer 7
-
£2,671 GBP
View
B
Retailer 8
-
£3,189 GBP
View
B
Retailer 9
-
£3,667 GBP
View
B
Retailer 10
-
£3,968 GBP
View
Most Expensive
B
MOH London
LG451056210 · Nov 5
£6,452 GBP
View
10 more retailers have this diamond
Prices start from £1,053 GBPSave up to £5,399 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
2.51ct Oval
£1,053 GBP