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Oval|Lab Grown|IGI

2.58ct J SI1 Oval Lab Grown Diamond

ID • J/SI1 • IGI LG451056249

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG451056249

Diamond specifications and retailer prices

From £1,173 GBP
$1,570 USD
As of November 6, 2026
1 retailer carries this diamond
Only listing: £1,173 GBP at Brilliant Earth
Only one retailer lists this diamond right now, and it is shown above, so there is nothing to unlock. Similar diamonds are carried by several retailers.
View at Brilliant Earth

About this 2.58ct lab-grown oval diamond

This 2.58ct 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 LG451056249 or 451056249. Listed at a single retailer as of November 6, 2026. If it later appears at another store, Carat Hunter will surface the price comparison automatically. 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

2.58
Carat
J
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle35.7°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG451056249
Dimensions10.83 × 7.79 × 4.81 mm
L/W Ratio1.39
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
10.83 mm7.79 mm2.58 ctJ / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG451056249
Side View
Table 60.0%Crown 35.7°Girdle: THN-STKPavilion 41°Culet: NoneDepth 61.7%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: £1,173 GBP|Low: £1,173 GBP|High: £8,617 GBP|Avg: £3,973 GBP|-53.0%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
August 10, 2026
Brilliant Earth£1,173 GBP
Retailer 2£1,644 GBP
Retailer 5£2,507 GBP
Retailer 6£2,900 GBP
Retailer 3£3,329 GBP
Retailer 4£3,578 GBP
Retailer 7£8,540 GBP

59 data points across 7 retailers

1 retailer

B+
Brilliant Earth
19758640A · Nov 6
£1,173 GBP
$1,570 USD
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B+
2.58ct Oval
£1,173 GBP