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Round|Lab Grown|IGI

2.50ct I SI1 Round Lab Grown Diamond

EX • I/SI1 • IGI LG476187393

Shape and cutting style on the report: Round brilliant

Certificate IGI LG476187393

Diamond specifications and retailer prices

From £1,142 GBP
$1,530 USD
As of October 30, 2026
Save £6,048 GBP (84%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £7,190 GBP at MOH London · As of October 29, 2026
View at MOH London

About this 2.5ct lab-grown round diamond

This 2.5ct lab-grown round sits in the two to three carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG476187393 or 476187393. Listed at 11 retailers as of October 29, 2026, with prices from £1,142 to £7,190, a £6,048 spread on the same certified stone. MOH London lists it at £7,190. 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
I
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.4°
Pavilion angle40.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG476187393
Dimensions8.56 × 8.62 × 5.41 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
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
8.56 mm8.62 mm2.50 ctI / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG476187393
Side View
Table 55.5%Crown 36.4°Girdle: MED-STKPavilion 40.2°Culet: NoneDepth 63.0%

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: Oct 30
Current: £7,190 GBP|Low: £1,142 GBP|High: £10,097 GBP|Avg: £4,212 GBP|-0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 30, 2026
Retailer 2£1,142 GBP
Retailer 4£2,432 GBP
Retailer 7£2,724 GBP
Retailer 5£2,822 GBP
Retailer 8£2,937 GBP
Retailer 9£3,283 GBP
Retailer 3£3,892 GBP
Retailer 6£4,379 GBP
MOH London£7,190 GBP
Retailer 10£10,097 GBP

14 data points across 10 retailers

11 retailers£1,142 GBP to £7,190 GBP

A
Cheapest Retailer
-
£1,142 GBP
$1,530 USD
B+
Retailer 2
-
£2,432 GBP
$3,259 USD
View
B+
Retailer 3
-
£2,646 GBP
$3,546 USD
View
B+
Retailer 4
-
£2,724 GBP
$3,650 USD
View
Final sale: no returns
B
Retailer 5
-
£2,822 GBP
$3,781 USD
View
Retailer 6
-
£2,822 GBP
$3,781 USD
View
Price last confirmed 18 days ago
B
Retailer 7
-
£2,937 GBP
$3,935 USD
View
B
Retailer 8
-
£3,526 GBP
$4,724 USD
View
B
Retailer 9
-
£3,892 GBP
$5,215 USD
View
B
Retailer 10
-
£4,379 GBP
$5,868 USD
View
Most Expensive
B
MOH London
LG476187393 · Oct 29
£7,190 GBP
View
10 more retailers have this diamond
Prices start from £1,142 GBPSave up to £6,048 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 Round
£1,142 GBP