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Round|Lab Grown|IGI

2.54ct K SI1 Round Lab Grown Diamond

ID • K/SI1 • IGI LG476185675

Shape and cutting style on the report: Round brilliant

Certificate IGI LG476185675

Diamond specifications and retailer prices

From £1,644 GBP
As of November 5, 2026
Save £3,517 GBP (68%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £5,161 GBP at MOH London · As of November 5, 2026
View at MOH London

About this 2.54ct lab-grown round diamond

This 2.54ct lab-grown round sits in the two to three carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG476185675 or 476185675. Listed at 10 retailers as of November 5, 2026, with prices from £1,644 to £5,161, a £3,517 spread on the same certified stone. MOH London lists it at £5,161. 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

2.54
Carat
K
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG476185675
Dimensions8.74 × 8.78 × 5.39 mm
L/W Ratio1.00
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
8.74 mm8.78 mm2.54 ctK / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG476185675
Side View
Table 56.5%Crown 35.5°GirdlePavilion 40.4°Culet: NoneDepth 61.5%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 5
Current: £5,161 GBP|Low: £1,579 GBP|High: £5,245 GBP|Avg: £2,655 GBP|-0.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 5, 2026
Retailer 5£1,644 GBP
Retailer 2£1,849 GBP
Retailer 6£1,907 GBP
Retailer 8£1,907 GBP
Retailer 3£2,028 GBP
Retailer 9£2,435 GBP
Retailer 7£2,978 GBP
Retailer 4£2,990 GBP
MOH London£5,161 GBP

40 data points across 9 retailers

10 retailers£1,644 GBP to £5,161 GBP

A
Cheapest Retailer
-
£1,644 GBP
A
Retailer 2
-
£1,789 GBP
View
A
Retailer 3
-
£1,849 GBP
View
Retailer 4
-
£1,907 GBP
View
Price last confirmed 26 days ago
B+
Retailer 5
-
£1,907 GBP
View
B+
Retailer 6
-
£2,028 GBP
View
B
Retailer 7
-
£2,622 GBP
View
B
Retailer 8
-
£2,978 GBP
View
B
Retailer 9
-
£2,990 GBP
View
Most Expensive
B
MOH London
LG476185675 · Nov 5
£5,161 GBP
View
9 more retailers have this diamond
Prices start from £1,644 GBPSave up to £3,517 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
2.54ct Round
£1,644 GBP