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1.54ct K SI1 Round Lab Grown Diamond

EX • K/SI1 • IGI LG445039365

Shape and cutting style on the report: Round brilliant

Certificate IGI LG445039365

Diamond specifications and retailer prices

From £712 GBP
As of November 5, 2026
Save £2,081 GBP (75%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: £2,793 GBP at MOH London · As of November 5, 2026
View at MOH London

About this 1.54ct lab-grown round diamond

This 1.54ct lab-grown round sits in the one-and-a-half to two carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG445039365 or 445039365. Listed at 9 retailers as of November 5, 2026, with prices from £712 to £2,793, a £2,081 spread on the same certified stone. MOH London lists it at £2,793. 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

1.54
Carat
K
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32°
Pavilion angle41.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG445039365
Dimensions7.41 × 7.48 × 4.52 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
7.41 mm7.48 mm1.54 ctK / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG445039365
Side View
Table 59.5%Crown 32°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 60.7%

Caratlytics Score

How it works →
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 5
Current: £2,793 GBP|Low: £712 GBP|High: £2,837 GBP|Avg: £1,514 GBP|-0.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 5, 2026
Retailer 4£712 GBP
Retailer 5£825 GBP
Retailer 2£955 GBP
Retailer 7£1,212 GBP
Retailer 6£1,320 GBP
Retailer 3£1,779 GBP
MOH London£2,793 GBP

16 data points across 7 retailers

9 retailers£712 GBP to £2,793 GBP

A
Cheapest Retailer
-
£712 GBP
A
Retailer 2
-
£774 GBP
View
Retailer 3
-
£825 GBP
View
Price last confirmed 25 days ago
A
Retailer 4
-
£825 GBP
View
B+
Retailer 5
-
£955 GBP
View
B
Retailer 6
-
£1,320 GBP
View
B
Retailer 7
-
£1,779 GBP
View
B
Retailer 8
-
£2,322 GBP
View
Most Expensive
B
MOH London
LG445039365 · Nov 5
£2,793 GBP
View
8 more retailers have this diamond
Prices start from £712 GBPSave up to £2,081 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
1.54ct Round
£712 GBP