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1.54ct I SI1 Round Natural Diamond

EX • I/SI1 • IGI 844674050

Shape and cutting style on the report: Round brilliant

Certificate IGI 844674050

Diamond specifications and retailer prices

From £1,840 GBP
₹234,840 INR
As of November 1, 2026
Save £2,045 GBP (53%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: £3,885 GBP at MOH London · As of November 1, 2026
View at MOH London

About this 1.54ct natural round diamond

This 1.54ct natural round sits in the one-and-a-half to two carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI 844674050. Listed at 9 retailers as of November 1, 2026, with prices from £1,840 to £3,885, a £2,045 spread on the same certified stone. MOH London lists it at £3,885. 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
I
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
Crown angle36.5°
Pavilion angle41.1°
OriginNatural
Grading LabIGI
CertificateIGI 844674050
Dimensions7.27 × 7.31 × 4.62 mm
L/W Ratio1.01
Girdle conditionFaceted
Top View
7.27 mm7.31 mm1.54 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
CertificateIGI 844674050
Side View
Table 59.0%Crown 36.5°Girdle: Slightly ThickPavilion 41.1°Culet: NoneDepth 63.4%

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 1
Current: £3,885 GBP|Low: £1,840 GBP|High: £3,885 GBP|Avg: £2,442 GBP
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 2, 2026
Retailer 4£1,840 GBP
Retailer 5£2,081 GBP
Retailer 8£2,140 GBP
Retailer 9£2,323 GBP
Retailer 6£2,389 GBP
Retailer 2£2,437 GBP
Retailer 3£2,673 GBP
Retailer 7£2,708 GBP
MOH London£3,885 GBP

3 data points across 9 retailers

9 retailers£1,840 GBP to £3,885 GBP

A
Cheapest Retailer
-
£1,840 GBP
₹234,840 INR
A
Retailer 2
-
£2,081 GBP
$2,788 USD
View
A
Retailer 3
-
£2,140 GBP
$2,867 USD
View
A
Retailer 4
-
£2,323 GBP
$3,113 USD
View
A
Retailer 5
-
£2,389 GBP
View
A
Retailer 6
-
£2,437 GBP
View
B+
Retailer 7
-
£2,673 GBP
View
B+
Retailer 8
-
£2,708 GBP
€3,456 EUR
View
Most Expensive
B+
MOH London
37F49097C · Nov 1
£3,885 GBP
View
8 more retailers have this diamond
Prices start from £1,840 GBPSave up to £2,045 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
£1,840 GBP