Round|Natural|HRD

1.54ct I SI1 Round Natural Diamond

EX • I/SI1 • HRD 250000293738

Certificate HRD 250000293738

Diamond specifications and retailer prices

From £2,383 GBP
SGD 4,315 SGD
As of October 31, 2026
Save £2,826 GBP (54%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £5,427 GBP at NZ Jewellers · As of October 17, 2026
View at NZ Jewellers

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 HRD 250000293738. Listed at 13 retailers as of October 31, 2026, with a 119% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
FluorescenceNone
Crown angle33.1°
Pavilion angle41°
OriginNatural
Grading LabHRD
CertificateHRD 250000293738
Dimensions7.51 × 7.48 × 4.49 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizeNone
Top View
7.51 mm7.48 mm1.54 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateHRD 250000293738
Side View
Table 60.0%Crown 33.1°Girdle: MediumPavilion 41°Culet: NoneDepth 60.0%

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 31
Current: £3,509 GBP|Low: £2,383 GBP|High: £5,272 GBP|Avg: £3,388 GBP|+2.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 1, 2026
Retailer 5£2,383 GBP
Retailer 2£2,532 GBP
Retailer 4£3,206 GBP
Retailer 1£3,509 GBP
Retailer 3£5,209 GBP

39 data points across 5 retailers

13 retailers£2,383 GBP to £5,209 GBP

A
Cheapest Retailer
-
£2,383 GBP
SGD 4,315 SGD
A
Retailer 2
-
£2,532 GBP
₹323,154 INR
View
A
Retailer 3
-
£2,891 GBP
$3,874 USD
View
Retailer 4
-
£3,114 GBP
$4,173 USD
View
Price last confirmed 12 days ago
Retailer 5
-
£3,114 GBP
$4,173 USD
View
Price last confirmed 16 days ago
Retailer 6
-
£3,114 GBP
$4,173 USD
View
Price last confirmed 16 days ago
A
Retailer 7
-
£3,120 GBP
$4,180 USD
View
A
Retailer 8
-
£3,206 GBP
View
A
Retailer 9
-
£3,225 GBP
$4,321 USD
View
A
Retailer 10
-
£3,509 GBP
€4,478 EUR
View
Retailer 11
-
£3,594 GBP
$4,816 USD
View
Price last confirmed 13 days ago
B+
Retailer 12
-
£5,209 GBP
View
Most Expensive
NZ Jewellers
617fd6d0-dbbe-4a8f-9657-5cd04cfd56b7 · Oct 17
£5,427 GBP
$7,271 USD
View
Price last confirmed 15 days ago
12 more retailers have this diamond
Prices start from £2,383 GBPSave up to £2,826 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
£2,383 GBP