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Round|Natural|GIA

0.54ct H SI1 Round Natural Diamond

EX • H/SI1 • GIA 1558165269

Certificate GIA 1558165269

Diamond specifications and retailer prices

From £313 GBP
₹40,002 INR
As of October 26, 2026
Save £654 GBP (68%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £1,312 GBP at NZ Jewellers · As of October 23, 2026
View at NZ Jewellers

About this 0.54ct natural round diamond

This 0.54ct natural round sits in the half to three-quarter carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1558165269. Listed at 13 retailers as of October 26, 2026, with a 209% 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

0.54
Carat
H
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle34.5°
Pavilion angle41.6°
OriginNatural
Grading LabGIA
CertificateGIA 1558165269
Dimensions5.19 × 5.23 × 3.24 mm
L/W Ratio1.01
Girdle conditionSlightly Thick
Top View
5.19 mm5.23 mm0.54 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 1558165269
Side View
Table 59.0%Crown 34.5°Girdle: MediumPavilion 41.6°Culet: NoneDepth 62.1%

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 26
Current: £1,312 GBP|Low: £312 GBP|High: £1,365 GBP|Avg: £630 GBP|-3.9%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 26, 2026
Retailer 5£313 GBP
Retailer 8£487 GBP
Retailer 3£493 GBP
Retailer 9£516 GBP
Retailer 11£519 GBP
Retailer 7£542 GBP
Retailer 2£568 GBP
Retailer 12£582 GBP
Retailer 6£644 GBP
Retailer 4£687 GBP
Retailer 10£968 GBP
NZ Jewellers£1,312 GBP

27 data points across 12 retailers

13 retailers£313 GBP to £968 GBP

A
Cheapest Retailer
-
£313 GBP
₹40,002 INR
A
Retailer 2
-
£414 GBP
A$854 AUD
View
A
Retailer 3
-
£487 GBP
View
A
Retailer 4
-
£493 GBP
$660 USD
View
A
Retailer 5
-
£516 GBP
$692 USD
View
A
Retailer 6
-
£519 GBP
$696 USD
View
A
Retailer 7
-
£542 GBP
View
B+
Retailer 8
-
£568 GBP
€725 EUR
View
B+
Retailer 9
-
£582 GBP
$780 USD
View
B+
Retailer 10
-
£644 GBP
ZAR 13,947 ZAR
View
Retailer 11
-
£687 GBP
A$1,415 AUD
View
Price last confirmed 27 days ago
B
Retailer 12
-
£968 GBP
View
Most Expensive
NZ Jewellers
4f387c94-72e9-41e9-abd6-5e41b72f89b9 · Oct 23
£1,312 GBP
$1,758 USD
View
Price last confirmed 8 days ago
12 more retailers have this diamond
Prices start from £313 GBPSave up to £654 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
0.54ct Round
£313 GBP