Round|Natural|GIA

0.54ct H SI1 Round Natural Diamond

EX • H/SI1 • GIA 6492718399

Certificate GIA 6492718399

Diamond specifications and retailer prices

From £706 GBP
$946 USD
As of October 31, 2026
Save £702 GBP (50%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £1,866 GBP at NZ Jewellers · As of October 30, 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 6492718399. Listed at 14 retailers as of October 29, 2026, with a 99% 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
FluorescenceNone
Crown angle33.5°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 6492718399
Dimensions5.22 × 5.20 × 3.24 mm
L/W Ratio1.00
Star length45%
Lower girdle80%
Top View
5.22 mm5.20 mm0.54 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6492718399
Side View
Table 55.0%Crown 33.5°Girdle: Slightly ThickPavilion 41°Culet: NoneDepth 62.1%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: £1,866 GBP|Low: £631 GBP|High: £2,343 GBP|Avg: £987 GBP|-20.4%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
October 31, 2026
Retailer 7£666 GBP
Retailer 13£706 GBP
Retailer 14£743 GBP
Retailer 5£748 GBP
Retailer 4£765 GBP
Retailer 3£767 GBP
Retailer 12£794 GBP
Retailer 6£816 GBP
Retailer 11£883 GBP
Retailer 9£993 GBP
Retailer 15£1,000 GBP
Retailer 8£1,074 GBP
Retailer 2£1,181 GBP
Retailer 10£1,408 GBP
NZ Jewellers£1,866 GBP

40 data points across 15 retailers

14 retailers£706 GBP to £1,408 GBP

B+
Cheapest Retailer
-
£706 GBP
$946 USD
Final sale: no returns
Retailer 2
-
£743 GBP
$995 USD
View
Price last confirmed 24 days ago
Retailer 3
-
£747 GBP
$1,001 USD
View
Price last confirmed 46 days ago
B+
Retailer 4
-
£748 GBP
$1,002 USD
View
B+
Retailer 5
-
£765 GBP
$1,025 USD
View
B+
Retailer 6
-
£767 GBP
$1,028 USD
View
B+
Retailer 7
-
£794 GBP
$1,064 USD
View
B
Retailer 8
-
£883 GBP
$1,183 USD
View
B
Retailer 9
-
£993 GBP
View
Retailer 10
-
£1,000 GBP
A$2,062 AUD
View
Price last confirmed 27 days ago
B
Retailer 11
-
£1,074 GBP
€1,371 EUR
View
B
Retailer 12
-
£1,181 GBP
ZAR 25,563 ZAR
View
B
Retailer 13
-
£1,408 GBP
View
Most Expensive
NZ Jewellers
8e32bd4c-7954-4895-bca0-b15a6babfaa8 · Oct 30
£1,866 GBP
$2,500 USD
View
Price under review
13 more retailers have this diamond
Prices start from £706 GBPSave up to £702 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.

B+
0.54ct Round
£706 GBP