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Round|Natural|GIA

0.55ct H SI1 Round Natural Diamond

EX • H/SI1 • GIA 6521444924

Certificate GIA 6521444924

Diamond specifications and retailer prices

From $759 AUD
$532 USD
As of November 2, 2026
Save $1,819 AUD (71%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $2,578 AUD at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 0.55ct natural round diamond

This 0.55ct 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 6521444924. Listed at 17 retailers as of October 30, 2026, with prices from $759 to $2,578, a $1,819 spread on the same certified stone. NZ Jewellers lists it at $2,578. 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

0.55
Carat
H
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle34.5°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 6521444924
Dimensions5.34 × 5.33 × 3.19 mm
L/W Ratio1.00
Top View
5.34 mm5.33 mm0.55 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6521444924
Side View
Table 62.0%Crown 34.5°Girdle: MED-THNPavilion 41°Culet: NoneDepth 59.7%

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 2
Current: $1,899 AUD|Low: $759 AUD|High: $1,921 AUD|Avg: $1,118 AUD|-1.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 2, 2026
Retailer 10$759 AUD
Retailer 9$836 AUD
Retailer 11$842 AUD
Retailer 3$885 AUD
Retailer 5$995 AUD
Retailer 4$1,064 AUD
Retailer 8$1,099 AUD
Retailer 6$1,214 AUD
Retailer 2$1,236 AUD
Retailer 7$1,269 AUD
Retailer 1$1,899 AUD

36 data points across 11 retailers

17 retailers$759 AUD to $2,578 AUD

A
Cheapest Retailer
-
$759 AUD
$532 USD
Final sale: no returns
Retailer 2
-
$822 AUD
$576 USD
View
Price last confirmed 48 days ago
Retailer 3
-
$836 AUD
$586 USD
View
Price last confirmed 12 days ago
A
Retailer 4
-
$842 AUD
$590 USD
View
A
Retailer 5
-
$885 AUD
$620 USD
View
A
Retailer 6
-
$885 AUD
$620 USD
View
A
Retailer 7
-
$949 AUD
$665 USD
View
A
Retailer 8
-
$995 AUD
£549 GBP
View
A
Retailer 9
-
$1,010 AUD
$708 USD
View
B+
Retailer 10
-
$1,016 AUD
$712 USD
View
A
Retailer 11
-
$1,064 AUD
£587 GBP
View
B+
Retailer 12
-
$1,099 AUD
$770 USD
View
B+
Retailer 13
-
$1,214 AUD
€810 EUR
View
Retailer 14
-
$1,236 AUD
View
Price last confirmed 29 days ago
B+
Retailer 15
-
$1,269 AUD
ZAR 14,365 ZAR
View
B
Retailer 16
-
$1,899 AUD
£1,048 GBP
View
Most Expensive
B
NZ Jewellers
431c5930-d306-49c4-8845-2a1437e150fb · Oct 30
$2,578 AUD
$1,807 USD
View
16 more retailers have this diamond
Prices start from $759 AUDSave up to $1,819 AUD

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
0.55ct Round
$759 AUD