CaratHunter
Plans
Round|Natural|GIA

0.55ct H SI2 Round Natural Diamond

EX • H/SI2 • GIA 6421533302

Certificate GIA 6421533302

Diamond specifications and retailer prices

From $779 AUD
As of November 6, 2026
Save $1,872 AUD (71%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $3,315 AUD at NZ Jewellers · As of September 15, 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 SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6421533302. Listed at 17 retailers as of November 6, 2026, with a 240% 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

0.55
Carat
H
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle41.6°
OriginNatural
Grading LabGIA
CertificateGIA 6421533302
Dimensions5.22 × 5.18 × 3.26 mm
L/W Ratio1.01
Top View
5.22 mm5.18 mm0.55 ctH / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6421533302
Side View
Table 59.0%Crown 34.5°Girdle: MED-STKPavilion 41.6°Culet: NoneDepth 62.7%

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 6
Current: $779 AUD|Low: $672 AUD|High: $1,959 AUD|Avg: $1,227 AUD|-2.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 6, 2026
Retailer 1$779 AUD
Retailer 7$975 AUD
Retailer 5$1,041 AUD
Retailer 3$1,249 AUD
Retailer 4$1,284 AUD
Retailer 2$1,367 AUD
Retailer 6$1,936 AUD

43 data points across 7 retailers

17 retailers$779 AUD to $2,650 AUD

A
Cheapest Retailer
-
$779 AUD
A
Retailer 2
-
$943 AUD
View
A
Retailer 3
-
$975 AUD
View
Final sale: no returns
A
Retailer 4
-
$995 AUD
View
B+
Retailer 5
-
$1,041 AUD
View
Retailer 6
-
$1,058 AUD
View
Price last confirmed 53 days ago
Retailer 7
-
$1,058 AUD
View
Price last confirmed 21 days ago
Retailer 8
-
$1,097 AUD
View
Price last confirmed 22 days ago
B+
Retailer 9
-
$1,192 AUD
View
Retailer 10
-
$1,220 AUD
View
Price last confirmed 53 days ago
B+
Retailer 11
-
$1,249 AUD
View
B+
Retailer 12
-
$1,249 AUD
View
B+
Retailer 13
-
$1,284 AUD
View
B+
Retailer 14
-
$1,367 AUD
View
B
Retailer 15
-
$1,936 AUD
View
B
Retailer 16
-
$2,650 AUD
View
Most Expensive
NZ Jewellers
44670bad-dd18-4c05-89e9-2ef39dd2ad25 · Sep 15
$3,315 AUD
$2,278 USD
View
Price last confirmed 52 days ago
16 more retailers have this diamond
Prices start from $779 AUDSave up to $1,872 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
$779 AUD