CaratHunter
Plans
Round|Natural|GIA

1.00ct H SI2 Round Natural Diamond

EX • H/SI2 • GIA 5553042899

Certificate GIA 5553042899

Diamond specifications and retailer prices

From $2,373 AUD
As of November 5, 2026
Save $3,260 AUD (58%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $6,911 AUD at NZ Jewellers · As of October 20, 2026
View at NZ Jewellers

About this 1ct natural round diamond

This 1ct natural round sits in the classic one-carat band, graded H colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 5553042899. Listed at 19 retailers as of November 2, 2026, with a 137% 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

1.00
Carat
H
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle41.4°
OriginNatural
Grading LabGIA
CertificateGIA 5553042899
Dimensions6.33 × 6.36 × 4.00 mm
L/W Ratio1.00
Top View
6.33 mm6.36 mm1.00 ctH / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5553042899
Side View
Table 59.0%Crown 35°Girdle: MED-STKPavilion 41.4°Culet: NoneDepth 63.0%

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: Nov 5
Current: $6,911 AUD|Low: $2,373 AUD|High: $6,911 AUD|Avg: $3,536 AUD|+0.8%
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
Retailer 16
Retailer 17
Retailer 18
November 6, 2026
Retailer 15$2,373 AUD
Retailer 17$2,450 AUD
Retailer 5$2,631 AUD
Retailer 3$2,688 AUD
Retailer 18$2,726 AUD
Retailer 14$2,986 AUD
Retailer 2$2,991 AUD
Retailer 10$2,994 AUD
Retailer 8$3,133 AUD
Retailer 4$3,386 AUD
Retailer 6$3,386 AUD
Retailer 9$3,456 AUD
Retailer 11$3,473 AUD
Retailer 7$3,500 AUD
Retailer 16$3,924 AUD
Retailer 12$4,093 AUD
Retailer 13$5,633 AUD
NZ Jewellers$6,911 AUD

26 data points across 18 retailers

19 retailers$2,373 AUD to $5,633 AUD

A
Cheapest Retailer
-
$2,373 AUD
A
Retailer 2
-
$2,450 AUD
View
A
Retailer 3
-
$2,631 AUD
View
A
Retailer 4
-
$2,688 AUD
View
Final sale: no returns
A
Retailer 5
-
$2,726 AUD
View
Retailer 6
-
$2,971 AUD
View
Price last confirmed 21 days ago
A
Retailer 7
-
$2,986 AUD
View
A
Retailer 8
-
$2,991 AUD
View
Retailer 9
-
$2,994 AUD
View
Price last confirmed 15 days ago
Retailer 10
-
$3,133 AUD
View
Price last confirmed 15 days ago
A
Retailer 11
-
$3,386 AUD
View
A
Retailer 12
-
$3,386 AUD
View
Retailer 13
-
$3,456 AUD
View
Price last confirmed 16 days ago
B+
Retailer 14
-
$3,473 AUD
View
B+
Retailer 15
-
$3,500 AUD
View
B+
Retailer 16
-
$3,924 AUD
View
B+
Retailer 17
-
$4,093 AUD
View
B
Retailer 18
-
$5,633 AUD
View
Most Expensive
NZ Jewellers
83c0332c-7649-483a-b899-540f4f630fff · Oct 20
$6,911 AUD
$4,838 USD
View
Price last confirmed 17 days ago
18 more retailers have this diamond
Prices start from $2,373 AUDSave up to $3,260 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
1.00ct Round
$2,373 AUD