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Round|Natural|GIA

1.03ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 5546840289

Certificate GIA 5546840289

Diamond specifications and retailer prices

From $2,936 AUD
As of October 31, 2026
Save $3,844 AUD (57%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $8,091 AUD at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 1.03ct natural round diamond

This 1.03ct natural round sits in the classic one-carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 5546840289. Listed at 14 retailers as of October 31, 2026, with a 131% 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

1.03
Carat
I
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 5546840289
Dimensions6.43 × 6.46 × 4.02 mm
L/W Ratio1.00
Top View
6.43 mm6.46 mm1.03 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5546840289
Side View
Table 57.0%Crown 35.5°Girdle: MediumPavilion 41.2°Culet: NoneDepth 62.4%

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 31
Current: $8,091 AUD|Low: $2,928 AUD|High: $8,091 AUD|Avg: $4,273 AUD
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
November 5, 2026
Retailer 10$2,936 AUD
Retailer 5$3,094 AUD
Retailer 6$3,148 AUD
Retailer 3$3,467 AUD
Retailer 13$3,579 AUD
Retailer 2$3,700 AUD
Retailer 15$3,813 AUD
Retailer 14$4,074 AUD
Retailer 9$4,112 AUD
Retailer 4$4,218 AUD
Retailer 12$4,580 AUD
Retailer 7$4,587 AUD
Retailer 11$4,756 AUD
Retailer 8$6,779 AUD
NZ Jewellers$8,091 AUD

20 data points across 15 retailers

14 retailers$2,936 AUD to $6,779 AUD

A
Cheapest Retailer
-
$2,936 AUD
Retailer 2
-
$3,148 AUD
View
Price last confirmed 38 days ago
A
Retailer 3
-
$3,294 AUD
View
A
Retailer 4
-
$3,467 AUD
View
B+
Retailer 5
-
$3,579 AUD
View
A
Retailer 6
-
$3,700 AUD
View
B+
Retailer 7
-
$3,813 AUD
View
Price last confirmed 4 days ago
B+
Retailer 8
-
$4,074 AUD
View
B+
Retailer 9
-
$4,112 AUD
View
B+
Retailer 10
-
$4,218 AUD
View
B+
Retailer 11
-
$4,580 AUD
View
B+
Retailer 12
-
$4,756 AUD
View
B
Retailer 13
-
$6,779 AUD
View
Most Expensive
NZ Jewellers
4bef8c72-6d89-49f1-9e56-ab189bcc09ef · Oct 30
$8,091 AUD
$5,559 USD
View
Price last confirmed 7 days ago
13 more retailers have this diamond
Prices start from $2,936 AUDSave up to $3,844 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
1.03ct Round
$2,936 AUD