CaratHunter
Plans
Round|Natural|GIA

1.03ct I SI2 Round Natural Diamond

EX • I/SI2 • GIA 1553626378

Certificate GIA 1553626378

Diamond specifications and retailer prices

From $2,810 AUD
As of November 5, 2026
Save $4,998 AUD (64%) vs most expensive(unlock to see where)
27 retailers carry this diamond
Most expensive: $7,808 AUD at NZ Jewellers · As of October 20, 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 SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1553626378. Listed at 27 retailers as of November 5, 2026, with a 178% 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
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 1553626378
Dimensions6.43 × 6.47 × 3.99 mm
L/W Ratio1.01
Girdle conditionSlightly Thick
Key to symbols
Crystal, Feather, Cloud, Needle
Top View
6.43 mm6.47 mm1.03 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1553626378
Side View
Table 56.0%Crown 35°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 62.2%

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: $3,524 AUD|Low: $2,810 AUD|High: $6,621 AUD|Avg: $4,096 AUD|-1.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 3$2,810 AUD
Retailer 9$3,057 AUD
Retailer 8$3,123 AUD
Retailer 7$3,384 AUD
Retailer 1$3,524 AUD
Retailer 2$3,928 AUD
Retailer 4$4,408 AUD
Retailer 5$4,633 AUD
Retailer 6$6,525 AUD

37 data points across 9 retailers

27 retailers$2,810 AUD to $7,808 AUD

A
Cheapest Retailer
-
$2,810 AUD
A
Retailer 2
-
$3,057 AUD
View
A
Retailer 3
-
$3,123 AUD
View
Final sale: no returns
Retailer 4
-
$3,384 AUD
View
Price last confirmed 21 days ago
Retailer 5
-
$3,384 AUD
View
Price last confirmed 8 days ago
Retailer 6
-
$3,384 AUD
View
Price last confirmed 50 days ago
Retailer 7
-
$3,384 AUD
View
Price last confirmed 29 days ago
Retailer 8
-
$3,384 AUD
View
Price last confirmed 29 days ago
Retailer 9
-
$3,384 AUD
View
Price last confirmed 15 days ago
B+
Retailer 10
-
$3,451 AUD
View
A
Retailer 11
-
$3,524 AUD
View
Retailer 12
-
$3,540 AUD
View
Price last confirmed 38 days ago
B+
Retailer 13
-
$3,743 AUD
View
B+
Retailer 14
-
$3,743 AUD
View
B+
Retailer 15
-
$3,871 AUD
View
Retailer 16
-
$3,904 AUD
View
Price last confirmed 28 days ago
Retailer 17
-
$3,904 AUD
View
Price last confirmed 45 days ago
Retailer 18
-
$3,904 AUD
View
Price last confirmed 16 days ago
B+
Retailer 19
-
$3,904 AUD
View
B+
Retailer 20
-
$3,928 AUD
View
B+
Retailer 21
-
$4,408 AUD
View
B+
Retailer 22
-
$4,633 AUD
View
B
Retailer 23
-
$6,525 AUD
View
B
Retailer 24
-
$7,808 AUD
View
Retailer 25
-
$7,808 AUD
View
Price last confirmed 39 days ago
Retailer 26
-
$7,808 AUD
View
Price last confirmed 48 days ago
Most Expensive
NZ Jewellers
21707d7a-ed75-4fa4-a5f5-decf48e476b2 · Oct 20
$7,808 AUD
$5,466 USD
View
Price last confirmed 16 days ago
26 more retailers have this diamond
Prices start from $2,810 AUDSave up to $4,998 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
$2,810 AUD