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Round|Natural|GIA

0.45ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 1533989187

Certificate GIA 1533989187

Diamond specifications and retailer prices

From $301 AUD
As of November 6, 2026
Save $1,607 AUD (84%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $1,908 AUD at NZ Jewellers · As of November 6, 2026
View at NZ Jewellers

About this 0.45ct natural round diamond

This 0.45ct natural round sits in the sub-half-carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1533989187. Listed at 21 retailers as of November 6, 2026, with prices from $301 to $1,908, a $1,607 spread on the same certified stone. NZ Jewellers lists it at $1,908. 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

0.45
Carat
I
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceMedium
Crown angle35°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 1533989187
Dimensions4.92 × 4.86 × 3.03 mm
L/W Ratio1.01
Key to symbols
Crystal, Feather
Top View
4.92 mm4.86 mm0.45 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceMedium
CertificateGIA 1533989187
Side View
Table 59.0%Crown 35°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 62.1%

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: $1,908 AUD|Low: $301 AUD|High: $1,958 AUD|Avg: $639 AUD|-1.3%
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
Retailer 19
November 6, 2026
Retailer 13$301 AUD
Retailer 19$329 AUD
Retailer 11$373 AUD
Retailer 7$416 AUD
Retailer 15$456 AUD
Retailer 10$466 AUD
Retailer 12$470 AUD
Retailer 2$486 AUD
Retailer 5$496 AUD
Retailer 16$521 AUD
Retailer 8$560 AUD
Retailer 18$582 AUD
Retailer 9$629 AUD
Retailer 3$648 AUD
Retailer 17$719 AUD
Retailer 6$742 AUD
Retailer 14$837 AUD
Retailer 4$959 AUD
NZ Jewellers$1,908 AUD

14 data points across 19 retailers

21 retailers$301 AUD to $1,908 AUD

A
Cheapest Retailer
-
$301 AUD
A
Retailer 2
-
$329 AUD
View
A
Retailer 3
-
$373 AUD
View
A
Retailer 4
-
$416 AUD
View
A
Retailer 5
-
$456 AUD
View
Retailer 6
-
$466 AUD
View
Price last confirmed 8 days ago
A
Retailer 7
-
$470 AUD
View
A
Retailer 8
-
$486 AUD
View
A
Retailer 9
-
$496 AUD
View
A
Retailer 10
-
$521 AUD
View
Retailer 11
-
$546 AUD
View
Price last confirmed 51 days ago
A
Retailer 12
-
$560 AUD
View
A
Retailer 13
-
$582 AUD
View
Retailer 14
-
$629 AUD
View
Price last confirmed 7 days ago
A
Retailer 15
-
$648 AUD
View
A
Retailer 16
-
$719 AUD
View
A
Retailer 17
-
$742 AUD
View
Retailer 18
-
$800 AUD
View
Price last confirmed 38 days ago
B+
Retailer 19
-
$837 AUD
View
B+
Retailer 20
-
$959 AUD
View
Most Expensive
C
NZ Jewellers
557ebd78-ab8e-40a9-ac6c-43c110e4162f · Nov 6
$1,908 AUD
$1,311 USD
View
20 more retailers have this diamond
Prices start from $301 AUDSave up to $1,607 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
0.45ct Round
$301 AUD