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Round|Natural|GIA

0.45ct I SI1 Round Natural Diamond

VG • I/SI1 • GIA 2436438019

Certificate GIA 2436438019

Diamond specifications and retailer prices

From $338 AUD
As of November 6, 2026
Save $1,444 AUD (81%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $2,036 AUD at NZ Jewellers · As of September 28, 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 very-good cut grade and certified by GIA 2436438019. Listed at 21 retailers as of November 4, 2026, with a 428% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

0.45
Carat
I
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceMedium
Crown angle35°
Pavilion angle42°
OriginNatural
Grading LabGIA
CertificateGIA 2436438019
Dimensions4.83 × 4.79 × 3.10 mm
L/W Ratio1.01
Star length50%
Lower girdle80%
Top View
4.83 mm4.79 mm0.45 ctI / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceMedium
CertificateGIA 2436438019
Side View
Table 59.0%Crown 35°Girdle: STK-THKPavilion 42°Culet: NoneDepth 64.5%

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: $1,781 AUD|Low: $338 AUD|High: $1,891 AUD|Avg: $732 AUD|-5.8%
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
November 6, 2026
Retailer 9$338 AUD
Retailer 16$365 AUD
Retailer 4$409 AUD
Retailer 15$464 AUD
Retailer 10$505 AUD
Retailer 8$525 AUD
Retailer 7$547 AUD
Retailer 11$588 AUD
Retailer 6$626 AUD
Retailer 13$627 AUD
Retailer 2$723 AUD
Retailer 3$723 AUD
Retailer 14$786 AUD
Retailer 12$792 AUD
Retailer 5$1,071 AUD
NZ Jewellers$1,781 AUD

18 data points across 16 retailers

21 retailers$338 AUD to $1,781 AUD

A
Cheapest Retailer
-
$338 AUD
A
Retailer 2
-
$365 AUD
View
A
Retailer 3
-
$409 AUD
View
A
Retailer 4
-
$464 AUD
View
Retailer 5
-
$502 AUD
View
Price last confirmed 51 days ago
A
Retailer 6
-
$505 AUD
View
Retailer 7
-
$525 AUD
View
Price last confirmed 8 days ago
A
Retailer 8
-
$547 AUD
View
A
Retailer 9
-
$588 AUD
View
Retailer 10
-
$592 AUD
View
Price last confirmed 38 days ago
A
Retailer 11
-
$626 AUD
View
A
Retailer 12
-
$627 AUD
View
Retailer 13
-
$715 AUD
View
Price last confirmed 38 days ago
B+
Retailer 14
-
$723 AUD
View
A
Retailer 15
-
$723 AUD
View
B+
Retailer 16
-
$786 AUD
View
B+
Retailer 17
-
$792 AUD
View
Retailer 18
-
$844 AUD
View
Price last confirmed 38 days ago
B
Retailer 19
-
$1,071 AUD
View
B
Retailer 20
-
$1,781 AUD
View
Most Expensive
NZ Jewellers
f61d444c-4043-4085-a536-087d87be0fe4 · Sep 28
$2,036 AUD
$1,399 USD
View
Price last confirmed 39 days ago
20 more retailers have this diamond
Prices start from $338 AUDSave up to $1,444 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
$338 AUD