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Round|Natural|GIA

0.45ct I SI1 Round Natural Diamond

VG • I/SI1 • GIA 6515328742

Certificate GIA 6515328742

Diamond specifications and retailer prices

From $383 AUD
As of November 6, 2026
Save $1,649 AUD (81%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $2,203 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 6515328742. Listed at 20 retailers as of November 6, 2026, with a 431% 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
SymmetryExcellent
FluorescenceNone
Crown angle37.5°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 6515328742
Dimensions4.83 × 4.79 × 3.07 mm
L/W Ratio1.01
Key to symbols
Crystal, Cloud
Top View
4.83 mm4.79 mm0.45 ctI / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6515328742
Side View
Table 58.0%Crown 37.5°Girdle: STK-THKPavilion 40.6°Culet: NDepth 63.7%

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: $2,032 AUD|Low: $383 AUD|High: $2,070 AUD|Avg: $769 AUD|-1.8%
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$383 AUD
Retailer 8$466 AUD
Retailer 3$525 AUD
Retailer 10$568 AUD
Retailer 7$578 AUD
Retailer 16$595 AUD
Retailer 2$611 AUD
Retailer 13$671 AUD
Retailer 12$702 AUD
Retailer 4$706 AUD
Retailer 15$715 AUD
Retailer 14$816 AUD
Retailer 5$844 AUD
Retailer 11$879 AUD
Retailer 6$1,220 AUD
NZ Jewellers$2,032 AUD

20 data points across 16 retailers

20 retailers$383 AUD to $2,032 AUD

A
Cheapest Retailer
-
$383 AUD
A
Retailer 2
-
$466 AUD
View
A
Retailer 3
-
$525 AUD
View
A
Retailer 4
-
$568 AUD
View
Retailer 5
-
$578 AUD
View
Price last confirmed 8 days ago
A
Retailer 6
-
$595 AUD
View
A
Retailer 7
-
$611 AUD
View
Retailer 8
-
$619 AUD
View
Price last confirmed 38 days ago
Retailer 9
-
$664 AUD
View
Price last confirmed 38 days ago
A
Retailer 10
-
$671 AUD
View
A
Retailer 11
-
$702 AUD
View
A
Retailer 12
-
$706 AUD
View
A
Retailer 13
-
$715 AUD
View
B+
Retailer 14
-
$816 AUD
View
B+
Retailer 15
-
$844 AUD
View
B+
Retailer 16
-
$879 AUD
View
Retailer 17
-
$913 AUD
View
Price last confirmed 38 days ago
B
Retailer 18
-
$1,220 AUD
View
B
Retailer 19
-
$2,032 AUD
View
Most Expensive
NZ Jewellers
0a4024df-42c9-43c9-abd5-6880af6a6acc · Sep 28
$2,203 AUD
$1,514 USD
View
Price last confirmed 39 days ago
19 more retailers have this diamond
Prices start from $383 AUDSave up to $1,649 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
$383 AUD