CaratHunter
Plans
Radiant|Natural|GIA

0.45ct K SI1 Radiant Natural Diamond

VG • K/SI1 • GIA 6455661449

Certificate GIA 6455661449

Diamond specifications and retailer prices

From $370 AUD
As of November 6, 2026
Save $832 AUD (69%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $2,007 AUD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 0.45ct natural radiant diamond

This 0.45ct natural radiant sits in the sub-half-carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 6455661449. Listed at 18 retailers as of November 6, 2026, with a 225% 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
K
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6455661449
Dimensions4.88 × 3.97 × 2.90 mm
L/W Ratio1.23
Top View
4.88 mm3.97 mm0.45 ctK / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 6455661449
Side View
Table 67.0%CrownGirdle: VTK-VTKPavilionCulet: NoneDepth 73.1%

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: $2,007 AUD|Low: $370 AUD|High: $2,007 AUD|Avg: $786 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
November 7, 2026
Retailer 9$370 AUD
Retailer 3$524 AUD
Retailer 6$538 AUD
Retailer 11$550 AUD
Retailer 8$563 AUD
Retailer 14$584 AUD
Retailer 2$672 AUD
Retailer 4$704 AUD
Retailer 12$815 AUD
Retailer 5$837 AUD
Retailer 13$856 AUD
Retailer 10$1,054 AUD
Retailer 7$1,202 AUD
NZ Jewellers$2,007 AUD

32 data points across 14 retailers

18 retailers$370 AUD to $1,202 AUD

A
Cheapest Retailer
-
$370 AUD
B+
Retailer 2
-
$447 AUD
View
B+
Retailer 3
-
$524 AUD
View
B+
Retailer 4
-
$538 AUD
View
B+
Retailer 5
-
$550 AUD
View
B+
Retailer 6
-
$563 AUD
View
B+
Retailer 7
-
$584 AUD
View
B+
Retailer 8
-
$604 AUD
View
B+
Retailer 9
-
$672 AUD
View
B+
Retailer 10
-
$704 AUD
View
B+
Retailer 11
-
$713 AUD
View
B
Retailer 12
-
$736 AUD
View
B
Retailer 13
-
$815 AUD
View
B
Retailer 14
-
$837 AUD
View
B
Retailer 15
-
$856 AUD
View
B
Retailer 16
-
$1,054 AUD
View
B
Retailer 17
-
$1,202 AUD
View
Most Expensive
NZ Jewellers
d4a8295c-c292-4dee-a312-51ee2f3f9e07 · Nov 5
$2,007 AUD
$1,379 USD
View
Price under review
17 more retailers have this diamond
Prices start from $370 AUDSave up to $832 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 Radiant
$370 AUD