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Round|Natural|GIA

0.45ct D SI2 Round Natural Diamond

VG • D/SI2 • GIA 6555253863

Certificate GIA 6555253863

Diamond specifications and retailer prices

From $512 AUD
$360 USD
As of October 29, 2026
Save $495 AUD (49%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $2,396 AUD at NZ Jewellers · As of October 22, 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 D colour (colourless) and SI2 clarity (slightly-included), with a very-good cut grade and certified by GIA 6555253863. Listed at 14 retailers as of October 26, 2026, with a 97% 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
D
Colour
SI2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishGood
SymmetryExcellent
FluorescenceMedium
Crown angle35.5°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 6555253863
Dimensions4.89 × 4.92 × 3.04 mm
L/W Ratio1.01
Top View
4.89 mm4.92 mm0.45 ctD / SI2
OriginNatural
CutVery Good
PolishGood
SymmetryExcellent
FluorescenceMedium
CertificateGIA 6555253863
Side View
Table 57.0%Crown 35.5°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 62.0%

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: Oct 29
Current: $2,396 AUD|Low: $512 AUD|High: $2,441 AUD|Avg: $850 AUD|-1.9%
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
October 30, 2026
Retailer 4$512 AUD
Retailer 5$541 AUD
Retailer 10$595 AUD
Retailer 9$690 AUD
Retailer 13$703 AUD
Retailer 2$719 AUD
Retailer 8$750 AUD
Retailer 12$820 AUD
Retailer 11$868 AUD
Retailer 3$881 AUD
Retailer 6$946 AUD
Retailer 7$1,008 AUD
NZ Jewellers$2,396 AUD

43 data points across 13 retailers

14 retailers$512 AUD to $1,008 AUD

A
Cheapest Retailer
-
$512 AUD
$360 USD
A
Retailer 2
-
$541 AUD
SGD 514 SGD
View
A
Retailer 3
-
$595 AUD
SGD 565 SGD
View
A
Retailer 4
-
$690 AUD
$485 USD
View
A
Retailer 5
-
$703 AUD
$494 USD
View
B+
Retailer 6
-
$719 AUD
£398 GBP
View
A
Retailer 7
-
$750 AUD
$527 USD
View
B+
Retailer 8
-
$819 AUD
$575 USD
View
A
Retailer 9
-
$820 AUD
$576 USD
View
A
Retailer 10
-
$868 AUD
£480 GBP
View
Retailer 11
-
$881 AUD
$619 USD
View
Price last confirmed 8 days ago
B+
Retailer 12
-
$946 AUD
€633 EUR
View
B+
Retailer 13
-
$1,008 AUD
$708 USD
View
Most Expensive
NZ Jewellers
6624452f-6137-4094-9438-5fbdf9b6c527 · Oct 22
$2,396 AUD
$1,683 USD
View
Price last confirmed 8 days ago
13 more retailers have this diamond
Prices start from $512 AUDSave up to $495 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
$512 AUD