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Round|Natural|GIA

0.45ct D SI1 Round Natural Diamond

EX • D/SI1 • GIA 2537513770

Certificate GIA 2537513770

Diamond specifications and retailer prices

From $599 AUD
As of November 6, 2026
Save $1,307 AUD (69%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $2,590 AUD at NZ Jewellers · As of September 15, 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 SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2537513770. Listed at 20 retailers as of November 2, 2026, with a 218% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
D
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
Crown angle35°
Pavilion angle41.4°
OriginNatural
Grading LabGIA
CertificateGIA 2537513770
Dimensions4.90 × 4.86 × 3.08 mm
L/W Ratio1.01
Top View
4.90 mm4.86 mm0.45 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 2537513770
Side View
Table 57.0%Crown 35°Girdle: MED-STKPavilion 41.4°Culet: NoneDepth 63.0%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $599 AUD|Low: $599 AUD|High: $1,930 AUD|Avg: $1,163 AUD|-3.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 6, 2026
Retailer 1$599 AUD
Retailer 2$991 AUD
Retailer 3$1,024 AUD
Retailer 7$1,100 AUD
Retailer 5$1,107 AUD
Retailer 8$1,241 AUD
Retailer 4$1,280 AUD
Retailer 6$1,906 AUD

39 data points across 8 retailers

20 retailers$599 AUD to $1,906 AUD

A
Cheapest Retailer
-
$599 AUD
A
Retailer 2
-
$694 AUD
View
A
Retailer 3
-
$806 AUD
View
Retailer 4
-
$826 AUD
View
Price last confirmed 53 days ago
Retailer 5
-
$826 AUD
View
Price last confirmed 9 days ago
A
Retailer 6
-
$859 AUD
View
Retailer 7
-
$890 AUD
View
Price last confirmed 8 days ago
Retailer 8
-
$890 AUD
View
Price last confirmed 9 days ago
Retailer 9
-
$953 AUD
View
Price last confirmed 10 days ago
Retailer 10
-
$953 AUD
View
Price last confirmed 53 days ago
B+
Retailer 11
-
$986 AUD
View
B+
Retailer 12
-
$991 AUD
View
B+
Retailer 13
-
$1,024 AUD
View
B+
Retailer 14
-
$1,100 AUD
View
B+
Retailer 15
-
$1,107 AUD
View
Retailer 16
-
$1,241 AUD
View
Price last confirmed 33 days ago
B+
Retailer 17
-
$1,280 AUD
View
B
Retailer 18
-
$1,906 AUD
View
Retailer 19
-
$2,590 AUD
View
Price last confirmed 7 days ago
Most Expensive
NZ Jewellers
34920845-7da7-4ed9-9835-90e1d26f4020 · Sep 15
$2,590 AUD
$1,813 USD
View
Price last confirmed 52 days ago
19 more retailers have this diamond
Prices start from $599 AUDSave up to $1,307 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
$599 AUD