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Round|Natural|GIA

1.45ct E SI2 Round Natural Diamond

EX • E/SI2 • GIA 6545380193

Certificate GIA 6545380193

Diamond specifications and retailer prices

From $4,967 AUD
As of November 5, 2026
Save $6,973 AUD (58%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $11,939 AUD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.45ct natural round diamond

This 1.45ct natural round sits in the one-and-a-quarter to one-and-a-half carat band, graded E colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6545380193. Listed at 16 retailers as of November 5, 2026, with prices from $4,967 to $11,939, a $6,973 spread on the same certified stone. NZ Jewellers lists it at $11,939. 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

1.45
Carat
E
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle35.5°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 6545380193
Dimensions7.22 × 7.25 × 4.50 mm
L/W Ratio1.00
Top View
7.22 mm7.25 mm1.45 ctE / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6545380193
Side View
Table 57.0%Crown 35.5°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 62.2%

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 5
Current: $11,939 AUD|Low: $4,967 AUD|High: $11,939 AUD|Avg: $7,236 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 6, 2026
Retailer 11$4,967 AUD
Retailer 9$5,283 AUD
Retailer 8$5,824 AUD
Retailer 5$5,977 AUD
Retailer 6$6,274 AUD
Retailer 12$6,704 AUD
Retailer 14$6,843 AUD
Retailer 3$6,853 AUD
Retailer 4$6,853 AUD
Retailer 2$6,854 AUD
Retailer 7$7,053 AUD
Retailer 10$7,661 AUD
Retailer 13$10,885 AUD
NZ Jewellers$11,939 AUD

28 data points across 14 retailers

16 retailers$4,967 AUD to $11,939 AUD

A
Cheapest Retailer
-
$4,967 AUD
A
Retailer 2
-
$5,283 AUD
View
Final sale: no returns
A
Retailer 3
-
$5,824 AUD
View
A
Retailer 4
-
$5,977 AUD
View
A
Retailer 5
-
$6,274 AUD
View
A
Retailer 6
-
$6,704 AUD
View
A
Retailer 7
-
$6,843 AUD
View
A
Retailer 8
-
$6,853 AUD
View
A
Retailer 9
-
$6,853 AUD
View
Retailer 10
-
$6,853 AUD
View
Price last confirmed 8 days ago
A
Retailer 11
-
$6,854 AUD
View
A
Retailer 12
-
$7,053 AUD
View
A
Retailer 13
-
$7,212 AUD
View
A
Retailer 14
-
$7,661 AUD
View
B+
Retailer 15
-
$10,885 AUD
View
Most Expensive
B
NZ Jewellers
71afce18-8478-44f3-95ed-a6e1ce9ff6ec · Nov 5
$11,939 AUD
$8,358 USD
View
15 more retailers have this diamond
Prices start from $4,967 AUDSave up to $6,973 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
1.45ct Round
$4,967 AUD