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Round|Natural|GIA

1.25ct F SI2 Round Natural Diamond

EX • F/SI2 • GIA 6545750062

Certificate GIA 6545750062

Diamond specifications and retailer prices

From $5,362 AUD
As of November 5, 2026
7 retailers carry this diamond
Most expensive: $8,965 AUD at NZ Jewellers · As of October 27, 2026
View at NZ Jewellers

About this 1.25ct natural round diamond

This 1.25ct natural round sits in the one-and-a-quarter to one-and-a-half carat band, graded F colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6545750062. Listed at 7 retailers as of November 5, 2026. 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

1.25
Carat
F
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 6545750062
Dimensions6.81 × 6.85 × 4.27 mm
L/W Ratio1.01
Top View
6.81 mm6.85 mm1.25 ctF / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6545750062
Side View
Table 58.0%Crown 36°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 62.5%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 5
Current: $8,965 AUD|Low: $4,676 AUD|High: $8,965 AUD|Avg: $6,028 AUD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 28, 2026
Retailer 2$4,704 AUD
Retailer 5$4,780 AUD
Retailer 6$5,146 AUD
Retailer 4$5,344 AUD
Retailer 7$5,362 AUD
Retailer 9$5,775 AUD
Retailer 10$6,004 AUD
Retailer 8$6,289 AUD
Retailer 3$8,616 AUD
NZ Jewellers$8,965 AUD

18 data points across 10 retailers

7 retailers

Retailer 1
-
$4,704 AUD
Price last confirmed 10 days ago
Retailer 2
-
$4,780 AUD
View
Price last confirmed 9 days ago
Retailer 3
-
$5,146 AUD
View
Price last confirmed 18 days ago
Retailer 4
-
$5,344 AUD
View
Price last confirmed 13 days ago
A
Retailer 5
-
$5,362 AUD
View
Retailer 6
-
$8,616 AUD
View
Price last confirmed 13 days ago
Most Expensive
NZ Jewellers
aa7a0de9-9b86-4830-a61e-7ab6f33ad2a6 · Oct 27
$8,965 AUD
$6,160 USD
View
Price last confirmed 10 days ago
6 more retailers have this diamond
Prices start from $5,362 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
1.25ct Round
$5,362 AUD