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Round|Natural|GIA

1.00ct F SI2 Round Natural Diamond

EX • F/SI2 • GIA 6451475677

Certificate GIA 6451475677

Diamond specifications and retailer prices

From $3,804 AUD
As of November 6, 2026
Save $6,326 AUD (62%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $10,130 AUD at Diamond Quarter · As of November 6, 2026
View at Diamond Quarter

About this 1ct natural round diamond

This 1ct natural round sits in the classic one-carat band, graded F colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6451475677. Listed at 19 retailers as of November 6, 2026, with prices from $3,804 to $10,130, a $6,326 spread on the same certified stone. Diamond Quarter lists it at $10,130. 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

1.00
Carat
F
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 6451475677
Dimensions6.46 × 6.42 × 3.93 mm
L/W Ratio1.01
Top View
6.46 mm6.42 mm1.00 ctF / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6451475677
Side View
Table 57.0%Crown 33°Girdle: Slightly ThickPavilion 41°Culet: NoneDepth 61.0%

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: Nov 6
Current: $3,804 AUD|Low: $3,804 AUD|High: $8,879 AUD|Avg: $5,322 AUD|-3.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 1$3,804 AUD
Retailer 8$3,855 AUD
Retailer 2$4,574 AUD
Retailer 9$4,657 AUD
Retailer 3$4,743 AUD
Retailer 10$4,841 AUD
Retailer 4$5,373 AUD
Retailer 5$5,395 AUD
Retailer 7$5,602 AUD
Retailer 6$8,750 AUD

31 data points across 10 retailers

19 retailers$3,804 AUD to $10,130 AUD

A
Cheapest Retailer
-
$3,804 AUD
A
Retailer 2
-
$3,855 AUD
View
B+
Retailer 3
-
$4,574 AUD
View
B+
Retailer 4
-
$4,657 AUD
View
B+
Retailer 5
-
$4,743 AUD
View
B+
Retailer 6
-
$4,841 AUD
View
Final sale: no returns
Retailer 7
-
$4,911 AUD
View
Price last confirmed 109 days ago
Retailer 8
-
$5,247 AUD
View
Price last confirmed 8 days ago
B
Retailer 9
-
$5,247 AUD
View
B+
Retailer 10
-
$5,373 AUD
View
B+
Retailer 11
-
$5,395 AUD
View
B+
Retailer 12
-
$5,448 AUD
View
B+
Retailer 13
-
$5,458 AUD
View
B+
Retailer 14
-
$5,602 AUD
View
B
Retailer 15
-
$6,053 AUD
View
B
Retailer 16
-
$6,137 AUD
View
B
Retailer 17
-
$8,750 AUD
View
B
Retailer 18
-
$9,140 AUD
View
Most Expensive
B
Diamond Quarter
1.0SI2F64778F74N · Nov 6
$10,130 AUD
£5,481 GBP
View
18 more retailers have this diamond
Prices start from $3,804 AUDSave up to $6,326 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
1.00ct Round
$3,804 AUD