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Round|Natural|GIA

1.05ct F SI2 Round Natural Diamond

EX • F/SI2 • GIA 6555581750

Certificate GIA 6555581750

Diamond specifications and retailer prices

From $3,275 AUD
As of November 4, 2026
Save $4,308 AUD (57%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $7,583 AUD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.05ct natural round diamond

This 1.05ct 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 6555581750. Listed at 12 retailers as of November 4, 2026, with prices from $3,275 to $7,583, a $4,308 spread on the same certified stone. NZ Jewellers lists it at $7,583. 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

1.05
Carat
F
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 6555581750
Dimensions6.52 × 6.50 × 4.06 mm
L/W Ratio1.00
Star length50%
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Cloud, Feather, Needle
Top View
6.52 mm6.50 mm1.05 ctF / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6555581750
Side View
Table 56.0%Crown 34.5°Girdle: MED-STKPavilion 41°Culet: NoneDepth 61.8%

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 4
Current: $7,583 AUD|Low: $3,275 AUD|High: $7,891 AUD|Avg: $4,409 AUD|-3.9%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 6, 2026
Retailer 11$3,275 AUD
Retailer 2$3,279 AUD
Retailer 3$3,526 AUD
Retailer 12$3,627 AUD
Retailer 4$3,663 AUD
Retailer 9$3,794 AUD
Retailer 6$3,815 AUD
Retailer 5$3,906 AUD
Retailer 10$4,184 AUD
Retailer 7$4,499 AUD
Retailer 8$6,335 AUD
NZ Jewellers$7,583 AUD

29 data points across 12 retailers

12 retailers$3,275 AUD to $7,583 AUD

A
Cheapest Retailer
-
$3,275 AUD
A
Retailer 2
-
$3,279 AUD
View
A
Retailer 3
-
$3,526 AUD
View
A
Retailer 4
-
$3,627 AUD
View
Retailer 5
-
$3,663 AUD
View
Price last confirmed 9 days ago
A
Retailer 6
-
$3,794 AUD
View
A
Retailer 7
-
$3,815 AUD
View
A
Retailer 8
-
$3,906 AUD
View
A
Retailer 9
-
$4,184 AUD
View
B+
Retailer 10
-
$4,499 AUD
View
B+
Retailer 11
-
$6,335 AUD
View
Most Expensive
B
NZ Jewellers
d751fad7-a16e-4d9a-8ba7-00bbc9bdd159 · Nov 5
$7,583 AUD
$5,210 USD
View
11 more retailers have this diamond
Prices start from $3,275 AUDSave up to $4,308 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
1.05ct Round
$3,275 AUD