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Round|Natural|GIA

1.05ct F SI2 Round Natural Diamond

EX • F/SI2 • GIA 2235458854

Certificate GIA 2235458854

Diamond specifications and retailer prices

From $4,273 AUD
As of November 6, 2026
Save $4,605 AUD (52%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $8,878 AUD at Diamond Quarter · As of November 5, 2026
View at Diamond Quarter

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 2235458854. Listed at 10 retailers as of November 5, 2026, with prices from $4,273 to $8,878, a $4,605 spread on the same certified stone. Diamond Quarter lists it at $8,878. 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
FluorescenceMedium
Crown angle36°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 2235458854
Dimensions6.55 × 6.52 × 4.04 mm
L/W Ratio1.00
Star length50%
Lower girdle80%
Culet sizeNone
Top View
6.55 mm6.52 mm1.05 ctF / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 2235458854
Side View
Table 59.0%Crown 36°Girdle: THN-MEDPavilion 41.2°Culet: NoneDepth 61.7%

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: $6,047 AUD|Low: $4,046 AUD|High: $6,909 AUD|Avg: $5,336 AUD|+2.2%
Retailer 1
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 5, 2026
Retailer 11$4,046 AUD
Retailer 8$4,273 AUD
Retailer 7$4,323 AUD
Retailer 13$4,343 AUD
Retailer 6$4,670 AUD
Retailer 9$5,106 AUD
Retailer 10$5,429 AUD
Retailer 3$5,662 AUD
Retailer 12$5,662 AUD
Retailer 14$5,760 AUD
Retailer 2$5,851 AUD
Retailer 1$6,047 AUD
Retailer 4$6,573 AUD
Retailer 5$6,909 AUD

21 data points across 14 retailers

10 retailers$4,273 AUD to $8,878 AUD

B+
Cheapest Retailer
-
$4,273 AUD
A
Retailer 2
-
$4,323 AUD
View
B+
Retailer 3
-
$4,343 AUD
View
B+
Retailer 4
-
$5,106 AUD
View
B
Retailer 5
-
$5,429 AUD
View
B+
Retailer 6
-
$5,662 AUD
View
B+
Retailer 7
-
$5,662 AUD
View
B+
Retailer 8
-
$5,851 AUD
View
B+
Retailer 9
-
$6,047 AUD
View
Most Expensive
B
Diamond Quarter
1.05SI2F225422B5N · Nov 5
$8,878 AUD
£4,803 GBP
View
9 more retailers have this diamond
Prices start from $4,273 AUDSave up to $4,605 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
$4,273 AUD