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Round|Natural|GIA

1.05ct H SI1 Round Natural Diamond

EX • H/SI1 • GIA 1453563482

Certificate GIA 1453563482

Diamond specifications and retailer prices

From $4,800 AUD
As of November 4, 2026
Save $5,477 AUD (53%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $14,110 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 H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1453563482. Listed at 15 retailers as of November 4, 2026, with a 114% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
H
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle34.5°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 1453563482
Dimensions6.53 × 6.51 × 4.01 mm
L/W Ratio1.00
Star length55%
Lower girdle80%
Top View
6.53 mm6.51 mm1.05 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 1453563482
Side View
Table 58.0%Crown 34.5°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 61.5%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: $5,903 AUD|Low: $4,111 AUD|High: $9,982 AUD|Avg: $6,297 AUD|+0.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 4$4,800 AUD
Retailer 7$4,933 AUD
Retailer 6$5,021 AUD
Retailer 9$5,550 AUD
Retailer 1$5,903 AUD
Retailer 8$6,324 AUD
Retailer 3$6,623 AUD
Retailer 2$7,200 AUD
Retailer 5$9,865 AUD

45 data points across 9 retailers

15 retailers$4,800 AUD to $10,277 AUD

B+
Cheapest Retailer
-
$4,800 AUD
B+
Retailer 2
-
$4,933 AUD
View
Final sale: no returns
B+
Retailer 3
-
$5,021 AUD
View
Retailer 4
-
$5,344 AUD
View
Price last confirmed 8 days ago
B+
Retailer 5
-
$5,344 AUD
View
B
Retailer 6
-
$5,550 AUD
View
B
Retailer 7
-
$5,903 AUD
View
B
Retailer 8
-
$6,165 AUD
View
Retailer 9
-
$6,324 AUD
View
Price last confirmed 33 days ago
B
Retailer 10
-
$6,623 AUD
View
Retailer 11
-
$6,674 AUD
View
Price last confirmed 14 days ago
B
Retailer 12
-
$7,200 AUD
View
B
Retailer 13
-
$9,865 AUD
View
B
Retailer 14
-
$10,277 AUD
View
Most Expensive
Diamond Quarter
1.05SI1H14828EC5N · Nov 5
$14,110 AUD
£7,778 GBP
View
Price under review
14 more retailers have this diamond
Prices start from $4,800 AUDSave up to $5,477 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.

B+
1.05ct Round
$4,800 AUD