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Round|Natural|GIA

1.05ct H SI1 Round Natural Diamond

EX • H/SI1 • GIA 1519052866

Certificate GIA 1519052866

Diamond specifications and retailer prices

From $4,244 AUD
As of November 6, 2026
Save $4,566 AUD (52%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $8,810 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 1519052866. Listed at 18 retailers as of November 5, 2026, with prices from $4,244 to $8,810, a $4,566 spread on the same certified stone. Diamond Quarter lists it at $8,810. 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
FluorescenceNone
Crown angle35.5°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 1519052866
Dimensions6.52 × 6.49 × 4.04 mm
L/W Ratio1.00
Star length45%
Lower girdle75%
Girdle conditionFaceted
Culet sizeNone
Cert comments
Additional clouds are not shown. Pinpoints are not shown.
Key to symbols
Cloud, Feather, Crystal, Needle
Top View
6.52 mm6.49 mm1.05 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1519052866
Side View
Table 58.0%Crown 35.5°Girdle: MED-STKPavilion 41°Culet: NoneDepth 62.1%

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 6
Current: $4,575 AUD|Low: $4,314 AUD|High: $8,092 AUD|Avg: $5,351 AUD|-1.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 7$4,314 AUD
Retailer 8$4,413 AUD
Retailer 1$4,575 AUD
Retailer 2$4,917 AUD
Retailer 9$5,107 AUD
Retailer 4$5,551 AUD
Retailer 3$5,554 AUD
Retailer 5$5,835 AUD
Retailer 6$7,974 AUD

34 data points across 9 retailers

18 retailers$4,244 AUD to $8,810 AUD

B+
Cheapest Retailer
-
$4,244 AUD
B+
Retailer 2
-
$4,314 AUD
View
B+
Retailer 3
-
$4,413 AUD
View
Final sale: no returns
B+
Retailer 4
-
$4,575 AUD
View
B+
Retailer 5
-
$4,621 AUD
View
Retailer 6
-
$4,781 AUD
View
Price last confirmed 8 days ago
B+
Retailer 7
-
$4,781 AUD
View
B+
Retailer 8
-
$4,917 AUD
View
B+
Retailer 9
-
$4,965 AUD
View
Retailer 10
-
$5,107 AUD
View
Price last confirmed 30 days ago
B+
Retailer 11
-
$5,283 AUD
View
B
Retailer 12
-
$5,517 AUD
View
B+
Retailer 13
-
$5,551 AUD
View
B+
Retailer 14
-
$5,554 AUD
View
B
Retailer 15
-
$5,835 AUD
View
B
Retailer 16
-
$7,974 AUD
View
B
Retailer 17
-
$8,330 AUD
View
Most Expensive
B
Diamond Quarter
1.05SI1H1566220DN · Nov 5
$8,810 AUD
£4,856 GBP
View
17 more retailers have this diamond
Prices start from $4,244 AUDSave up to $4,566 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
$4,244 AUD