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Round|Natural|GIA

1.05ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 7496000425

Certificate GIA 7496000425

Diamond specifications and retailer prices

From $2,794 AUD
As of November 6, 2026
Save $5,068 AUD (64%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $7,862 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 I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 7496000425. Listed at 18 retailers as of November 5, 2026, with prices from $2,794 to $7,862, a $5,068 spread on the same certified stone. NZ Jewellers lists it at $7,862. 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
I
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceNone
Crown angle32.5°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 7496000425
Dimensions6.61 × 6.57 × 3.94 mm
L/W Ratio1.01
Star length45%
Lower girdle75%
Culet sizeNone
Key to symbols
Crystal, Twinning Wisp, Feather, Indented Natural, Needle
Top View
6.61 mm6.57 mm1.05 ctI / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceNone
CertificateGIA 7496000425
Side View
Table 59.0%Crown 32.5°Girdle: THN-STKPavilion 40.8°Culet: NoneDepth 59.7%

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: $3,598 AUD|Low: $2,794 AUD|High: $6,669 AUD|Avg: $3,994 AUD|-1.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 7$2,794 AUD
Retailer 10$2,864 AUD
Retailer 8$3,078 AUD
Retailer 2$3,406 AUD
Retailer 1$3,598 AUD
Retailer 3$3,956 AUD
Retailer 9$4,213 AUD
Retailer 6$4,221 AUD
Retailer 4$4,590 AUD
Retailer 5$6,570 AUD

38 data points across 10 retailers

18 retailers$2,794 AUD to $7,862 AUD

A
Cheapest Retailer
-
$2,794 AUD
A
Retailer 2
-
$2,864 AUD
View
Final sale: no returns
A
Retailer 3
-
$3,078 AUD
View
A
Retailer 4
-
$3,406 AUD
View
A
Retailer 5
-
$3,407 AUD
View
Retailer 6
-
$3,407 AUD
View
Price last confirmed 8 days ago
B+
Retailer 7
-
$3,564 AUD
View
A
Retailer 8
-
$3,598 AUD
View
B+
Retailer 9
-
$3,930 AUD
View
B+
Retailer 10
-
$3,930 AUD
View
B+
Retailer 11
-
$3,931 AUD
View
B+
Retailer 12
-
$3,956 AUD
View
B+
Retailer 13
-
$4,061 AUD
View
Retailer 14
-
$4,213 AUD
View
Price last confirmed 30 days ago
B+
Retailer 15
-
$4,221 AUD
View
B+
Retailer 16
-
$4,590 AUD
View
B
Retailer 17
-
$6,570 AUD
View
Most Expensive
B
NZ Jewellers
aacb2e51-d5c4-41d4-a85f-c2cbc8c4d6c6 · Nov 5
$7,862 AUD
$5,402 USD
View
17 more retailers have this diamond
Prices start from $2,794 AUDSave up to $5,068 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
$2,794 AUD