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Round|Natural|GIA

1.05ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 7423988908

Certificate GIA 7423988908

Diamond specifications and retailer prices

From $2,888 AUD
As of November 6, 2026
Save $5,227 AUD (64%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $8,115 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 7423988908. Listed at 18 retailers as of November 5, 2026, with prices from $2,888 to $8,115, a $5,227 spread on the same certified stone. NZ Jewellers lists it at $8,115. 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
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle35°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 7423988908
Dimensions6.54 × 6.51 × 4.06 mm
L/W Ratio1.00
Top View
6.54 mm6.51 mm1.05 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 7423988908
Side View
Table 56.0%Crown 35°Girdle: MediumPavilion 41°Culet: NoneDepth 62.2%

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: $8,115 AUD|Low: $2,694 AUD|High: $8,115 AUD|Avg: $4,668 AUD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 5, 2026
Retailer 6$2,888 AUD
Retailer 7$3,177 AUD
Retailer 8$3,246 AUD
Retailer 10$3,678 AUD
Retailer 3$4,084 AUD
Retailer 9$4,348 AUD
Retailer 5$4,367 AUD
Retailer 2$4,737 AUD
Retailer 4$6,783 AUD
NZ Jewellers$8,115 AUD

43 data points across 10 retailers

18 retailers$2,888 AUD to $8,115 AUD

A
Cheapest Retailer
-
$2,888 AUD
A
Retailer 2
-
$3,177 AUD
View
A
Retailer 3
-
$3,178 AUD
View
A
Retailer 4
-
$3,246 AUD
View
Final sale: no returns
A
Retailer 5
-
$3,393 AUD
View
B+
Retailer 6
-
$3,517 AUD
View
Retailer 7
-
$3,517 AUD
View
Price last confirmed 8 days ago
B+
Retailer 8
-
$3,678 AUD
View
B+
Retailer 9
-
$4,043 AUD
View
B+
Retailer 10
-
$4,043 AUD
View
B+
Retailer 11
-
$4,058 AUD
View
B+
Retailer 12
-
$4,084 AUD
View
B+
Retailer 13
-
$4,171 AUD
View
Retailer 14
-
$4,348 AUD
View
Price last confirmed 30 days ago
B+
Retailer 15
-
$4,367 AUD
View
B+
Retailer 16
-
$4,737 AUD
View
B
Retailer 17
-
$6,783 AUD
View
Most Expensive
B
NZ Jewellers
96e44543-1306-4d89-b4a9-f2289f918478 · Nov 5
$8,115 AUD
$5,681 USD
View
17 more retailers have this diamond
Prices start from $2,888 AUDSave up to $5,227 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
$2,888 AUD