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Round|Natural|GIA

1.01ct G SI1 Round Natural Diamond

EX • G/SI1 • GIA 2507300122

Certificate GIA 2507300122

Diamond specifications and retailer prices

From $3,768 AUD
As of November 6, 2026
Save $6,066 AUD (62%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: $9,834 AUD at Diamond Quarter · As of November 5, 2026
View at Diamond Quarter

About this 1.01ct natural round diamond

This 1.01ct natural round sits in the classic one-carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2507300122. Listed at 24 retailers as of November 5, 2026, with prices from $3,768 to $9,834, a $6,066 spread on the same certified stone. Diamond Quarter lists it at $9,834. 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

1.01
Carat
G
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.5°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 2507300122
Dimensions6.41 × 6.39 × 4.03 mm
L/W Ratio1.00
Star length50%
Lower girdle80%
Top View
6.41 mm6.39 mm1.01 ctG / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2507300122
Side View
Table 56.0%Crown 36.5°Girdle: THN-MEDPavilion 41°Culet: NoneDepth 63.0%

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: $3,768 AUD|Low: $3,743 AUD|High: $8,810 AUD|Avg: $5,446 AUD|-4.8%
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
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
Retailer 20
November 6, 2026
Retailer 1$3,768 AUD
Retailer 19$3,781 AUD
Retailer 11$4,317 AUD
Retailer 5$4,488 AUD
Retailer 18$4,555 AUD
Retailer 3$4,582 AUD
Retailer 10$4,666 AUD
Retailer 6$4,868 AUD
Retailer 4$5,056 AUD
Retailer 9$5,056 AUD
Retailer 14$5,168 AUD
Retailer 12$5,248 AUD
Retailer 7$5,251 AUD
Retailer 8$5,266 AUD
Retailer 13$5,503 AUD
Retailer 16$5,519 AUD
Retailer 2$5,833 AUD
Retailer 15$6,171 AUD
Retailer 17$8,431 AUD
Retailer 20$8,810 AUD

30 data points across 20 retailers

24 retailers$3,768 AUD to $9,834 AUD

A
Cheapest Retailer
-
$3,768 AUD
A
Retailer 2
-
$3,781 AUD
View
B+
Retailer 3
-
$4,317 AUD
View
B+
Retailer 4
-
$4,488 AUD
View
B+
Retailer 5
-
$4,555 AUD
View
B+
Retailer 6
-
$4,582 AUD
View
B+
Retailer 7
-
$4,666 AUD
View
Final sale: no returns
B+
Retailer 8
-
$4,868 AUD
View
B+
Retailer 9
-
$5,056 AUD
View
Retailer 10
-
$5,056 AUD
View
Price last confirmed 8 days ago
Retailer 11
-
$5,138 AUD
View
Price last confirmed 43 days ago
B+
Retailer 12
-
$5,168 AUD
View
B+
Retailer 13
-
$5,248 AUD
View
B
Retailer 14
-
$5,251 AUD
View
B
Retailer 15
-
$5,266 AUD
View
Retailer 16
-
$5,503 AUD
View
Price last confirmed 29 days ago
B+
Retailer 17
-
$5,519 AUD
View
B
Retailer 18
-
$5,833 AUD
View
Retailer 19
-
$5,929 AUD
View
Price last confirmed 45 days ago
B+
Retailer 20
-
$6,171 AUD
View
B
Retailer 21
-
$8,431 AUD
View
B
Retailer 22
-
$8,810 AUD
View
Retailer 23
-
$8,952 AUD
View
Price last confirmed 42 days ago
Most Expensive
B
Diamond Quarter
1.01SI1G252251BDN · Nov 5
$9,834 AUD
£5,320 GBP
View
23 more retailers have this diamond
Prices start from $3,768 AUDSave up to $6,066 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
1.01ct Round
$3,768 AUD