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Round|Natural|GIA

1.00ct G SI1 Round Natural Diamond

EX • G/SI1 • GIA 2567270628

Certificate GIA 2567270628

Diamond specifications and retailer prices

From $2,560 AUD
As of November 6, 2026
Save $3,387 AUD (57%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $7,198 AUD at NZ Jewellers · As of October 17, 2026
View at NZ Jewellers

About this 1ct natural round diamond

This 1ct 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 2567270628. Listed at 19 retailers as of November 4, 2026, with a 132% 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

1.00
Carat
G
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
Crown angle35.5°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 2567270628
Dimensions6.40 × 6.38 × 4.00 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizeNone
Top View
6.40 mm6.38 mm1.00 ctG / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 2567270628
Side View
Table 57.0%Crown 35.5°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 62.6%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $2,560 AUD|Low: $2,560 AUD|High: $6,064 AUD|Avg: $3,479 AUD|-3.3%
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
November 6, 2026
Retailer 1$2,560 AUD
Retailer 6$2,560 AUD
Retailer 5$2,883 AUD
Retailer 11$2,918 AUD
Retailer 14$2,978 AUD
Retailer 3$3,104 AUD
Retailer 10$3,123 AUD
Retailer 4$3,140 AUD
Retailer 7$3,257 AUD
Retailer 12$3,614 AUD
Retailer 9$3,900 AUD
Retailer 8$4,001 AUD
Retailer 2$4,941 AUD
Retailer 13$5,947 AUD

22 data points across 14 retailers

19 retailers$2,560 AUD to $5,947 AUD

A
Cheapest Retailer
-
$2,560 AUD
A
Retailer 2
-
$2,560 AUD
View
Retailer 3
-
$2,883 AUD
View
Price last confirmed 11 days ago
A
Retailer 4
-
$2,918 AUD
View
A
Retailer 5
-
$2,978 AUD
View
A
Retailer 6
-
$3,104 AUD
View
A
Retailer 7
-
$3,123 AUD
View
A
Retailer 8
-
$3,127 AUD
View
A
Retailer 9
-
$3,140 AUD
View
Final sale: no returns
A
Retailer 10
-
$3,257 AUD
View
Retailer 11
-
$3,443 AUD
View
Price last confirmed 19 days ago
A
Retailer 12
-
$3,614 AUD
View
Retailer 13
-
$3,643 AUD
View
Price last confirmed 22 days ago
A
Retailer 14
-
$3,900 AUD
View
Retailer 15
-
$3,973 AUD
View
Price last confirmed 19 days ago
B+
Retailer 16
-
$4,001 AUD
View
B+
Retailer 17
-
$4,941 AUD
View
B
Retailer 18
-
$5,947 AUD
View
Most Expensive
NZ Jewellers
70971cb7-2c63-445b-9832-600e7f6dc01d · Oct 17
$7,198 AUD
$5,039 USD
View
Price last confirmed 20 days ago
18 more retailers have this diamond
Prices start from $2,560 AUDSave up to $3,387 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
1.00ct Round
$2,560 AUD