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Round|Natural|GIA

1.00ct G SI2 Round Natural Diamond

VG • G/SI2 • GIA 2566302813

Certificate GIA 2566302813

Diamond specifications and retailer prices

From $2,138 AUD
As of November 6, 2026
Save $4,847 AUD (69%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $6,985 AUD at NZ Jewellers · As of November 5, 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 SI2 clarity (slightly-included), with a very-good cut grade and certified by GIA 2566302813. Listed at 19 retailers as of November 5, 2026, with prices from $2,138 to $6,985, a $4,847 spread on the same certified stone. NZ Jewellers lists it at $6,985. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.00
Carat
G
Colour
SI2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle34.5°
Pavilion angle42.2°
OriginNatural
Grading LabGIA
CertificateGIA 2566302813
Dimensions6.29 × 6.23 × 4.02 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
Top View
6.29 mm6.23 mm1.00 ctG / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2566302813
Side View
Table 61.0%Crown 34.5°Girdle: STK-THKPavilion 42.2°Culet: NDepth 64.2%

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: $6,985 AUD|Low: $2,138 AUD|High: $6,985 AUD|Avg: $3,253 AUD|+14.1%
NZ Jewellers
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
November 6, 2026
Retailer 8$2,138 AUD
Retailer 9$2,218 AUD
Retailer 4$2,473 AUD
Retailer 16$2,590 AUD
Retailer 11$2,600 AUD
Retailer 5$2,611 AUD
Retailer 2$2,627 AUD
Retailer 7$2,643 AUD
Retailer 6$2,864 AUD
Retailer 10$2,980 AUD
Retailer 12$2,981 AUD
Retailer 19$2,996 AUD
Retailer 13$3,103 AUD
Retailer 3$3,304 AUD
Retailer 15$3,310 AUD
Retailer 14$3,676 AUD
Retailer 18$4,148 AUD
Retailer 17$5,003 AUD
NZ Jewellers$6,985 AUD

26 data points across 19 retailers

19 retailers$2,138 AUD to $6,985 AUD

A
Cheapest Retailer
-
$2,138 AUD
Retailer 2
-
$2,218 AUD
View
Price last confirmed 17 days ago
A
Retailer 3
-
$2,473 AUD
View
Retailer 4
-
$2,493 AUD
View
Price last confirmed 20 days ago
A
Retailer 5
-
$2,590 AUD
View
Retailer 6
-
$2,600 AUD
View
Price last confirmed 19 days ago
A
Retailer 7
-
$2,611 AUD
View
A
Retailer 8
-
$2,627 AUD
View
A
Retailer 9
-
$2,643 AUD
View
Final sale: no returns
A
Retailer 10
-
$2,864 AUD
View
A
Retailer 11
-
$2,981 AUD
View
A
Retailer 12
-
$2,996 AUD
View
A
Retailer 13
-
$3,103 AUD
View
A
Retailer 14
-
$3,304 AUD
View
A
Retailer 15
-
$3,310 AUD
View
B+
Retailer 16
-
$3,676 AUD
View
B+
Retailer 17
-
$4,148 AUD
View
B
Retailer 18
-
$5,003 AUD
View
Most Expensive
C
NZ Jewellers
aea2bd82-e878-478a-9d37-d6a4df82a19c · Nov 5
$6,985 AUD
$4,890 USD
View
18 more retailers have this diamond
Prices start from $2,138 AUDSave up to $4,847 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
$2,138 AUD