Round|Natural|GIA

1.30ct G SI2 Round Natural Diamond

EX • G/SI2 • GIA 6555978872

Certificate GIA 6555978872

Diamond specifications and retailer prices

From $5,945 AUD
As of November 5, 2026
Save $1,030 AUD (15%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $11,317 AUD at NZ Jewellers · As of October 9, 2026
View at NZ Jewellers

About this 1.3ct natural round diamond

This 1.3ct natural round sits in the one-and-a-quarter to one-and-a-half carat band, graded G colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6555978872. Listed at 16 retailers as of November 2, 2026, with a relatively tight 17% spread, which is unusual at this carat range and suggests competitive pricing across the listings. 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

1.30
Carat
G
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 6555978872
Dimensions6.91 × 6.94 × 4.37 mm
L/W Ratio1.00
Culet sizeNone
Top View
6.91 mm6.94 mm1.30 ctG / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6555978872
Side View
Table 57.0%Crown 35.5°Girdle: MED-STKPavilion 41°Culet: NoneDepth 63.1%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 5
Current: $11,317 AUD|Low: $5,178 AUD|High: $11,317 AUD|Avg: $7,128 AUD
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
November 2, 2026
Retailer 3$5,178 AUD
Retailer 8$5,277 AUD
Retailer 6$5,283 AUD
Retailer 9$5,867 AUD
Retailer 7$5,886 AUD
Retailer 16$5,886 AUD
Retailer 18$5,886 AUD
Retailer 11$5,945 AUD
Retailer 15$6,060 AUD
Retailer 12$6,172 AUD
Retailer 14$6,596 AUD
Retailer 4$6,791 AUD
Retailer 13$6,859 AUD
Retailer 2$6,976 AUD
Retailer 10$7,348 AUD
Retailer 5$9,489 AUD
Retailer 17$10,470 AUD
NZ Jewellers$11,317 AUD

23 data points across 18 retailers

16 retailers$5,945 AUD to $6,976 AUD

Retailer 1
-
$5,178 AUD
Price last confirmed 25 days ago
Retailer 2
-
$5,283 AUD
View
Price last confirmed 30 days ago
Retailer 3
-
$5,867 AUD
View
Price last confirmed 26 days ago
Retailer 4
-
$5,886 AUD
View
Price last confirmed 27 days ago
Retailer 5
-
$5,886 AUD
View
Price last confirmed 25 days ago
Retailer 6
-
$5,886 AUD
View
Price last confirmed 38 days ago
A
Retailer 7
-
$5,945 AUD
View
A
Retailer 8
-
$6,172 AUD
View
Retailer 9
-
$6,596 AUD
View
Price last confirmed 25 days ago
Retailer 10
-
$6,791 AUD
View
Price last confirmed 28 days ago
B+
Retailer 11
-
$6,859 AUD
View
B+
Retailer 12
-
$6,976 AUD
View
Retailer 13
-
$7,348 AUD
View
Price last confirmed 25 days ago
Retailer 14
-
$9,489 AUD
View
Price last confirmed 11 days ago
Retailer 15
-
$10,470 AUD
View
Price last confirmed 26 days ago
Most Expensive
NZ Jewellers
023a0375-c74b-4d1d-881d-f0cb36556b88 · Oct 9
$11,317 AUD
$7,776 USD
View
Price last confirmed 28 days ago
15 more retailers have this diamond
Prices start from $5,945 AUDSave up to $1,030 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
1.30ct Round
$5,945 AUD