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Round|Natural|GIA

1.30ct D SI2 Round Natural Diamond

EX • D/SI2 • GIA 6485836623

Certificate GIA 6485836623

Diamond specifications and retailer prices

From $6,314 AUD
As of November 4, 2026
Save $7,475 AUD (54%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $13,789 AUD at NZ Jewellers · As of November 5, 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 D colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6485836623. Listed at 17 retailers as of November 4, 2026, with prices from $6,314 to $13,789, a $7,475 spread on the same certified stone. NZ Jewellers lists it at $13,789. 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
D
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle33.5°
Pavilion angle41.6°
OriginNatural
Grading LabGIA
CertificateGIA 6485836623
Dimensions6.99 × 6.95 × 4.36 mm
L/W Ratio1.01
Star length50%
Lower girdle80%
Top View
6.99 mm6.95 mm1.30 ctD / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6485836623
Side View
Table 57.0%Crown 33.5°Girdle: THN-STKPavilion 41.6°Culet: NoneDepth 62.8%

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 4
Current: $13,789 AUD|Low: $6,047 AUD|High: $13,789 AUD|Avg: $8,357 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
November 6, 2026
Retailer 12$6,314 AUD
Retailer 16$6,333 AUD
Retailer 4$6,514 AUD
Retailer 5$6,894 AUD
Retailer 17$7,391 AUD
Retailer 8$7,470 AUD
Retailer 9$7,470 AUD
Retailer 15$7,470 AUD
Retailer 2$7,911 AUD
Retailer 6$8,257 AUD
Retailer 14$8,257 AUD
Retailer 7$8,528 AUD
Retailer 10$8,535 AUD
Retailer 11$8,738 AUD
Retailer 3$9,095 AUD
Retailer 13$12,145 AUD
NZ Jewellers$13,789 AUD

42 data points across 17 retailers

17 retailers$6,314 AUD to $13,789 AUD

A
Cheapest Retailer
-
$6,314 AUD
A
Retailer 2
-
$6,333 AUD
View
A
Retailer 3
-
$6,514 AUD
View
A
Retailer 4
-
$6,894 AUD
View
Final sale: no returns
B+
Retailer 5
-
$7,391 AUD
View
B+
Retailer 6
-
$7,470 AUD
View
Retailer 7
-
$7,470 AUD
View
Price last confirmed 8 days ago
B+
Retailer 8
-
$7,470 AUD
View
B+
Retailer 9
-
$7,911 AUD
View
B+
Retailer 10
-
$8,257 AUD
View
B+
Retailer 11
-
$8,257 AUD
View
B+
Retailer 12
-
$8,528 AUD
View
B+
Retailer 13
-
$8,535 AUD
View
B+
Retailer 14
-
$8,738 AUD
View
Retailer 15
-
$9,095 AUD
View
Price last confirmed 14 days ago
B
Retailer 16
-
$12,145 AUD
View
Most Expensive
B
NZ Jewellers
4c0f18e2-428a-4981-b49e-78022fea541e · Nov 5
$13,789 AUD
$9,653 USD
View
16 more retailers have this diamond
Prices start from $6,314 AUDSave up to $7,475 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
$6,314 AUD