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Round|Natural|GIA

1.30ct G SI1 Round Natural Diamond

EX • G/SI1 • GIA 7558130488

Certificate GIA 7558130488

Diamond specifications and retailer prices

From $6,404 AUD
As of November 4, 2026
Save $6,474 AUD (50%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $13,559 AUD at NZ Jewellers · As of September 10, 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 SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 7558130488. Listed at 16 retailers as of November 4, 2026, with a 101% 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

1.30
Carat
G
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
Crown angle33°
Pavilion angle41.8°
OriginNatural
Grading LabGIA
CertificateGIA 7558130488
Dimensions6.92 × 6.97 × 4.39 mm
L/W Ratio1.01
Girdle conditionSlightly Thick
Key to symbols
Crystal, Knot, Feather, Needle, Indented Natural
Top View
6.92 mm6.97 mm1.30 ctG / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 7558130488
Side View
Table 58.0%Crown 33°Girdle: Slightly ThickPavilion 41.8°Culet: NoneDepth 63.2%

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 4
Current: $8,706 AUD|Low: $6,404 AUD|High: $13,579 AUD|Avg: $8,504 AUD|+2.1%
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
November 6, 2026
Retailer 3$6,404 AUD
Retailer 7$6,884 AUD
Retailer 16$6,906 AUD
Retailer 5$7,274 AUD
Retailer 6$7,344 AUD
Retailer 12$7,372 AUD
Retailer 8$7,407 AUD
Retailer 13$7,714 AUD
Retailer 9$7,785 AUD
Retailer 15$8,120 AUD
Retailer 14$8,571 AUD
Retailer 1$8,706 AUD
Retailer 2$8,945 AUD
Retailer 11$9,964 AUD
Retailer 4$11,859 AUD
Retailer 10$12,877 AUD

37 data points across 16 retailers

16 retailers$6,404 AUD to $12,877 AUD

A
Cheapest Retailer
-
$6,404 AUD
B+
Retailer 2
-
$6,906 AUD
View
B+
Retailer 3
-
$7,274 AUD
View
Retailer 4
-
$7,344 AUD
View
Price last confirmed 57 days ago
B+
Retailer 5
-
$7,372 AUD
View
B+
Retailer 6
-
$7,714 AUD
View
B+
Retailer 7
-
$7,785 AUD
View
Retailer 8
-
$8,120 AUD
View
Price last confirmed 29 days ago
Retailer 9
-
$8,475 AUD
View
Price last confirmed 61 days ago
B
Retailer 10
-
$8,571 AUD
View
B+
Retailer 11
-
$8,706 AUD
View
Retailer 12
-
$8,945 AUD
View
Price last confirmed 15 days ago
B
Retailer 13
-
$9,964 AUD
View
B
Retailer 14
-
$11,859 AUD
View
B
Retailer 15
-
$12,877 AUD
View
Most Expensive
NZ Jewellers
ace354a6-b53f-42f0-9e5d-5103f7c77a96 · Sep 10
$13,559 AUD
$9,316 USD
View
Price last confirmed 57 days ago
15 more retailers have this diamond
Prices start from $6,404 AUDSave up to $6,474 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
$6,404 AUD