Round|Natural|GIA

1.30ct G SI1 Round Natural Diamond

EX • G/SI1 • GIA 1553741939

Certificate GIA 1553741939

Diamond specifications and retailer prices

From $5,544 AUD
As of November 5, 2026
Save $2,291 AUD (29%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $12,180 AUD at NZ Jewellers · As of October 3, 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 1553741939. Listed at 17 retailers as of November 5, 2026, with a 41% 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
SymmetryExcellent
FluorescenceNone
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 1553741939
Dimensions6.91 × 6.96 × 4.32 mm
L/W Ratio1.01
Key to symbols
Crystal, Cloud, Feather, Needle
Top View
6.91 mm6.96 mm1.30 ctG / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1553741939
Side View
Table 57.0%CrownGirdle: MED-STKPavilion 40.8°Culet: NoneDepth 62.3%

Caratlytics Score

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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 5
Current: $7,834 AUD|Low: $5,085 AUD|High: $11,616 AUD|Avg: $7,238 AUD|+9.7%
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
November 6, 2026
Retailer 5$5,085 AUD
Retailer 10$5,544 AUD
Retailer 13$5,753 AUD
Retailer 2$5,766 AUD
Retailer 15$6,185 AUD
Retailer 6$6,523 AUD
Retailer 7$6,875 AUD
Retailer 12$7,350 AUD
Retailer 14$7,350 AUD
Retailer 4$7,597 AUD
Retailer 8$7,641 AUD
Retailer 1$7,834 AUD
Retailer 3$7,968 AUD
Retailer 9$8,709 AUD
Retailer 11$11,553 AUD

34 data points across 15 retailers

17 retailers$5,544 AUD to $7,834 AUD

Retailer 1
-
$5,085 AUD
Price last confirmed 30 days ago
A
Retailer 2
-
$5,544 AUD
View
Retailer 3
-
$5,753 AUD
View
Price last confirmed 14 days ago
A
Retailer 4
-
$5,766 AUD
View
Retailer 5
-
$6,185 AUD
View
Price last confirmed 15 days ago
Retailer 6
-
$6,523 AUD
View
Price last confirmed 31 days ago
B+
Retailer 7
-
$6,875 AUD
View
Retailer 8
-
$6,992 AUD
View
Price last confirmed 30 days ago
Retailer 9
-
$7,044 AUD
View
Price last confirmed 39 days ago
Retailer 10
-
$7,350 AUD
View
Price last confirmed 12 days ago
Retailer 11
-
$7,597 AUD
View
Price last confirmed 12 days ago
B+
Retailer 12
-
$7,641 AUD
View
B+
Retailer 13
-
$7,834 AUD
View
Retailer 14
-
$7,968 AUD
View
Price last confirmed 24 days ago
Retailer 15
-
$8,709 AUD
View
Price last confirmed 16 days ago
Retailer 16
-
$11,553 AUD
View
Price last confirmed 19 days ago
Most Expensive
NZ Jewellers
d80baec7-4a94-43f8-a93a-a290ef5acf79 · Oct 3
$12,180 AUD
$8,369 USD
View
Price last confirmed 34 days ago
16 more retailers have this diamond
Prices start from $5,544 AUDSave up to $2,291 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
$5,544 AUD