Round|Natural|GIA

1.30ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 2235760608

Certificate GIA 2235760608

Diamond specifications and retailer prices

From $5,205 AUD
As of November 6, 2026
Save $2,762 AUD (35%) vs most expensive(unlock to see where)
29 retailers carry this diamond
Most expensive: $11,377 AUD at NZ Jewellers · As of October 20, 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 I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2235760608. Listed at 29 retailers as of November 5, 2026, with a 53% 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
I
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle36.5°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 2235760608
Dimensions6.96 × 6.92 × 4.33 mm
L/W Ratio1.01
Culet sizeNone
Top View
6.96 mm6.92 mm1.30 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2235760608
Side View
Table 58.0%Crown 36.5°Girdle: MED-STKPavilion 41°Culet: NoneDepth 62.6%

Caratlytics Score

How it works →
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 6
Current: $7,967 AUD|Low: $5,404 AUD|High: $10,525 AUD|Avg: $7,007 AUD|+1.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 5, 2026
Retailer 10$5,404 AUD
Retailer 11$5,459 AUD
Retailer 3$5,632 AUD
Retailer 9$5,916 AUD
Retailer 7$6,261 AUD
Retailer 6$6,573 AUD
Retailer 2$6,964 AUD
Retailer 4$7,300 AUD
Retailer 5$7,342 AUD
Retailer 1$7,967 AUD
Retailer 8$10,413 AUD

32 data points across 11 retailers

29 retailers$5,205 AUD to $7,967 AUD

A
Cheapest Retailer
-
$5,205 AUD
A
Retailer 2
-
$5,459 AUD
View
Final sale: no returns
B+
Retailer 3
-
$5,632 AUD
View
B+
Retailer 4
-
$5,897 AUD
View
Retailer 5
-
$5,916 AUD
View
Price last confirmed 13 days ago
Retailer 6
-
$5,916 AUD
View
Price last confirmed 30 days ago
Retailer 7
-
$5,916 AUD
View
Price last confirmed 22 days ago
Retailer 8
-
$5,916 AUD
View
Price last confirmed 16 days ago
Retailer 9
-
$5,916 AUD
View
Price last confirmed 39 days ago
B+
Retailer 10
-
$5,916 AUD
View
B+
Retailer 11
-
$6,261 AUD
View
Retailer 12
-
$6,261 AUD
View
Price last confirmed 29 days ago
B+
Retailer 13
-
$6,418 AUD
View
B+
Retailer 14
-
$6,418 AUD
View
B+
Retailer 15
-
$6,573 AUD
View
B+
Retailer 16
-
$6,622 AUD
View
Retailer 17
-
$6,826 AUD
View
Price last confirmed 29 days ago
Retailer 18
-
$6,826 AUD
View
Price last confirmed 17 days ago
Retailer 19
-
$6,826 AUD
View
Price last confirmed 15 days ago
Retailer 20
-
$6,964 AUD
View
Price last confirmed 29 days ago
B
Retailer 21
-
$7,300 AUD
View
B+
Retailer 22
-
$7,342 AUD
View
Retailer 23
-
$7,386 AUD
View
Price last confirmed 23 days ago
B+
Retailer 24
-
$7,967 AUD
View
Retailer 25
-
$10,413 AUD
View
Price last confirmed 13 days ago
Retailer 26
-
$11,377 AUD
View
Price last confirmed 15 days ago
Retailer 27
-
$11,377 AUD
View
Price last confirmed 49 days ago
Retailer 28
-
$11,377 AUD
View
Price last confirmed 42 days ago
Most Expensive
NZ Jewellers
d36fb97f-aa5b-4f4b-be20-5658110b2480 · Oct 20
$11,377 AUD
$7,817 USD
View
Price last confirmed 17 days ago
28 more retailers have this diamond
Prices start from $5,205 AUDSave up to $2,762 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
$5,205 AUD