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Round|Natural|IGI

1.30ct H SI1 Round Natural Diamond

EX • H/SI1 • IGI 716502643

Shape and cutting style on the report: Round brilliant

Certificate IGI 716502643

Diamond specifications and retailer prices

From $3,678 AUD
As of November 5, 2026
Save $4,499 AUD (55%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $8,992 AUD at Queensmith · As of October 20, 2026
View at Queensmith

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 H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI 716502643. Listed at 18 retailers as of November 4, 2026, with a 122% 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
H
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.6°
Pavilion angle40.6°
OriginNatural
Grading LabIGI
CertificateIGI 716502643
Dimensions6.92 × 6.97 × 4.31 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Top View
6.92 mm6.97 mm1.30 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 716502643
Side View
Table 58.0%Crown 36.6°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 62.0%

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 5
Current: $8,992 AUD|Low: $3,326 AUD|High: $9,011 AUD|Avg: $4,864 AUD|+3.0%
Queensmith
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 6, 2026
Retailer 10$3,326 AUD
Retailer 7$3,678 AUD
Retailer 12$3,790 AUD
Retailer 11$3,803 AUD
Retailer 3$3,820 AUD
Retailer 4$3,909 AUD
Retailer 2$4,691 AUD
Retailer 8$4,764 AUD
Retailer 6$5,352 AUD
Retailer 5$5,985 AUD
Retailer 9$8,176 AUD
Queensmith$8,992 AUD

28 data points across 12 retailers

18 retailers$3,678 AUD to $8,176 AUD

Retailer 1
-
$3,326 AUD
Price last confirmed 23 days ago
A
Retailer 2
-
$3,678 AUD
View
Retailer 3
-
$3,820 AUD
View
Price last confirmed 31 days ago
A
Retailer 4
-
$3,906 AUD
View
Retailer 5
-
$3,909 AUD
View
Price last confirmed 23 days ago
Retailer 6
-
$4,106 AUD
View
Price last confirmed 30 days ago
Retailer 7
-
$4,106 AUD
View
Price last confirmed 30 days ago
Retailer 8
-
$4,192 AUD
View
Price last confirmed 18 days ago
Retailer 9
-
$4,264 AUD
View
Price last confirmed 39 days ago
Retailer 10
-
$4,312 AUD
View
Price last confirmed 22 days ago
B+
Retailer 11
-
$4,691 AUD
View
Retailer 12
-
$4,737 AUD
View
Price last confirmed 29 days ago
A
Retailer 13
-
$4,764 AUD
View
B+
Retailer 14
-
$5,352 AUD
View
B+
Retailer 15
-
$5,985 AUD
View
B
Retailer 16
-
$8,176 AUD
View
Retailer 17
-
$8,584 AUD
View
Price last confirmed 40 days ago
Most Expensive
Queensmith
716502643 · Oct 20
$8,992 AUD
£4,865 GBP
View
Price last confirmed 17 days ago
17 more retailers have this diamond
Prices start from $3,678 AUDSave up to $4,499 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
$3,678 AUD