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Round|Natural|IGI

1.29ct I SI2 Round Natural Diamond

EX • I/SI2 • IGI 830652864

Shape and cutting style on the report: Round brilliant

Certificate IGI 830652864

Diamond specifications and retailer prices

From $2,520 AUD
₹168,557 INR
As of November 1, 2026
Save $4,355 AUD (63%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $6,875 AUD at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 1.29ct natural round diamond

This 1.29ct natural round sits in the one-and-a-quarter to one-and-a-half carat band, graded I colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI 830652864. Listed at 15 retailers as of October 30, 2026, with prices from $2,520 to $6,875, a $4,355 spread on the same certified stone. NZ Jewellers lists it at $6,875. 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

1.29
Carat
I
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.5°
Pavilion angle41.1°
OriginNatural
Grading LabIGI
CertificateIGI 830652864
Dimensions6.91 × 6.94 × 4.34 mm
L/W Ratio1.00
Girdle conditionFaceted
Top View
6.91 mm6.94 mm1.29 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 830652864
Side View
Table 58.0%Crown 36.5°Girdle: MED-STKPavilion 41.1°Culet: NoneDepth 62.7%

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 1
Current: $6,875 AUD|Low: $2,514 AUD|High: $6,875 AUD|Avg: $3,657 AUD|+3.4%
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
November 1, 2026
Retailer 8$2,520 AUD
Retailer 6$2,971 AUD
Retailer 15$3,025 AUD
Retailer 7$3,034 AUD
Retailer 9$3,121 AUD
Retailer 14$3,148 AUD
Retailer 4$3,289 AUD
Retailer 12$3,289 AUD
Retailer 13$3,441 AUD
Retailer 3$3,487 AUD
Retailer 11$3,770 AUD
Retailer 5$3,794 AUD
Retailer 2$3,907 AUD
Retailer 10$5,762 AUD
NZ Jewellers$6,875 AUD

27 data points across 15 retailers

15 retailers$2,520 AUD to $6,875 AUD

A
Cheapest Retailer
-
$2,520 AUD
₹168,557 INR
A
Retailer 2
-
$2,971 AUD
$2,087 USD
View
A
Retailer 3
-
$3,025 AUD
$2,125 USD
View
B+
Retailer 4
-
$3,034 AUD
$2,131 USD
View
Final sale: no returns
A
Retailer 5
-
$3,121 AUD
£1,726 GBP
View
A
Retailer 6
-
$3,148 AUD
$2,211 USD
View
A
Retailer 7
-
$3,289 AUD
$2,310 USD
View
A
Retailer 8
-
$3,289 AUD
$2,310 USD
View
A
Retailer 9
-
$3,441 AUD
$2,417 USD
View
A
Retailer 10
-
$3,487 AUD
$2,450 USD
View
A
Retailer 11
-
$3,770 AUD
£2,085 GBP
View
A
Retailer 12
-
$3,794 AUD
$2,665 USD
View
A
Retailer 13
-
$3,907 AUD
€2,614 EUR
View
B+
Retailer 14
-
$5,762 AUD
£3,187 GBP
View
Most Expensive
B
NZ Jewellers
281202a8-381d-4f81-ad21-f72f26e4eae4 · Oct 30
$6,875 AUD
$4,829 USD
View
14 more retailers have this diamond
Prices start from $2,520 AUDSave up to $4,355 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
1.29ct Round
$2,520 AUD