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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 $3,140 NZD
₹168,557 INR
As of November 1, 2026
Save $5,428 NZD (63%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $8,568 NZD 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 $3,140 to $8,568, a $5,428 spread on the same certified stone. NZ Jewellers lists it at $8,568. 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: $8,568 NZD|Low: $3,133 NZD|High: $8,568 NZD|Avg: $4,558 NZD|+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$3,140 NZD
Retailer 6$3,703 NZD
Retailer 15$3,770 NZD
Retailer 7$3,781 NZD
Retailer 9$3,889 NZD
Retailer 14$3,923 NZD
Retailer 4$4,099 NZD
Retailer 12$4,099 NZD
Retailer 13$4,288 NZD
Retailer 3$4,346 NZD
Retailer 11$4,698 NZD
Retailer 5$4,729 NZD
Retailer 2$4,870 NZD
Retailer 10$7,181 NZD
NZ Jewellers$8,568 NZD

27 data points across 15 retailers

15 retailers$3,140 NZD to $8,568 NZD

A
Cheapest Retailer
-
$3,140 NZD
₹168,557 INR
A
Retailer 2
-
$3,703 NZD
$2,087 USD
View
A
Retailer 3
-
$3,770 NZD
$2,125 USD
View
B+
Retailer 4
-
$3,781 NZD
$2,131 USD
View
Final sale: no returns
A
Retailer 5
-
$3,889 NZD
£1,726 GBP
View
A
Retailer 6
-
$3,923 NZD
$2,211 USD
View
A
Retailer 7
-
$4,099 NZD
$2,310 USD
View
A
Retailer 8
-
$4,099 NZD
$2,310 USD
View
A
Retailer 9
-
$4,288 NZD
$2,417 USD
View
A
Retailer 10
-
$4,346 NZD
$2,450 USD
View
A
Retailer 11
-
$4,698 NZD
£2,085 GBP
View
A
Retailer 12
-
$4,729 NZD
$2,665 USD
View
A
Retailer 13
-
$4,870 NZD
€2,614 EUR
View
B+
Retailer 14
-
$7,181 NZD
£3,187 GBP
View
Most Expensive
B
NZ Jewellers
281202a8-381d-4f81-ad21-f72f26e4eae4 · Oct 30
$8,568 NZD
$4,829 USD
View
14 more retailers have this diamond
Prices start from $3,140 NZDSave up to $5,428 NZD

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
$3,140 NZD