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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 $2,263 SGD
₹168,557 INR
As of November 1, 2026
Save $3,911 SGD (63%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $6,173 SGD 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 $2,263 to $6,173, a $3,911 spread on the same certified stone. NZ Jewellers lists it at $6,173. 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: $6,173 SGD|Low: $2,257 SGD|High: $6,173 SGD|Avg: $3,284 SGD|+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$2,263 SGD
Retailer 6$2,668 SGD
Retailer 15$2,717 SGD
Retailer 7$2,724 SGD
Retailer 9$2,802 SGD
Retailer 14$2,827 SGD
Retailer 4$2,953 SGD
Retailer 12$2,953 SGD
Retailer 13$3,090 SGD
Retailer 3$3,131 SGD
Retailer 11$3,385 SGD
Retailer 5$3,407 SGD
Retailer 2$3,509 SGD
Retailer 10$5,174 SGD
NZ Jewellers$6,173 SGD

27 data points across 15 retailers

15 retailers$2,263 SGD to $6,173 SGD

A
Cheapest Retailer
-
$2,263 SGD
₹168,557 INR
A
Retailer 2
-
$2,668 SGD
$2,087 USD
View
A
Retailer 3
-
$2,717 SGD
$2,125 USD
View
B+
Retailer 4
-
$2,724 SGD
$2,131 USD
View
Final sale: no returns
A
Retailer 5
-
$2,802 SGD
£1,726 GBP
View
A
Retailer 6
-
$2,827 SGD
$2,211 USD
View
A
Retailer 7
-
$2,953 SGD
$2,310 USD
View
A
Retailer 8
-
$2,953 SGD
$2,310 USD
View
A
Retailer 9
-
$3,090 SGD
$2,417 USD
View
A
Retailer 10
-
$3,131 SGD
$2,450 USD
View
A
Retailer 11
-
$3,385 SGD
£2,085 GBP
View
A
Retailer 12
-
$3,407 SGD
$2,665 USD
View
A
Retailer 13
-
$3,509 SGD
€2,614 EUR
View
B+
Retailer 14
-
$5,174 SGD
£3,187 GBP
View
Most Expensive
B
NZ Jewellers
281202a8-381d-4f81-ad21-f72f26e4eae4 · Oct 30
$6,173 SGD
$4,829 USD
View
14 more retailers have this diamond
Prices start from $2,263 SGDSave up to $3,911 SGD

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
$2,263 SGD