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Round|Natural|IGI

1.29ct I SI1 Round Natural Diamond

EX • I/SI1 • IGI 826667616

Shape and cutting style on the report: Round brilliant

Certificate IGI 826667616

Diamond specifications and retailer prices

From $4,221 NZD
As of November 6, 2026
Save $5,632 NZD (57%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $9,853 NZD at NZ Jewellers · As of November 5, 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 SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI 826667616. Listed at 15 retailers as of November 5, 2026, with prices from $4,221 to $9,853, a $5,632 spread on the same certified stone. NZ Jewellers lists it at $9,853. 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
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.5°
Pavilion angle40.6°
OriginNatural
Grading LabIGI
CertificateIGI 826667616
Dimensions6.85 × 6.90 × 4.31 mm
L/W Ratio1.01
Girdle conditionFaceted
Top View
6.85 mm6.90 mm1.29 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 826667616
Side View
Table 58.0%Crown 36.5°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 62.8%

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 6
Current: $9,853 NZD|Low: $4,070 NZD|High: $10,059 NZD|Avg: $5,588 NZD|-2.0%
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 7, 2026
Retailer 4$4,221 NZD
Retailer 5$4,349 NZD
Retailer 6$4,510 NZD
Retailer 12$4,654 NZD
Retailer 3$4,714 NZD
Retailer 13$4,714 NZD
Retailer 7$4,733 NZD
Retailer 14$4,894 NZD
Retailer 2$5,046 NZD
Retailer 15$5,439 NZD
Retailer 8$5,520 NZD
Retailer 10$5,753 NZD
Retailer 9$5,839 NZD
Retailer 11$8,235 NZD
NZ Jewellers$9,853 NZD

37 data points across 15 retailers

15 retailers$4,221 NZD to $9,853 NZD

A
Cheapest Retailer
-
$4,221 NZD
A
Retailer 2
-
$4,349 NZD
View
Final sale: no returns
A
Retailer 3
-
$4,510 NZD
View
A
Retailer 4
-
$4,654 NZD
View
Retailer 5
-
$4,714 NZD
View
Price last confirmed 9 days ago
A
Retailer 6
-
$4,714 NZD
View
A
Retailer 7
-
$4,733 NZD
View
A
Retailer 8
-
$4,894 NZD
View
A
Retailer 9
-
$5,046 NZD
View
A
Retailer 10
-
$5,439 NZD
View
A
Retailer 11
-
$5,520 NZD
View
A
Retailer 12
-
$5,753 NZD
View
A
Retailer 13
-
$5,839 NZD
View
B+
Retailer 14
-
$8,235 NZD
View
Most Expensive
B
NZ Jewellers
0b5aed81-2d88-431e-9682-5718c1024ac9 · Nov 5
$9,853 NZD
$5,462 USD
View
14 more retailers have this diamond
Prices start from $4,221 NZDSave up to $5,632 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
$4,221 NZD