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Round|Natural|IGI

1.29ct H SI2 Round Natural Diamond

EX • H/SI2 • IGI 670444282

Shape and cutting style on the report: Round brilliant

Certificate IGI 670444282

Diamond specifications and retailer prices

From $4,830 AUD
$3,393 USD
As of October 30, 2026
Save $4,736 AUD (50%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $9,567 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 H colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI 670444282. Listed at 13 retailers as of October 30, 2026, with prices from $4,830 to $9,567, a $4,736 spread on the same certified stone. NZ Jewellers lists it at $9,567. 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
H
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.5°
Pavilion angle41°
OriginNatural
Grading LabIGI
CertificateIGI 670444282
Dimensions6.96 × 6.91 × 4.35 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Top View
6.96 mm6.91 mm1.29 ctH / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 670444282
Side View
Table 57.0%Crown 36.5°Girdle: MediumPavilion 41°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: Oct 30
Current: $9,567 AUD|Low: $4,533 AUD|High: $9,567 AUD|Avg: $6,213 AUD|+2.5%
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
Retailer 16
November 1, 2026
Retailer 3$4,830 AUD
Retailer 5$4,873 AUD
Retailer 11$4,940 AUD
Retailer 14$4,985 AUD
Retailer 13$5,067 AUD
Retailer 2$5,138 AUD
Retailer 4$5,491 AUD
Retailer 16$5,491 AUD
Retailer 12$5,702 AUD
Retailer 15$6,335 AUD
Retailer 6$6,375 AUD
Retailer 10$6,429 AUD
Retailer 8$6,543 AUD
Retailer 7$8,654 AUD
Retailer 9$9,183 AUD
NZ Jewellers$9,567 AUD

37 data points across 16 retailers

13 retailers$4,830 AUD to $9,567 AUD

A
Cheapest Retailer
-
$4,830 AUD
$3,393 USD
Retailer 2
-
$4,940 AUD
$3,470 USD
View
Price last confirmed 11 days ago
A
Retailer 3
-
$4,985 AUD
$3,502 USD
View
B+
Retailer 4
-
$5,067 AUD
$3,559 USD
View
Final sale: no returns
A
Retailer 5
-
$5,138 AUD
£2,842 GBP
View
B+
Retailer 6
-
$5,491 AUD
$3,857 USD
View
B+
Retailer 7
-
$5,491 AUD
$3,857 USD
View
B+
Retailer 8
-
$5,702 AUD
$4,005 USD
View
B+
Retailer 9
-
$6,065 AUD
£3,355 GBP
View
B+
Retailer 10
-
$6,335 AUD
$4,450 USD
View
B+
Retailer 11
-
$6,429 AUD
€4,301 EUR
View
B
Retailer 12
-
$9,183 AUD
£5,079 GBP
View
Most Expensive
B
NZ Jewellers
d3273f70-975b-4488-8981-a1337a750251 · Oct 30
$9,567 AUD
$6,720 USD
View
12 more retailers have this diamond
Prices start from $4,830 AUDSave up to $4,736 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
$4,830 AUD