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Oval|Natural|IGI

1.29ct H SI2 Oval Natural Diamond

ID • H/SI2 • IGI 386

Certificate IGI 386

Diamond specifications and retailer prices

From $2,889 AUD
As of November 6, 2026
Save $2,332 AUD (45%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: $5,221 AUD at Helzberg Diamonds · As of November 6, 2026
View at Helzberg Diamonds

About this 1.29ct natural oval diamond

This 1.29ct natural oval 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. Listed at 4 retailers as of November 6, 2026, with prices from $2,889 to $5,221, a $2,332 spread on the same certified stone. Helzberg Diamonds lists it at $5,221. 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
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabIGI
CertificateIGI 386
Dimensions8.70 × 6.25 × 3.77 mm
L/W Ratio1.39
Top View
8.70 mm6.25 mm1.29 ctH / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 386
Side View
Table 60.0%CrownGirdle: MED-STKPavilionCulet: NoneDepth 60.3%

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: $5,221 AUD|Low: $2,668 AUD|High: $6,146 AUD|Avg: $3,874 AUD|-15.1%
Helzberg Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 6, 2026
Retailer 5$2,668 AUD
Retailer 2$2,889 AUD
Retailer 3$2,914 AUD
Retailer 4$4,825 AUD
Helzberg Diamonds$5,221 AUD

29 data points across 5 retailers

4 retailers$2,889 AUD to $5,221 AUD

A
Cheapest Retailer
-
$2,889 AUD
A
Retailer 2
-
$2,914 AUD
View
A
Retailer 3
-
$4,825 AUD
View
Most Expensive
B+
Helzberg Diamonds
ZXZOIKMGKKHM · Nov 6
$5,221 AUD
$3,587 USD
View
3 more retailers have this diamond
Prices start from $2,889 AUDSave up to $2,332 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 Oval
$2,889 AUD