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Round|Natural|GIA

1.29ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 1413595348

Certificate GIA 1413595348

Diamond specifications and retailer prices

From $5,301 AUD
As of November 4, 2026
Save $5,193 AUD (49%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $10,493 AUD 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 GIA 1413595348. Listed at 14 retailers as of November 4, 2026, with prices from $5,301 to $10,493, a $5,193 spread on the same certified stone. NZ Jewellers lists it at $10,493. 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 angle41°
OriginNatural
Grading LabGIA
CertificateGIA 1413595348
Dimensions6.90 × 6.95 × 4.35 mm
L/W Ratio1.01
Star length50%
Lower girdle80%
Culet sizeNone
Top View
6.90 mm6.95 mm1.29 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1413595348
Side View
Table 57.0%Crown 36.5°Girdle: MED-STKPavilion 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: Nov 4
Current: $10,493 AUD|Low: $4,500 AUD|High: $10,493 AUD|Avg: $6,514 AUD|+13.2%
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
November 5, 2026
Retailer 4$5,301 AUD
Retailer 11$5,391 AUD
Retailer 5$5,560 AUD
Retailer 6$5,590 AUD
Retailer 8$5,682 AUD
Retailer 13$5,734 AUD
Retailer 10$6,024 AUD
Retailer 14$6,024 AUD
Retailer 12$6,238 AUD
Retailer 7$6,772 AUD
Retailer 3$6,950 AUD
Retailer 2$7,351 AUD
Retailer 9$9,831 AUD
NZ Jewellers$10,493 AUD

37 data points across 14 retailers

14 retailers$5,301 AUD to $10,493 AUD

A
Cheapest Retailer
-
$5,301 AUD
A
Retailer 2
-
$5,391 AUD
View
B+
Retailer 3
-
$5,560 AUD
View
Final sale: no returns
Retailer 4
-
$5,590 AUD
View
Price last confirmed 44 days ago
A
Retailer 5
-
$5,682 AUD
View
B+
Retailer 6
-
$5,734 AUD
View
Retailer 7
-
$6,024 AUD
View
Price last confirmed 9 days ago
B+
Retailer 8
-
$6,024 AUD
View
B+
Retailer 9
-
$6,238 AUD
View
B+
Retailer 10
-
$6,772 AUD
View
B
Retailer 11
-
$6,950 AUD
View
B+
Retailer 12
-
$7,351 AUD
View
B
Retailer 13
-
$9,831 AUD
View
Most Expensive
B
NZ Jewellers
ac07a730-ca1a-4f4b-aa31-0f9ae0dfae68 · Nov 5
$10,493 AUD
$7,210 USD
View
13 more retailers have this diamond
Prices start from $5,301 AUDSave up to $5,193 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
$5,301 AUD