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Round|Natural|GIA

1.29ct J SI1 Round Natural Diamond

EX • J/SI1 • GIA 6515963227

Certificate GIA 6515963227

Diamond specifications and retailer prices

From $3,733 AUD
$2,622 USD
As of November 2, 2026
Save $4,721 AUD (56%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $8,453 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 J colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6515963227. Listed at 7 retailers as of October 30, 2026, with prices from $3,733 to $8,453, a $4,721 spread on the same certified stone. NZ Jewellers lists it at $8,453. 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
J
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle35°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 6515963227
Dimensions6.91 × 6.97 × 4.29 mm
L/W Ratio1.01
Star length50%
Top View
6.91 mm6.97 mm1.29 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6515963227
Side View
Table 60.0%Crown 35°Girdle: STK-STKPavilion 41.2°Culet: NoneDepth 61.9%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: $4,771 AUD|Low: $2,943 AUD|High: $7,169 AUD|Avg: $4,780 AUD|-14.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 2, 2026
Retailer 4$3,733 AUD
Retailer 5$3,912 AUD
Retailer 6$4,645 AUD
Retailer 3$4,728 AUD
Retailer 1$4,771 AUD
Retailer 2$7,084 AUD

22 data points across 6 retailers

7 retailers$3,733 AUD to $8,453 AUD

B+
Cheapest Retailer
-
$3,733 AUD
$2,622 USD
Final sale: no returns
B+
Retailer 2
-
$3,912 AUD
$2,748 USD
View
B+
Retailer 3
-
$4,645 AUD
$3,263 USD
View
B+
Retailer 4
-
$4,728 AUD
£2,615 GBP
View
B+
Retailer 5
-
$4,771 AUD
€3,192 EUR
View
B
Retailer 6
-
$7,084 AUD
£3,918 GBP
View
Most Expensive
B
NZ Jewellers
011ca95d-346c-4cf3-85be-111a1d57f8d7 · Oct 30
$8,453 AUD
$5,938 USD
View
6 more retailers have this diamond
Prices start from $3,733 AUDSave up to $4,721 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.

B+
1.29ct Round
$3,733 AUD