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1.29ct J SI1 Round Natural Diamond

EX • J/SI1 • GIA 6515963227

Certificate GIA 6515963227

Diamond specifications and retailer prices

From $3,360 SGD
As of November 6, 2026
Save $4,250 SGD (56%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $7,610 SGD 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 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 November 5, 2026, with prices from $3,360 to $7,610, a $4,250 spread on the same certified stone. NZ Jewellers lists it at $7,610. 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 6
Current: $4,256 SGD|Low: $2,649 SGD|High: $6,453 SGD|Avg: $4,317 SGD
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 5, 2026
Retailer 4$3,360 SGD
Retailer 5$3,522 SGD
Retailer 6$4,181 SGD
Retailer 1$4,256 SGD
Retailer 3$4,295 SGD
Retailer 2$6,361 SGD

21 data points across 6 retailers

7 retailers$3,360 SGD to $7,610 SGD

B+
Cheapest Retailer
-
$3,360 SGD
Final sale: no returns
B+
Retailer 2
-
$3,522 SGD
View
B+
Retailer 3
-
$4,181 SGD
View
B+
Retailer 4
-
$4,256 SGD
View
B+
Retailer 5
-
$4,295 SGD
View
B
Retailer 6
-
$6,361 SGD
View
Most Expensive
B
NZ Jewellers
011ca95d-346c-4cf3-85be-111a1d57f8d7 · Nov 5
$7,610 SGD
$5,938 USD
View
6 more retailers have this diamond
Prices start from $3,360 SGDSave up to $4,250 SGD

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
$3,360 SGD