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Round|Natural|GIA

1.29ct J SI1 Round Natural Diamond

EX • J/SI1 • GIA 5241083858

Certificate GIA 5241083858

Diamond specifications and retailer prices

From $2,849 SGD
As of November 5, 2026
Save $2,390 SGD (46%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $5,239 SGD at Helzberg Diamonds · As of November 6, 2026
View at Helzberg Diamonds

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 5241083858. Listed at 16 retailers as of November 5, 2026, with prices from $2,849 to $5,239, a $2,390 spread on the same certified stone. Helzberg Diamonds lists it at $5,239. 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
FluorescenceStrong
Crown angle34.5°
Pavilion angle41.4°
OriginNatural
Grading LabGIA
CertificateGIA 5241083858
Dimensions6.94 × 6.97 × 4.33 mm
L/W Ratio1.00
Culet sizeNone
Top View
6.94 mm6.97 mm1.29 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
CertificateGIA 5241083858
Side View
Table 58.0%Crown 34.5°Girdle: MED-STKPavilion 41.4°Culet: NoneDepth 62.2%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: $5,239 SGD|Low: $2,834 SGD|High: $5,294 SGD|Avg: $3,712 SGD|-1.0%
Helzberg Diamonds
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 6, 2026
Retailer 12$2,849 SGD
Retailer 4$2,963 SGD
Retailer 9$2,975 SGD
Retailer 2$2,995 SGD
Retailer 16$3,025 SGD
Retailer 15$3,046 SGD
Retailer 13$3,239 SGD
Retailer 8$3,317 SGD
Retailer 6$3,588 SGD
Retailer 7$3,754 SGD
Retailer 14$3,776 SGD
Retailer 10$3,820 SGD
Retailer 11$3,890 SGD
Retailer 3$4,645 SGD
Retailer 5$4,964 SGD
Helzberg Diamonds$5,239 SGD

37 data points across 16 retailers

16 retailers$2,849 SGD to $5,239 SGD

A
Cheapest Retailer
-
$2,849 SGD
A
Retailer 2
-
$2,963 SGD
View
A
Retailer 3
-
$2,975 SGD
View
A
Retailer 4
-
$2,995 SGD
View
A
Retailer 5
-
$3,025 SGD
View
A
Retailer 6
-
$3,046 SGD
View
A
Retailer 7
-
$3,239 SGD
View
B+
Retailer 8
-
$3,317 SGD
View
B+
Retailer 9
-
$3,588 SGD
View
B+
Retailer 10
-
$3,754 SGD
View
B+
Retailer 11
-
$3,776 SGD
View
B+
Retailer 12
-
$3,820 SGD
View
B+
Retailer 13
-
$3,890 SGD
View
B
Retailer 14
-
$4,645 SGD
View
B
Retailer 15
-
$4,964 SGD
View
Most Expensive
B
Helzberg Diamonds
XZRLIKHGOJOLO · Nov 6
$5,239 SGD
$4,088 USD
View
15 more retailers have this diamond
Prices start from $2,849 SGDSave up to $2,390 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.

A
1.29ct Round
$2,849 SGD