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3.50ct J SI1 Round Natural Diamond

EX • J/SI1 • GIA 1555165785

Certificate GIA 1555165785

Diamond specifications and retailer prices

From $36,678 SGD
As of November 1, 2026
Save $22,436 SGD (38%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $59,115 SGD at Helzberg Diamonds · As of November 1, 2026
View at Helzberg Diamonds

About this 3.5ct natural round diamond

This 3.5ct natural round sits in the three to five carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1555165785. Listed at 13 retailers as of November 1, 2026, with prices from $36,678 to $59,115, a $22,436 spread on the same certified stone. Helzberg Diamonds lists it at $59,115. 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

3.50
Carat
J
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 1555165785
Dimensions9.59 × 9.66 × 6.03 mm
L/W Ratio1.01
Culet sizeNone
Top View
9.59 mm9.66 mm3.50 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1555165785
Side View
Table 58.0%Crown 35.5°Girdle: Slightly ThickPavilion 41.2°Culet: NoneDepth 62.7%

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 1
Current: $59,115 SGD|Low: $36,678 SGD|High: $60,322 SGD|Avg: $45,721 SGD|-2.0%
Helzberg Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 2, 2026
Retailer 7$36,678 SGD
Retailer 2$38,581 SGD
Retailer 12$39,077 SGD
Retailer 3$40,035 SGD
Retailer 10$41,163 SGD
Retailer 8$41,366 SGD
Retailer 11$44,498 SGD
Retailer 6$46,856 SGD
Retailer 4$47,045 SGD
Retailer 9$48,392 SGD
Retailer 5$56,325 SGD
Helzberg Diamonds$59,115 SGD

34 data points across 12 retailers

13 retailers$36,678 SGD to $59,115 SGD

B+
Cheapest Retailer
-
$36,678 SGD
B+
Retailer 2
-
$38,581 SGD
£23,754 GBP
View
B+
Retailer 3
-
$39,077 SGD
$30,555 USD
View
B+
Retailer 4
-
$40,035 SGD
$31,305 USD
View
B+
Retailer 5
-
$41,163 SGD
$32,186 USD
View
B+
Retailer 6
-
$41,366 SGD
View
B+
Retailer 7
-
$44,498 SGD
$34,794 USD
View
B+
Retailer 8
-
$46,856 SGD
€34,893 EUR
View
B+
Retailer 9
-
$47,045 SGD
$36,786 USD
View
B
Retailer 10
-
$48,392 SGD
$37,838 USD
View
B
Retailer 11
-
$50,564 SGD
$39,537 USD
View
B
Retailer 12
-
$56,325 SGD
$44,042 USD
View
Most Expensive
B
Helzberg Diamonds
XZRHLLLHMLNOL · Nov 1
$59,115 SGD
$46,223 USD
View
12 more retailers have this diamond
Prices start from $36,678 SGDSave up to $22,436 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+
3.50ct Round
$36,678 SGD