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Round|Natural|GIA

1.03ct F SI1 Round Natural Diamond

EX • F/SI1 • GIA 3555313511

Certificate GIA 3555313511

Diamond specifications and retailer prices

From $4,413 SGD
$3,451 USD
As of November 1, 2026
Save $4,325 SGD (49%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $8,739 SGD at NZ Jewellers · As of November 2, 2026
View at NZ Jewellers

About this 1.03ct natural round diamond

This 1.03ct natural round sits in the classic one-carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 3555313511. Listed at 14 retailers as of November 1, 2026, with prices from $4,413 to $8,739, a $4,325 spread on the same certified stone. NZ Jewellers lists it at $8,739. 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

1.03
Carat
F
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34°
Pavilion angle41.4°
OriginNatural
Grading LabGIA
CertificateGIA 3555313511
Dimensions6.44 × 6.48 × 4.05 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
Top View
6.44 mm6.48 mm1.03 ctF / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 3555313511
Side View
Table 56.0%Crown 34°Girdle: MED-STKPavilion 41.4°Culet: NoneDepth 62.6%

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: $4,826 SGD|Low: $4,243 SGD|High: $8,490 SGD|Avg: $5,436 SGD|-1.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 2, 2026
Retailer 10$4,413 SGD
Retailer 2$4,551 SGD
Retailer 7$4,628 SGD
Retailer 9$4,789 SGD
Retailer 1$4,826 SGD
Retailer 8$5,378 SGD
Retailer 4$5,652 SGD
Retailer 6$5,742 SGD
Retailer 5$6,165 SGD
Retailer 3$8,389 SGD

45 data points across 10 retailers

14 retailers$4,413 SGD to $8,739 SGD

B+
Cheapest Retailer
-
$4,413 SGD
$3,451 USD
B+
Retailer 2
-
$4,551 SGD
$3,559 USD
View
B+
Retailer 3
-
$4,628 SGD
$3,619 USD
View
Final sale: no returns
B+
Retailer 4
-
$4,789 SGD
$3,745 USD
View
B+
Retailer 5
-
$4,826 SGD
£2,971 GBP
View
B+
Retailer 6
-
$5,016 SGD
$3,922 USD
View
B+
Retailer 7
-
$5,016 SGD
$3,922 USD
View
Retailer 8
-
$5,378 SGD
A$6,470 AUD
View
Price last confirmed 29 days ago
B+
Retailer 9
-
$5,652 SGD
€4,209 EUR
View
B+
Retailer 10
-
$5,742 SGD
£3,535 GBP
View
B
Retailer 11
-
$5,787 SGD
$4,525 USD
View
B
Retailer 12
-
$6,165 SGD
ZAR 77,882 ZAR
View
B
Retailer 13
-
$8,389 SGD
£5,165 GBP
View
Most Expensive
B
NZ Jewellers
d7a31d5f-94ce-4b5e-be25-37c40f38f9f7 · Nov 2
$8,739 SGD
$6,833 USD
View
13 more retailers have this diamond
Prices start from $4,413 SGDSave up to $4,325 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+
1.03ct Round
$4,413 SGD