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Round|Natural|GIA

1.05ct F SI1 Round Natural Diamond

EX • F/SI1 • GIA 6541494535

Certificate GIA 6541494535

Diamond specifications and retailer prices

From $3,231 SGD
As of November 6, 2026
Save $3,468 SGD (52%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $7,218 SGD at NZ Jewellers · As of September 25, 2026
View at NZ Jewellers

About this 1.05ct natural round diamond

This 1.05ct 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 6541494535. Listed at 19 retailers as of November 4, 2026, with a 107% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

1.05
Carat
F
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 6541494535
Dimensions6.44 × 6.49 × 4.00 mm
L/W Ratio1.01
Top View
6.44 mm6.49 mm1.05 ctF / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6541494535
Side View
Table 60.0%Crown 35.5°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 61.9%

Caratlytics Score

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

Price History

Last verified: Nov 6
Current: $4,106 SGD|Low: $2,887 SGD|High: $7,012 SGD|Avg: $4,353 SGD|-1.9%
Retailer 1
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
Retailer 17
Retailer 18
November 6, 2026
Retailer 17$3,231 SGD
Retailer 10$3,469 SGD
Retailer 14$3,649 SGD
Retailer 9$3,683 SGD
Retailer 2$3,708 SGD
Retailer 15$3,822 SGD
Retailer 3$3,826 SGD
Retailer 8$3,928 SGD
Retailer 1$4,106 SGD
Retailer 7$4,256 SGD
Retailer 18$4,272 SGD
Retailer 4$4,434 SGD
Retailer 6$4,442 SGD
Retailer 5$4,496 SGD
Retailer 11$4,666 SGD
Retailer 12$4,902 SGD
Retailer 16$6,463 SGD
Retailer 13$6,699 SGD

25 data points across 18 retailers

19 retailers$3,231 SGD to $6,699 SGD

A
Cheapest Retailer
-
$3,231 SGD
A
Retailer 2
-
$3,649 SGD
View
Price last confirmed 3 days ago
A
Retailer 3
-
$3,708 SGD
View
Final sale: no returns
A
Retailer 4
-
$3,822 SGD
View
B+
Retailer 5
-
$3,826 SGD
View
Retailer 6
-
$3,928 SGD
View
Price last confirmed 37 days ago
B+
Retailer 7
-
$4,106 SGD
View
Retailer 8
-
$4,256 SGD
View
Price last confirmed 45 days ago
Retailer 9
-
$4,256 SGD
View
Price last confirmed 33 days ago
B+
Retailer 10
-
$4,263 SGD
View
B+
Retailer 11
-
$4,272 SGD
View
B+
Retailer 12
-
$4,434 SGD
View
Retailer 13
-
$4,442 SGD
View
Price last confirmed 34 days ago
B+
Retailer 14
-
$4,496 SGD
View
B+
Retailer 15
-
$4,666 SGD
View
B+
Retailer 16
-
$4,902 SGD
View
B
Retailer 17
-
$6,463 SGD
View
B
Retailer 18
-
$6,699 SGD
View
Most Expensive
NZ Jewellers
20ff54bb-8814-4b34-b9ed-4fb072bf2a3e · Sep 25
$7,218 SGD
$5,632 USD
View
Price last confirmed 42 days ago
18 more retailers have this diamond
Prices start from $3,231 SGDSave up to $3,468 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
1.05ct Round
$3,231 SGD