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Round|Natural|GIA

1.05ct F SI1 Round Natural Diamond

EX • F/SI1 • GIA 6565154005

Certificate GIA 6565154005

Diamond specifications and retailer prices

From $3,100 SGD
As of November 6, 2026
Save $4,231 SGD (58%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $7,331 SGD at NZ Jewellers · As of November 5, 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 6565154005. Listed at 10 retailers as of November 5, 2026, with prices from $3,100 to $7,331, a $4,231 spread on the same certified stone. NZ Jewellers lists it at $7,331. 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
FluorescenceFaint
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 6565154005
Dimensions6.42 × 6.45 × 4.02 mm
L/W Ratio1.00
Key to symbols
Crystal, Feather, Needle, Pinpoint, Cloud
Top View
6.42 mm6.45 mm1.05 ctF / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6565154005
Side View
Table 58.0%CrownGirdle: Slightly ThickPavilion 40.8°Culet: NoneDepth 62.4%

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: $7,331 SGD|Low: $3,100 SGD|High: $7,551 SGD|Avg: $4,728 SGD|-2.9%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 9$3,100 SGD
Retailer 7$3,600 SGD
Retailer 10$3,831 SGD
Retailer 2$4,027 SGD
Retailer 5$4,207 SGD
Retailer 3$4,320 SGD
Retailer 8$4,370 SGD
Retailer 4$4,819 SGD
Retailer 6$7,018 SGD
NZ Jewellers$7,331 SGD

20 data points across 10 retailers

10 retailers$3,100 SGD to $7,331 SGD

A
Cheapest Retailer
-
$3,100 SGD
A
Retailer 2
-
$3,600 SGD
View
Price last confirmed 3 days ago
Retailer 3
-
$3,831 SGD
View
Price last confirmed 8 days ago
B+
Retailer 4
-
$4,027 SGD
View
B+
Retailer 5
-
$4,207 SGD
View
B+
Retailer 6
-
$4,320 SGD
View
B+
Retailer 7
-
$4,370 SGD
View
B+
Retailer 8
-
$4,819 SGD
View
B
Retailer 9
-
$7,018 SGD
View
Most Expensive
B
NZ Jewellers
a0ea82f5-239f-4be0-b24e-886fd76c7c48 · Nov 5
$7,331 SGD
$5,720 USD
View
9 more retailers have this diamond
Prices start from $3,100 SGDSave up to $4,231 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
$3,100 SGD