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Round|Natural|GIA

1.05ct F SI2 Round Natural Diamond

EX • F/SI2 • GIA 2235458854

Certificate GIA 2235458854

Diamond specifications and retailer prices

From $3,763 SGD
As of November 6, 2026
Save $4,055 SGD (52%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $7,818 SGD at Diamond Quarter · As of November 5, 2026
View at Diamond Quarter

About this 1.05ct natural round diamond

This 1.05ct natural round sits in the classic one-carat band, graded F colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2235458854. Listed at 10 retailers as of November 5, 2026, with prices from $3,763 to $7,818, a $4,055 spread on the same certified stone. Diamond Quarter lists it at $7,818. 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
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
Crown angle36°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 2235458854
Dimensions6.55 × 6.52 × 4.04 mm
L/W Ratio1.00
Star length50%
Lower girdle80%
Culet sizeNone
Top View
6.55 mm6.52 mm1.05 ctF / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 2235458854
Side View
Table 59.0%Crown 36°Girdle: THN-MEDPavilion 41.2°Culet: NoneDepth 61.7%

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 6
Current: $5,325 SGD|Low: $3,563 SGD|High: $6,084 SGD|Avg: $4,698 SGD|+2.2%
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
November 5, 2026
Retailer 11$3,563 SGD
Retailer 8$3,763 SGD
Retailer 7$3,806 SGD
Retailer 13$3,824 SGD
Retailer 6$4,113 SGD
Retailer 9$4,496 SGD
Retailer 10$4,780 SGD
Retailer 3$4,985 SGD
Retailer 12$4,985 SGD
Retailer 14$5,073 SGD
Retailer 2$5,152 SGD
Retailer 1$5,325 SGD
Retailer 4$5,788 SGD
Retailer 5$6,084 SGD

21 data points across 14 retailers

10 retailers$3,763 SGD to $7,818 SGD

B+
Cheapest Retailer
-
$3,763 SGD
A
Retailer 2
-
$3,806 SGD
View
B+
Retailer 3
-
$3,824 SGD
View
B+
Retailer 4
-
$4,496 SGD
View
B
Retailer 5
-
$4,780 SGD
View
B+
Retailer 6
-
$4,985 SGD
View
B+
Retailer 7
-
$4,985 SGD
View
B+
Retailer 8
-
$5,152 SGD
View
B+
Retailer 9
-
$5,325 SGD
View
Most Expensive
B
Diamond Quarter
1.05SI2F225422B5N · Nov 5
$7,818 SGD
£4,803 GBP
View
9 more retailers have this diamond
Prices start from $3,763 SGDSave up to $4,055 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
$3,763 SGD