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Round|Natural|GIA

1.05ct F SI2 Round Natural Diamond

EX • F/SI2 • GIA 6555581750

Certificate GIA 6555581750

Diamond specifications and retailer prices

From $2,884 SGD
As of November 4, 2026
Save $3,794 SGD (57%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $6,677 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 SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6555581750. Listed at 12 retailers as of November 4, 2026, with prices from $2,884 to $6,677, a $3,794 spread on the same certified stone. NZ Jewellers lists it at $6,677. 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
FluorescenceNone
Crown angle34.5°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 6555581750
Dimensions6.52 × 6.50 × 4.06 mm
L/W Ratio1.00
Star length50%
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Cloud, Feather, Needle
Top View
6.52 mm6.50 mm1.05 ctF / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6555581750
Side View
Table 56.0%Crown 34.5°Girdle: MED-STKPavilion 41°Culet: NoneDepth 61.8%

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 4
Current: $6,677 SGD|Low: $2,884 SGD|High: $6,949 SGD|Avg: $3,882 SGD|-3.9%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 6, 2026
Retailer 11$2,884 SGD
Retailer 2$2,887 SGD
Retailer 3$3,105 SGD
Retailer 12$3,194 SGD
Retailer 4$3,226 SGD
Retailer 9$3,341 SGD
Retailer 6$3,359 SGD
Retailer 5$3,440 SGD
Retailer 10$3,685 SGD
Retailer 7$3,961 SGD
Retailer 8$5,579 SGD
NZ Jewellers$6,677 SGD

29 data points across 12 retailers

12 retailers$2,884 SGD to $6,677 SGD

A
Cheapest Retailer
-
$2,884 SGD
A
Retailer 2
-
$2,887 SGD
View
A
Retailer 3
-
$3,105 SGD
View
A
Retailer 4
-
$3,194 SGD
View
Retailer 5
-
$3,226 SGD
View
Price last confirmed 8 days ago
A
Retailer 6
-
$3,341 SGD
View
A
Retailer 7
-
$3,359 SGD
View
A
Retailer 8
-
$3,440 SGD
View
A
Retailer 9
-
$3,685 SGD
View
B+
Retailer 10
-
$3,961 SGD
View
B+
Retailer 11
-
$5,579 SGD
View
Most Expensive
B
NZ Jewellers
d751fad7-a16e-4d9a-8ba7-00bbc9bdd159 · Nov 5
$6,677 SGD
$5,210 USD
View
11 more retailers have this diamond
Prices start from $2,884 SGDSave up to $3,794 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
$2,884 SGD