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Radiant|Natural|GIA

1.20ct F SI1 Radiant Natural Diamond

EX • F/SI1 • GIA 5556393129

Certificate GIA 5556393129

Diamond specifications and retailer prices

From $4,160 SGD
As of November 4, 2026
Save $4,004 SGD (49%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $8,164 SGD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.2ct natural radiant diamond

This 1.2ct natural radiant sits in the classic one-carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 5556393129. Listed at 19 retailers as of November 4, 2026, with prices from $4,160 to $8,164, a $4,004 spread on the same certified stone. NZ Jewellers lists it at $8,164. 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

1.20
Carat
F
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle42.2°
OriginNatural
Grading LabGIA
CertificateGIA 5556393129
Dimensions7.49 × 5.26 × 3.65 mm
L/W Ratio1.42
Culet sizeNone
Key to symbols
Feather, Crystal, Cloud
Top View
7.49 mm5.26 mm1.20 ctF / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5556393129
Side View
Table 70.0%Crown 42.2°Girdle: ThickPavilionCulet: NoneDepth 69.4%

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 4
Current: $8,164 SGD|Low: $4,052 SGD|High: $8,650 SGD|Avg: $5,309 SGD|-5.6%
NZ Jewellers
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 7, 2026
Retailer 5$4,160 SGD
Retailer 14$4,281 SGD
Retailer 7$4,324 SGD
Retailer 9$4,498 SGD
Retailer 11$4,575 SGD
Retailer 3$4,686 SGD
Retailer 10$4,686 SGD
Retailer 13$4,848 SGD
Retailer 8$4,866 SGD
Retailer 4$4,871 SGD
Retailer 18$4,992 SGD
Retailer 6$5,091 SGD
Retailer 17$5,406 SGD
Retailer 15$5,454 SGD
Retailer 16$5,718 SGD
Retailer 2$5,984 SGD
Retailer 12$7,795 SGD
NZ Jewellers$8,164 SGD

24 data points across 18 retailers

19 retailers$4,160 SGD to $8,164 SGD

B+
Cheapest Retailer
-
$4,160 SGD
B+
Retailer 2
-
$4,281 SGD
View
B+
Retailer 3
-
$4,324 SGD
View
Final sale: no returns
B+
Retailer 4
-
$4,498 SGD
View
B+
Retailer 5
-
$4,575 SGD
View
B+
Retailer 6
-
$4,686 SGD
View
Retailer 7
-
$4,686 SGD
View
Price last confirmed 9 days ago
B+
Retailer 8
-
$4,848 SGD
View
B+
Retailer 9
-
$4,866 SGD
View
B+
Retailer 10
-
$4,871 SGD
View
B+
Retailer 11
-
$4,992 SGD
View
B+
Retailer 12
-
$5,091 SGD
View
Retailer 13
-
$5,217 SGD
View
Price last confirmed 30 days ago
B+
Retailer 14
-
$5,406 SGD
View
B+
Retailer 15
-
$5,454 SGD
View
B+
Retailer 16
-
$5,718 SGD
View
Retailer 17
-
$5,984 SGD
View
B
Retailer 18
-
$7,795 SGD
View
Most Expensive
B
NZ Jewellers
92481498-3960-449d-88fe-049ad514a65a · Nov 5
$8,164 SGD
$6,370 USD
View
18 more retailers have this diamond
Prices start from $4,160 SGDSave up to $4,004 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+
1.20ct Radiant
$4,160 SGD