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Marquise|Natural|GIA

1.20ct F SI2 Marquise Natural Diamond

VG • F/SI2 • GIA 3555615862

Certificate GIA 3555615862

Diamond specifications and retailer prices

From $3,555 SGD
As of November 4, 2026
Save $3,209 SGD (47%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $6,764 SGD at Helzberg Diamonds · As of November 6, 2026
View at Helzberg Diamonds

About this 1.2ct natural marquise diamond

This 1.2ct natural marquise sits in the classic one-carat band, graded F colour (colourless) and SI2 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 3555615862. Listed at 12 retailers as of November 4, 2026, with prices from $3,555 to $6,764, a $3,209 spread on the same certified stone. Helzberg Diamonds lists it at $6,764. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.20
Carat
F
Colour
SI2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle39.74°
Pavilion angle39.75°
OriginNatural
Grading LabGIA
CertificateGIA 3555615862
Dimensions10.22 × 5.50 × 3.54 mm
L/W Ratio1.86
Culet sizeNone
Top View
10.22 mm5.50 mm1.20 ctF / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 3555615862
Side View
Table 58.0%Crown 39.74°Girdle: THN-VTKPavilion 39.75°Culet: NoneDepth 64.3%

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 4
Current: $6,764 SGD|Low: $3,555 SGD|High: $7,258 SGD|Avg: $4,778 SGD|-6.8%
Helzberg Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 6$3,555 SGD
Retailer 5$3,642 SGD
Retailer 7$3,833 SGD
Retailer 3$4,065 SGD
Retailer 4$4,151 SGD
Retailer 10$4,283 SGD
Retailer 8$4,571 SGD
Retailer 9$4,679 SGD
Retailer 2$4,728 SGD
Retailer 11$6,402 SGD
Helzberg Diamonds$6,764 SGD

39 data points across 11 retailers

12 retailers$3,555 SGD to $6,764 SGD

A
Cheapest Retailer
-
$3,555 SGD
A
Retailer 2
-
$3,642 SGD
View
A
Retailer 3
-
$3,833 SGD
View
A
Retailer 4
-
$4,065 SGD
View
A
Retailer 5
-
$4,151 SGD
View
A
Retailer 6
-
$4,283 SGD
View
B+
Retailer 7
-
$4,571 SGD
View
B+
Retailer 8
-
$4,679 SGD
View
B+
Retailer 9
-
$4,728 SGD
View
B+
Retailer 10
-
$5,249 SGD
View
B
Retailer 11
-
$6,402 SGD
View
Most Expensive
B
Helzberg Diamonds
XZRJLLLMHLOMI · Nov 6
$6,764 SGD
$5,278 USD
View
11 more retailers have this diamond
Prices start from $3,555 SGDSave up to $3,209 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
1.20ct Marquise
$3,555 SGD