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Marquise|Natural|GIA

1.20ct H SI1 Marquise Natural Diamond

GD • H/SI1 • GIA 1559555055

Certificate GIA 1559555055

Diamond specifications and retailer prices

From $3,078 SGD
As of November 5, 2026
Save $3,073 SGD (50%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $6,151 SGD at Wholesale Diamonds Direct · As of November 6, 2026
View at Wholesale Diamonds Direct

About this 1.2ct natural marquise diamond

This 1.2ct natural marquise sits in the classic one-carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 1559555055. Listed at 11 retailers as of November 5, 2026, with prices from $3,078 to $6,151, a $3,073 spread on the same certified stone. Wholesale Diamonds Direct lists it at $6,151. 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
H
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle43.93°
Pavilion angle41.62°
OriginNatural
Grading LabGIA
CertificateGIA 1559555055
Dimensions9.84 × 5.39 × 3.65 mm
L/W Ratio1.83
Culet sizeNone
Top View
9.84 mm5.39 mm1.20 ctH / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1559555055
Side View
Table 61.0%Crown 43.93°Girdle: THN-VTKPavilion 41.62°Culet: NoneDepth 67.7%

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 5
Current: $3,673 SGD|Low: $3,062 SGD|High: $6,912 SGD|Avg: $4,641 SGD|-11.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Wholesale Diamonds Direct
November 6, 2026
Retailer 3$3,078 SGD
Retailer 4$3,406 SGD
Retailer 1$3,673 SGD
Retailer 8$4,104 SGD
Retailer 6$4,391 SGD
Retailer 9$4,445 SGD
Retailer 7$4,507 SGD
Retailer 2$4,530 SGD
Retailer 5$5,747 SGD
Wholesale Diamonds Direct$6,151 SGD

32 data points across 10 retailers

11 retailers$3,078 SGD to $6,151 SGD

A
Cheapest Retailer
-
$3,078 SGD
A
Retailer 2
-
$3,406 SGD
View
B+
Retailer 3
-
$3,673 SGD
View
B+
Retailer 4
-
$4,104 SGD
View
B+
Retailer 5
-
$4,391 SGD
View
B+
Retailer 6
-
$4,445 SGD
View
B+
Retailer 7
-
$4,507 SGD
View
B+
Retailer 8
-
$4,530 SGD
View
B
Retailer 9
-
$5,238 SGD
View
B
Retailer 10
-
$5,747 SGD
View
Most Expensive
B
Wholesale Diamonds Direct
643535015 · Nov 6
$6,151 SGD
$4,800 USD
View
10 more retailers have this diamond
Prices start from $3,078 SGDSave up to $3,073 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
$3,078 SGD