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Marquise|Natural|GIA

1.20ct H SI1 Marquise Natural Diamond

VG • H/SI1 • GIA 7556752755

Certificate GIA 7556752755

Diamond specifications and retailer prices

From $5,078 SGD
As of November 5, 2026
Save $3,955 SGD (44%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $9,033 SGD at Helzberg Diamonds · As of November 4, 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 H colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 7556752755. Listed at 15 retailers as of November 4, 2026, with prices from $5,078 to $9,033, a $3,955 spread on the same certified stone. Helzberg Diamonds lists it at $9,033. 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
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40.35°
Pavilion angle40.4°
OriginNatural
Grading LabGIA
CertificateGIA 7556752755
Dimensions10.12 × 5.47 × 3.60 mm
L/W Ratio1.85
Culet sizeNone
Top View
10.12 mm5.47 mm1.20 ctH / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7556752755
Side View
Table 59.0%Crown 40.35°Girdle: VTN-VTKPavilion 40.4°Culet: NoneDepth 65.7%

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 5
Current: $9,033 SGD|Low: $5,078 SGD|High: $9,597 SGD|Avg: $6,631 SGD|-5.9%
Helzberg Diamonds
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 12$5,078 SGD
Retailer 5$5,161 SGD
Retailer 9$5,219 SGD
Retailer 2$5,269 SGD
Retailer 6$5,449 SGD
Retailer 4$5,501 SGD
Retailer 7$5,680 SGD
Retailer 14$6,363 SGD
Retailer 3$6,391 SGD
Retailer 11$6,496 SGD
Retailer 8$6,992 SGD
Retailer 10$8,501 SGD
Retailer 13$8,983 SGD
Helzberg Diamonds$9,033 SGD

29 data points across 14 retailers

15 retailers$5,078 SGD to $9,033 SGD

B+
Cheapest Retailer
-
$5,078 SGD
B+
Retailer 2
-
$5,161 SGD
View
B+
Retailer 3
-
$5,219 SGD
View
B+
Retailer 4
-
$5,269 SGD
View
B
Retailer 5
-
$5,449 SGD
View
B+
Retailer 6
-
$5,501 SGD
View
B+
Retailer 7
-
$5,680 SGD
View
B
Retailer 8
-
$6,363 SGD
View
B
Retailer 9
-
$6,391 SGD
View
B
Retailer 10
-
$6,496 SGD
View
B
Retailer 11
-
$6,810 SGD
View
B
Retailer 12
-
$6,992 SGD
View
B
Retailer 13
-
$8,501 SGD
View
B
Retailer 14
-
$8,983 SGD
View
Most Expensive
B
Helzberg Diamonds
XZRNLLMNLINLL · Nov 4
$9,033 SGD
$7,048 USD
View
14 more retailers have this diamond
Prices start from $5,078 SGDSave up to $3,955 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 Marquise
$5,078 SGD