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Marquise|Natural|GIA

1.20ct H SI1 Marquise Natural Diamond

VG • H/SI1 • GIA 7558189177

Certificate GIA 7558189177

Diamond specifications and retailer prices

From $4,768 CAD
As of November 4, 2026
Save $3,777 CAD (44%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $8,545 CAD 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 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 7558189177. Listed at 15 retailers as of November 4, 2026, with prices from $4,768 to $8,545, a $3,777 spread on the same certified stone. Helzberg Diamonds lists it at $8,545. 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
Color
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle39.96°
Pavilion angle40.45°
OriginNatural
Grading LabGIA
CertificateGIA 7558189177
Dimensions10.13 × 5.47 × 3.52 mm
L/W Ratio1.85
Culet sizeNone
Top View
10.13 mm5.47 mm1.20 ctH / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 7558189177
Side View
Table 61.0%Crown 39.96°Girdle: MED-VTKPavilion 40.45°Culet: NoneDepth 64.4%

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: $8,545 CAD|Low: $4,768 CAD|High: $9,078 CAD|Avg: $6,335 CAD|-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 6, 2026
Retailer 11$4,768 CAD
Retailer 13$4,846 CAD
Retailer 10$4,984 CAD
Retailer 9$5,096 CAD
Retailer 5$5,204 CAD
Retailer 6$5,444 CAD
Retailer 8$5,472 CAD
Retailer 3$6,065 CAD
Retailer 4$6,134 CAD
Retailer 7$6,341 CAD
Retailer 2$6,615 CAD
Retailer 12$8,042 CAD
Retailer 14$8,538 CAD
Helzberg Diamonds$8,545 CAD

28 data points across 14 retailers

15 retailers$4,768 CAD to $8,545 CAD

B+
Cheapest Retailer
-
$4,768 CAD
B+
Retailer 2
-
$4,846 CAD
View
B+
Retailer 3
-
$4,984 CAD
View
B+
Retailer 4
-
$5,096 CAD
View
B+
Retailer 5
-
$5,204 CAD
View
B+
Retailer 6
-
$5,444 CAD
View
B+
Retailer 7
-
$5,472 CAD
View
B+
Retailer 8
-
$6,065 CAD
View
B+
Retailer 9
-
$6,134 CAD
View
B+
Retailer 10
-
$6,341 CAD
View
B
Retailer 11
-
$6,615 CAD
View
B
Retailer 12
-
$6,935 CAD
View
B
Retailer 13
-
$8,042 CAD
View
B
Retailer 14
-
$8,538 CAD
View
Most Expensive
B
Helzberg Diamonds
XZRNLLOHOPHNN · Nov 6
$8,545 CAD
$6,075 USD
View
14 more retailers have this diamond
Prices start from $4,768 CADSave up to $3,777 CAD

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
$4,768 CAD