Marquise|Natural|GIA

1.20ct I SI1 Marquise Natural Diamond

VG • I/SI1 • GIA 1563074038

Certificate GIA 1563074038

Diamond specifications and retailer prices

From $5,161 CAD
As of November 4, 2026
Save $4,088 CAD (44%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $9,248 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 I 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 1563074038. Listed at 14 retailers as of November 4, 2026, with prices from $5,161 to $9,248, a $4,088 spread on the same certified stone. Helzberg Diamonds lists it at $9,248. 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
I
Color
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.82°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 1563074038
Dimensions10.56 × 5.39 × 3.53 mm
L/W Ratio1.96
Culet sizeNone
Top View
10.56 mm5.39 mm1.20 ctI / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1563074038
Side View
Table 58.0%Crown 39.82°Girdle: STK-VTKPavilion 41°Culet: NoneDepth 65.6%

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: $9,248 CAD|Low: $5,161 CAD|High: $9,828 CAD|Avg: $6,761 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$5,161 CAD
Retailer 13$5,242 CAD
Retailer 10$5,394 CAD
Retailer 6$5,406 CAD
Retailer 9$5,515 CAD
Retailer 5$5,632 CAD
Retailer 8$5,919 CAD
Retailer 3$6,538 CAD
Retailer 4$6,587 CAD
Retailer 7$6,634 CAD
Retailer 2$7,160 CAD
Retailer 12$8,704 CAD
Retailer 14$9,188 CAD
Helzberg Diamonds$9,248 CAD

25 data points across 14 retailers

14 retailers$5,161 CAD to $9,248 CAD

B+
Cheapest Retailer
-
$5,161 CAD
B+
Retailer 2
-
$5,242 CAD
View
B+
Retailer 3
-
$5,394 CAD
View
B+
Retailer 4
-
$5,406 CAD
View
B+
Retailer 5
-
$5,515 CAD
View
B+
Retailer 6
-
$5,632 CAD
View
B
Retailer 7
-
$5,919 CAD
View
B
Retailer 8
-
$6,538 CAD
View
B
Retailer 9
-
$6,587 CAD
View
B
Retailer 10
-
$6,634 CAD
View
B
Retailer 11
-
$7,160 CAD
View
B
Retailer 12
-
$8,704 CAD
View
B
Retailer 13
-
$9,188 CAD
View
Most Expensive
B
Helzberg Diamonds
XZRHLMJGNKGJO · Nov 6
$9,248 CAD
$6,575 USD
View
13 more retailers have this diamond
Prices start from $5,161 CADSave up to $4,088 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
$5,161 CAD