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Marquise|Natural|GIA

1.20ct K SI1 Marquise Natural Diamond

EX • K/SI1 • GIA 6542456377

Certificate GIA 6542456377

Diamond specifications and retailer prices

From $3,933 CAD
As of November 5, 2026
Save $5,126 CAD (57%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $9,058 CAD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.2ct natural marquise diamond

This 1.2ct natural marquise sits in the classic one-carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6542456377. Listed at 20 retailers as of November 5, 2026, with prices from $3,933 to $9,058, a $5,126 spread on the same certified stone. NZ Jewellers lists it at $9,058. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.20
Carat
K
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
Crown angle38.23°
Pavilion angle39.12°
OriginNatural
Grading LabGIA
CertificateGIA 6542456377
Dimensions10.40 × 5.53 × 3.46 mm
L/W Ratio1.88
Girdle conditionVery Thick
Key to symbols
Feather, Crystal, Needle
Top View
10.40 mm5.53 mm1.20 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 6542456377
Side View
Table 60.0%Crown 38.23°Girdle: THK-VTKPavilion 39.12°Culet: NoneDepth 62.7%

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: $9,058 CAD|Low: $3,933 CAD|High: $9,058 CAD|Avg: $5,703 CAD
NZ Jewellers
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 8$3,933 CAD
Retailer 6$4,183 CAD
Retailer 12$4,260 CAD
Retailer 13$4,711 CAD
Retailer 14$4,711 CAD
Retailer 4$4,892 CAD
Retailer 2$5,045 CAD
Retailer 5$5,342 CAD
Retailer 7$5,349 CAD
Retailer 3$5,436 CAD
Retailer 11$6,061 CAD
Retailer 9$6,346 CAD
Retailer 10$8,673 CAD
NZ Jewellers$9,058 CAD

36 data points across 14 retailers

20 retailers$3,933 CAD to $9,058 CAD

B+
Cheapest Retailer
-
$3,933 CAD
B+
Retailer 2
-
$4,183 CAD
View
B+
Retailer 3
-
$4,260 CAD
View
B
Retailer 4
-
$4,390 CAD
View
B
Retailer 5
-
$4,546 CAD
View
B
Retailer 6
-
$4,711 CAD
View
Retailer 7
-
$4,711 CAD
View
Price last confirmed 8 days ago
B
Retailer 8
-
$4,727 CAD
View
B
Retailer 9
-
$4,862 CAD
View
B
Retailer 10
-
$4,892 CAD
View
B
Retailer 11
-
$5,045 CAD
View
B
Retailer 12
-
$5,342 CAD
View
Retailer 13
-
$5,342 CAD
View
Price last confirmed 28 days ago
B
Retailer 14
-
$5,349 CAD
View
B
Retailer 15
-
$5,436 CAD
View
Retailer 16
-
$5,888 CAD
View
Price last confirmed 22 days ago
B
Retailer 17
-
$6,061 CAD
View
B
Retailer 18
-
$6,346 CAD
View
B
Retailer 19
-
$8,673 CAD
View
Most Expensive
C
NZ Jewellers
11a171f1-1057-4f87-b4c5-efd38b187b1f · Nov 5
$9,058 CAD
$6,486 USD
View
19 more retailers have this diamond
Prices start from $3,933 CADSave up to $5,126 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
$3,933 CAD