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Marquise|Natural|GIA

1.20ct J SI1 Marquise Natural Diamond

EX • J/SI1 • GIA 6565379734

Certificate GIA 6565379734

Diamond specifications and retailer prices

From $4,709 CAD
$3,371 USD
As of October 31, 2026
Save $4,868 CAD (51%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $9,577 CAD at NZ Jewellers · As of October 30, 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 J colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6565379734. Listed at 15 retailers as of October 30, 2026, with prices from $4,709 to $9,577, a $4,868 spread on the same certified stone. NZ Jewellers lists it at $9,577. 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
J
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 6565379734
Dimensions10.33 × 5.62 × 3.42 mm
L/W Ratio1.84
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Feather, Crystal, Cavity, Knot, Needle
Top View
10.33 mm5.62 mm1.20 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceMedium
CertificateGIA 6565379734
Side View
Table 63.0%CrownGirdle: VTN-VTKPavilionCulet: NoneDepth 60.9%

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: Oct 31
Current: $9,577 CAD|Low: $4,709 CAD|High: $9,577 CAD|Avg: $5,976 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
Retailer 15
November 1, 2026
Retailer 7$4,709 CAD
Retailer 11$4,778 CAD
Retailer 12$4,923 CAD
Retailer 15$5,231 CAD
Retailer 4$5,375 CAD
Retailer 10$5,469 CAD
Retailer 13$5,469 CAD
Retailer 8$5,678 CAD
Retailer 3$5,685 CAD
Retailer 5$5,685 CAD
Retailer 6$5,881 CAD
Retailer 9$6,099 CAD
Retailer 14$8,021 CAD
Retailer 2$9,193 CAD
NZ Jewellers$9,577 CAD

30 data points across 15 retailers

15 retailers$4,709 CAD to $9,577 CAD

B+
Cheapest Retailer
-
$4,709 CAD
$3,371 USD
B+
Retailer 2
-
$4,778 CAD
View
B+
Retailer 3
-
$4,923 CAD
$3,524 USD
View
B
Retailer 4
-
$5,231 CAD
$3,745 USD
View
B
Retailer 5
-
$5,375 CAD
$3,848 USD
View
B
Retailer 6
-
$5,469 CAD
$3,915 USD
View
B
Retailer 7
-
$5,469 CAD
$3,915 USD
View
B
Retailer 8
-
$5,678 CAD
£3,200 GBP
View
B
Retailer 9
-
$5,685 CAD
$4,070 USD
View
B
Retailer 10
-
$5,685 CAD
$4,070 USD
View
B
Retailer 11
-
$5,881 CAD
$4,210 USD
View
B
Retailer 12
-
$6,099 CAD
€4,158 EUR
View
B
Retailer 13
-
$8,021 CAD
$5,742 USD
View
B
Retailer 14
-
$9,193 CAD
£5,182 GBP
View
Most Expensive
B
NZ Jewellers
617fe7ef-dabd-4410-8bcc-3b14343cc3c6 · Oct 30
$9,577 CAD
$6,856 USD
View
14 more retailers have this diamond
Prices start from $4,709 CADSave up to $4,868 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
$4,709 CAD