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Marquise|Natural|GIA

1.00ct J SI1 Marquise Natural Diamond

EX • J/SI1 • GIA 6555512678

Certificate GIA 6555512678

Diamond specifications and retailer prices

From $2,905 CAD
As of November 4, 2026
Save $4,218 CAD (59%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $7,123 CAD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1ct natural marquise diamond

This 1ct 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 6555512678. Listed at 18 retailers as of November 4, 2026, with prices from $2,905 to $7,123, a $4,218 spread on the same certified stone. NZ Jewellers lists it at $7,123. 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

1.00
Carat
J
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37°
OriginNatural
Grading LabGIA
CertificateGIA 6555512678
Dimensions9.77 × 5.25 × 3.39 mm
L/W Ratio1.86
Culet sizeNone
Key to symbols
Feather, Crystal, Pinpoint, Knot
Top View
9.77 mm5.25 mm1.00 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6555512678
Side View
Table 61.0%Crown 37°Girdle: STK-VTKPavilionCulet: NDepth 64.6%

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: $7,123 CAD|Low: $2,905 CAD|High: $7,251 CAD|Avg: $3,926 CAD|-1.8%
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
Retailer 16
Retailer 17
November 6, 2026
Retailer 9$2,905 CAD
Retailer 4$3,078 CAD
Retailer 5$3,144 CAD
Retailer 2$3,304 CAD
Retailer 14$3,387 CAD
Retailer 7$3,408 CAD
Retailer 17$3,408 CAD
Retailer 6$3,564 CAD
Retailer 3$3,602 CAD
Retailer 11$3,605 CAD
Retailer 16$3,695 CAD
Retailer 8$3,701 CAD
Retailer 15$3,931 CAD
Retailer 10$4,158 CAD
Retailer 13$4,236 CAD
Retailer 12$5,952 CAD
NZ Jewellers$7,123 CAD

27 data points across 17 retailers

18 retailers$2,905 CAD to $7,123 CAD

B+
Cheapest Retailer
-
$2,905 CAD
B+
Retailer 2
-
$3,078 CAD
View
B+
Retailer 3
-
$3,144 CAD
View
Final sale: no returns
B+
Retailer 4
-
$3,304 CAD
View
B+
Retailer 5
-
$3,387 CAD
View
B+
Retailer 6
-
$3,408 CAD
View
Retailer 7
-
$3,408 CAD
View
Price last confirmed 8 days ago
B+
Retailer 8
-
$3,564 CAD
View
B+
Retailer 9
-
$3,602 CAD
View
B+
Retailer 10
-
$3,605 CAD
View
B
Retailer 11
-
$3,695 CAD
View
B
Retailer 12
-
$3,701 CAD
View
B+
Retailer 13
-
$3,931 CAD
View
B
Retailer 14
-
$4,158 CAD
View
B
Retailer 15
-
$4,236 CAD
View
Retailer 16
-
$4,434 CAD
View
Price last confirmed 30 days ago
B
Retailer 17
-
$5,952 CAD
View
Most Expensive
B
NZ Jewellers
71be0534-a66f-4f59-9929-7973de153c9d · Nov 5
$7,123 CAD
$5,100 USD
View
17 more retailers have this diamond
Prices start from $2,905 CADSave up to $4,218 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+
1.00ct Marquise
$2,905 CAD