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Marquise|Natural|GIA

1.00ct K SI1 Marquise Natural Diamond

EX • K/SI1 • GIA 1375003103

Certificate GIA 1375003103

Diamond specifications and retailer prices

From $3,060 CAD
As of November 6, 2026
Save $5,018 CAD (62%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $8,078 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 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 1375003103. Listed at 19 retailers as of November 5, 2026, with prices from $3,060 to $8,078, a $5,018 spread on the same certified stone. NZ Jewellers lists it at $8,078. 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
K
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 1375003103
Dimensions10.03 × 5.08 × 3.32 mm
L/W Ratio1.97
Culet sizeNone
Top View
10.03 mm5.08 mm1.00 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 1375003103
Side View
Table 56.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 65.3%

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 6
Current: $4,066 CAD|Low: $3,021 CAD|High: $6,852 CAD|Avg: $4,290 CAD|+2.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 6, 2026
Retailer 7$3,060 CAD
Retailer 5$3,471 CAD
Retailer 6$3,662 CAD
Retailer 8$4,039 CAD
Retailer 1$4,066 CAD
Retailer 4$4,505 CAD
Retailer 2$4,716 CAD
Retailer 3$6,751 CAD

44 data points across 8 retailers

19 retailers$3,060 CAD to $8,078 CAD

B+
Cheapest Retailer
-
$3,060 CAD
B+
Retailer 2
-
$3,147 CAD
View
B+
Retailer 3
-
$3,162 CAD
View
B+
Retailer 4
-
$3,302 CAD
View
B+
Retailer 5
-
$3,377 CAD
View
B
Retailer 6
-
$3,471 CAD
View
Retailer 7
-
$3,501 CAD
View
Price last confirmed 8 days ago
B
Retailer 8
-
$3,501 CAD
View
B
Retailer 9
-
$3,560 CAD
View
B
Retailer 10
-
$3,662 CAD
View
B
Retailer 11
-
$3,795 CAD
View
B
Retailer 12
-
$3,795 CAD
View
B
Retailer 13
-
$4,039 CAD
View
B+
Retailer 14
-
$4,066 CAD
View
B
Retailer 15
-
$4,505 CAD
View
B
Retailer 16
-
$4,716 CAD
View
B
Retailer 17
-
$5,565 CAD
View
B
Retailer 18
-
$6,751 CAD
View
Most Expensive
C
NZ Jewellers
d25ecab8-ce6f-41c4-a648-317ad859a575 · Nov 5
$8,078 CAD
$5,784 USD
View
18 more retailers have this diamond
Prices start from $3,060 CADSave up to $5,018 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
$3,060 CAD