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Marquise|Natural|GIA

1.00ct E SI1 Marquise Natural Diamond

EX • E/SI1 • GIA 6551185021

Certificate GIA 6551185021

Diamond specifications and retailer prices

From $5,350 CAD
As of November 5, 2026
Save $6,579 CAD (55%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $11,930 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 E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6551185021. Listed at 21 retailers as of November 5, 2026, with prices from $5,350 to $11,930, a $6,579 spread on the same certified stone. NZ Jewellers lists it at $11,930. 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
E
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6551185021
Dimensions10.31 × 5.06 × 3.18 mm
L/W Ratio2.04
Girdle conditionFaceted
Culet sizeNone
Top View
10.31 mm5.06 mm1.00 ctE / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceFaint
CertificateGIA 6551185021
Side View
Table 56.0%CrownGirdle: VTK-ETKPavilionCulet: NoneDepth 62.8%

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: $11,930 CAD|Low: $5,459 CAD|High: $11,930 CAD|Avg: $7,449 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
November 6, 2026
Retailer 9$5,459 CAD
Retailer 12$5,827 CAD
Retailer 4$5,856 CAD
Retailer 11$5,880 CAD
Retailer 3$6,204 CAD
Retailer 13$6,204 CAD
Retailer 2$6,701 CAD
Retailer 5$6,757 CAD
Retailer 10$6,902 CAD
Retailer 8$7,716 CAD
Retailer 6$8,354 CAD
Retailer 7$10,875 CAD
NZ Jewellers$11,930 CAD

46 data points across 13 retailers

21 retailers$5,350 CAD to $11,930 CAD

B+
Cheapest Retailer
-
$5,350 CAD
B+
Retailer 2
-
$5,459 CAD
View
B+
Retailer 3
-
$5,662 CAD
View
B+
Retailer 4
-
$5,827 CAD
View
B+
Retailer 5
-
$5,856 CAD
View
B+
Retailer 6
-
$5,880 CAD
View
Retailer 7
-
$6,204 CAD
View
Price last confirmed 8 days ago
B
Retailer 8
-
$6,204 CAD
View
B
Retailer 9
-
$6,204 CAD
View
B+
Retailer 10
-
$6,701 CAD
View
B
Retailer 11
-
$6,757 CAD
View
Retailer 12
-
$6,902 CAD
View
Price last confirmed 28 days ago
B
Retailer 13
-
$6,969 CAD
View
B
Retailer 14
-
$6,969 CAD
View
B
Retailer 15
-
$7,158 CAD
View
B
Retailer 16
-
$7,206 CAD
View
Retailer 17
-
$7,561 CAD
View
Price last confirmed 14 days ago
B
Retailer 18
-
$7,716 CAD
View
B
Retailer 19
-
$8,354 CAD
View
B
Retailer 20
-
$10,875 CAD
View
Most Expensive
B
NZ Jewellers
f3e8fe6d-4665-4962-b68a-9e5acc960959 · Nov 5
$11,930 CAD
$8,542 USD
View
20 more retailers have this diamond
Prices start from $5,350 CADSave up to $6,579 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
$5,350 CAD