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Marquise|Natural|GIA

1.30ct E SI1 Marquise Natural Diamond

EX • E/SI1 • GIA 6551891799

Certificate GIA 6551891799

Diamond specifications and retailer prices

From $8,750 CAD
As of November 1, 2026
Save $6,875 CAD (44%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $18,804 CAD at NZ Jewellers · As of September 25, 2026
View at NZ Jewellers

About this 1.3ct natural marquise diamond

This 1.3ct natural marquise sits in the one-and-a-quarter to one-and-a-half 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 6551891799. Listed at 13 retailers as of November 1, 2026, with a 79% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

1.30
Carat
E
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6551891799
Dimensions10.88 × 5.73 × 3.66 mm
L/W Ratio1.90
Girdle conditionFaceted
Culet sizeNone
Top View
10.88 mm5.73 mm1.30 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 6551891799
Side View
Table 63.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 63.9%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $11,561 CAD|Low: $8,750 CAD|High: $15,856 CAD|Avg: $11,838 CAD|-3.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 7$8,750 CAD
Retailer 3$10,500 CAD
Retailer 6$10,772 CAD
Retailer 8$11,257 CAD
Retailer 9$11,257 CAD
Retailer 1$11,561 CAD
Retailer 10$11,634 CAD
Retailer 2$12,385 CAD
Retailer 4$13,716 CAD
Retailer 5$15,625 CAD

32 data points across 10 retailers

13 retailers$8,750 CAD to $15,625 CAD

A
Cheapest Retailer
-
$8,750 CAD
Retailer 2
-
$10,185 CAD
View
Price last confirmed 45 days ago
B+
Retailer 3
-
$10,500 CAD
View
Retailer 4
-
$10,772 CAD
View
Price last confirmed 15 days ago
B+
Retailer 5
-
$11,257 CAD
View
B+
Retailer 6
-
$11,257 CAD
View
B+
Retailer 7
-
$11,561 CAD
View
B+
Retailer 8
-
$11,634 CAD
View
Retailer 9
-
$11,752 CAD
View
Price last confirmed 43 days ago
Retailer 10
-
$12,385 CAD
View
Price last confirmed 14 days ago
B+
Retailer 11
-
$13,716 CAD
View
B
Retailer 12
-
$15,625 CAD
View
Most Expensive
NZ Jewellers
c10a64fd-b190-4958-b15c-cc64b9bcd4a7 · Sep 25
$18,804 CAD
$13,464 USD
View
Price last confirmed 41 days ago
12 more retailers have this diamond
Prices start from $8,750 CADSave up to $6,875 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.

A
1.30ct Marquise
$8,750 CAD