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Marquise|Natural|GIA

1.50ct I SI1 Marquise Natural Diamond

EX • I/SI1 • GIA 2564661078

Certificate GIA 2564661078

Diamond specifications and retailer prices

From $10,279 CAD
As of November 6, 2026
Save $12,741 CAD (55%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $23,020 CAD at NZ Jewellers · As of November 7, 2026
View at NZ Jewellers

About this 1.5ct natural marquise diamond

This 1.5ct natural marquise sits in the one-and-a-half to two carat band, graded I 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 2564661078. Listed at 12 retailers as of November 6, 2026, with prices from $10,279 to $23,020, a $12,741 spread on the same certified stone. NZ Jewellers lists it at $23,020. 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

1.50
Carat
I
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2564661078
Dimensions11.37 × 5.98 × 3.83 mm
L/W Ratio1.90
Girdle conditionThick to Very Thick
Key to symbols
Twinning Wisp, Crystal, Feather, Indented Natural
Top View
11.37 mm5.98 mm1.50 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2564661078
Side View
Table 61.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 64.0%

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: $23,020 CAD|Low: $10,279 CAD|High: $23,599 CAD|Avg: $13,737 CAD|-2.4%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 7, 2026
Retailer 3$10,279 CAD
Retailer 2$10,452 CAD
Retailer 11$10,860 CAD
Retailer 4$11,153 CAD
Retailer 12$12,201 CAD
Retailer 6$13,074 CAD
Retailer 8$13,651 CAD
Retailer 10$13,764 CAD
Retailer 9$13,976 CAD
Retailer 5$16,838 CAD
Retailer 7$19,079 CAD
NZ Jewellers$23,020 CAD

16 data points across 12 retailers

12 retailers$10,279 CAD to $23,020 CAD

B+
Cheapest Retailer
-
$10,279 CAD
B+
Retailer 2
-
$10,452 CAD
View
B+
Retailer 3
-
$10,860 CAD
View
B+
Retailer 4
-
$11,153 CAD
View
Final sale: no returns
B+
Retailer 5
-
$12,201 CAD
View
B
Retailer 6
-
$13,074 CAD
View
B+
Retailer 7
-
$13,651 CAD
View
B+
Retailer 8
-
$13,764 CAD
View
B
Retailer 9
-
$13,976 CAD
View
B
Retailer 10
-
$16,838 CAD
View
B
Retailer 11
-
$19,079 CAD
View
Most Expensive
B
NZ Jewellers
7db7de9f-8eef-4587-93a5-3f82ce5dc6d7 · Nov 7
$23,020 CAD
$16,366 USD
View
11 more retailers have this diamond
Prices start from $10,279 CADSave up to $12,741 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+
1.50ct Marquise
$10,279 CAD