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Marquise|Natural|GIA

1.50ct I SI1 Marquise Natural Diamond

ID • I/SI1 • GIA 5553439824

Certificate GIA 5553439824

Diamond specifications and retailer prices

From $10,533 CAD
$7,540 USD
As of November 1, 2026
Save $7,767 CAD (42%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $18,299 CAD at MOH London · As of November 1, 2026
View at MOH London

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 5553439824. Listed at 15 retailers as of November 1, 2026, with prices from $10,533 to $18,299, a $7,767 spread on the same certified stone. MOH London lists it at $18,299. 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
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishVery Good
SymmetryVery Good
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 5553439824
Dimensions11.24 × 5.92 × 3.77 mm
L/W Ratio1.90
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Twinning Wisp, Feather, Indented Natural, Cavity, Natural, Extra Facet
Top View
11.24 mm5.92 mm1.50 ctI / SI1
OriginNatural
CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceMedium
CertificateGIA 5553439824
Side View
Table 61.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 63.7%

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 1
Current: $18,299 CAD|Low: $10,533 CAD|High: $18,521 CAD|Avg: $13,523 CAD|-0.1%
MOH London
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
November 1, 2026
Retailer 3$10,533 CAD
Retailer 13$11,464 CAD
Retailer 9$11,543 CAD
Retailer 10$12,203 CAD
Retailer 2$12,931 CAD
Retailer 8$13,142 CAD
Retailer 14$13,192 CAD
Retailer 11$13,611 CAD
Retailer 4$13,997 CAD
Retailer 6$13,997 CAD
Retailer 12$14,353 CAD
Retailer 5$14,458 CAD
Retailer 7$14,654 CAD
MOH London$18,299 CAD

30 data points across 14 retailers

15 retailers$10,533 CAD to $18,299 CAD

B+
Cheapest Retailer
-
$10,533 CAD
$7,540 USD
B+
Retailer 2
-
$11,464 CAD
$8,207 USD
View
B+
Retailer 3
-
$11,543 CAD
View
B
Retailer 4
-
$12,203 CAD
$8,736 USD
View
B
Retailer 5
-
$12,931 CAD
£7,289 GBP
View
B
Retailer 6
-
$13,035 CAD
View
B
Retailer 7
-
$13,142 CAD
$9,408 USD
View
B
Retailer 8
-
$13,192 CAD
$9,444 USD
View
B
Retailer 9
-
$13,611 CAD
$9,744 USD
View
B
Retailer 10
-
$13,997 CAD
$10,020 USD
View
B
Retailer 11
-
$13,997 CAD
$10,020 USD
View
B
Retailer 12
-
$14,353 CAD
$10,275 USD
View
B
Retailer 13
-
$14,458 CAD
$10,350 USD
View
B
Retailer 14
-
$14,654 CAD
€9,991 EUR
View
Most Expensive
B
MOH London
E5DF95E55 · Nov 1
$18,299 CAD
£10,315 GBP
View
14 more retailers have this diamond
Prices start from $10,533 CADSave up to $7,767 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
$10,533 CAD