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Marquise|Natural|GIA

1.50ct D SI1 Marquise Natural Diamond

ID • D/SI1 • GIA 1549494456

Certificate GIA 1549494456

Diamond specifications and retailer prices

From $16,256 CAD
As of November 6, 2026
Save $11,772 CAD (42%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $28,028 CAD at MOH London · As of November 4, 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 D 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 1549494456. Listed at 14 retailers as of November 4, 2026, with prices from $16,256 to $28,028, a $11,772 spread on the same certified stone. MOH London lists it at $28,028. 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
D
Color
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 1549494456
Dimensions11.44 × 5.88 × 3.74 mm
L/W Ratio1.95
Girdle conditionFaceted
Culet sizeNone
Cert comments
Pinpoints are not shown.
Top View
11.44 mm5.88 mm1.50 ctD / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 1549494456
Side View
Table 57.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 63.6%

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: $28,028 CAD|Low: $16,256 CAD|High: $28,443 CAD|Avg: $20,887 CAD|-0.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 6$16,256 CAD
Retailer 4$17,244 CAD
Retailer 5$19,194 CAD
Retailer 3$19,207 CAD
Retailer 8$19,494 CAD
Retailer 10$20,244 CAD
Retailer 9$20,380 CAD
Retailer 2$22,545 CAD
Retailer 7$25,492 CAD
MOH London$28,028 CAD

44 data points across 10 retailers

14 retailers$16,256 CAD to $28,028 CAD

B+
Cheapest Retailer
-
$16,256 CAD
B+
Retailer 2
-
$16,861 CAD
View
B+
Retailer 3
-
$17,118 CAD
View
B+
Retailer 4
-
$17,244 CAD
View
Final sale: no returns
B+
Retailer 5
-
$17,395 CAD
View
B+
Retailer 6
-
$19,194 CAD
View
B+
Retailer 7
-
$19,207 CAD
View
B+
Retailer 8
-
$19,494 CAD
View
B+
Retailer 9
-
$20,244 CAD
View
B
Retailer 10
-
$20,380 CAD
View
B
Retailer 11
-
$21,323 CAD
View
B
Retailer 12
-
$22,545 CAD
View
B
Retailer 13
-
$25,492 CAD
View
Most Expensive
B
MOH London
4652BB7B6 · Nov 4
$28,028 CAD
£15,690 GBP
View
13 more retailers have this diamond
Prices start from $16,256 CADSave up to $11,772 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
$16,256 CAD