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Marquise|Natural|GIA

1.51ct D SI1 Marquise Natural Diamond

ID • D/SI1 • GIA 1545041696

Certificate GIA 1545041696

Diamond specifications and retailer prices

From $18,887 CAD
$13,521 USD
As of October 30, 2026
Save $13,200 CAD (41%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $32,087 CAD at MOH London · As of November 1, 2026
View at MOH London

About this 1.51ct natural marquise diamond

This 1.51ct 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 1545041696. Listed at 14 retailers as of October 30, 2026, with prices from $18,887 to $32,087, a $13,200 spread on the same certified stone. MOH London lists it at $32,087. 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

1.51
Carat
D
Color
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Pavilion angle42.1°
OriginNatural
Grading LabGIA
CertificateGIA 1545041696
Dimensions12.16 × 5.93 × 3.78 mm
L/W Ratio2.05
Girdle conditionFaceted
Top View
12.16 mm5.93 mm1.51 ctD / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1545041696
Side View
Table 59.0%CrownGirdle: STK-THKPavilion 42.1°Culet: 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: Oct 30
Current: $32,087 CAD|Low: $17,122 CAD|High: $32,474 CAD|Avg: $24,047 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
November 1, 2026
Retailer 7$19,689 CAD
Retailer 8$20,150 CAD
Retailer 3$20,546 CAD
Retailer 2$21,458 CAD
Retailer 6$21,585 CAD
Retailer 9$21,915 CAD
Retailer 10$22,258 CAD
Retailer 5$24,930 CAD
Retailer 11$29,106 CAD
Retailer 4$30,184 CAD
MOH London$32,087 CAD

45 data points across 11 retailers

14 retailers$18,887 CAD to $32,087 CAD

B+
Cheapest Retailer
-
$18,887 CAD
$13,521 USD
B+
Retailer 2
-
$19,689 CAD
$14,095 USD
View
Final sale: no returns
B+
Retailer 3
-
$20,150 CAD
$14,425 USD
View
B+
Retailer 4
-
$20,546 CAD
$14,708 USD
View
B+
Retailer 5
-
$20,716 CAD
$14,830 USD
View
B+
Retailer 6
-
$21,458 CAD
£12,096 GBP
View
Retailer 7
-
$21,585 CAD
A$23,773 AUD
View
Price last confirmed 8 days ago
B
Retailer 8
-
$21,915 CAD
$15,688 USD
View
B
Retailer 9
-
$22,258 CAD
$15,934 USD
View
B
Retailer 10
-
$23,113 CAD
$16,546 USD
View
B
Retailer 11
-
$24,930 CAD
€16,997 EUR
View
B
Retailer 12
-
$29,106 CAD
$20,836 USD
View
B
Retailer 13
-
$30,184 CAD
ZAR 349,082 ZAR
View
Most Expensive
B
MOH London
95D10177E · Nov 1
$32,087 CAD
£18,087 GBP
View
13 more retailers have this diamond
Prices start from $18,887 CADSave up to $13,200 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+
1.51ct Marquise
$18,887 CAD