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Marquise|Natural|GIA

1.51ct H SI1 Marquise Natural Diamond

H/SI1 • GIA 6565358396

Certificate GIA 6565358396

Diamond specifications and retailer prices

From $10,142 CAD
As of November 2, 2026
Save $7,863 CAD (44%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $18,004 CAD at NZ Jewellers · As of November 3, 2026
View at NZ Jewellers

About this 1.51ct natural marquise diamond

This 1.51ct natural marquise sits in the one-and-a-half to two carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included) and certified by GIA 6565358396. Listed at 7 retailers as of November 2, 2026, with prices from $10,142 to $18,004, a $7,863 spread on the same certified stone. NZ Jewellers lists it at $18,004. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.51
Carat
H
Color
SI1
Clarity
-
Cut

Specifications

Cut
PolishExcellent
SymmetryVery Good
FluorescenceStrong
Crown angle40°
Pavilion angle37.72°
OriginNatural
Grading LabGIA
CertificateGIA 6565358396
Dimensions10.92 × 5.97 × 3.71 mm
L/W Ratio1.83
Girdle conditionExtremely Thick
Key to symbols
Crystal, Feather, Cavity, Needle, Natural
Top View
10.92 mm5.97 mm1.51 ctH / SI1
OriginNatural
PolishExcellent
SymmetryVery Good
FluorescenceStrong
CertificateGIA 6565358396
Side View
Table 56.0%Crown 40°GirdlePavilion 37.72°CuletDepth 62.1%

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 2
Current: $18,004 CAD|Low: $9,832 CAD|High: $19,089 CAD|Avg: $12,883 CAD|-5.7%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 2, 2026
Retailer 2$10,142 CAD
Retailer 4$10,282 CAD
Retailer 7$10,697 CAD
Retailer 6$10,765 CAD
Retailer 5$10,931 CAD
Retailer 3$15,001 CAD
NZ Jewellers$18,004 CAD

37 data points across 7 retailers

7 retailers$10,142 CAD to $18,004 CAD

B+
Cheapest Retailer
-
$10,142 CAD
B+
Retailer 2
-
$10,282 CAD
View
Retailer 3
-
$10,697 CAD
View
Price last confirmed 15 days ago
B+
Retailer 4
-
$10,765 CAD
View
B+
Retailer 5
-
$10,931 CAD
View
B
Retailer 6
-
$15,001 CAD
View
Most Expensive
C
NZ Jewellers
2ad8eb61-efa7-48b6-8ea3-d62b9172fbfc · Nov 3
$18,004 CAD
$12,800 USD
View
6 more retailers have this diamond
Prices start from $10,142 CADSave up to $7,863 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
$10,142 CAD