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Marquise|Natural|GIA

1.51ct J SI1 Marquise Natural Diamond

ID • J/SI1 • GIA 6545855164

Certificate GIA 6545855164

Diamond specifications and retailer prices

From $8,133 CAD
$5,820 USD
As of November 1, 2026
Save $6,491 CAD (44%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $14,624 CAD at NZ Jewellers · As of October 30, 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 J 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 6545855164. Listed at 8 retailers as of October 30, 2026, with prices from $8,133 to $14,624, a $6,491 spread on the same certified stone. NZ Jewellers lists it at $14,624. 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
J
Color
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceMedium
Crown angle41.63°
Pavilion angle40.51°
OriginNatural
Grading LabGIA
CertificateGIA 6545855164
Dimensions10.29 × 5.82 × 4.01 mm
L/W Ratio1.77
Girdle conditionExtremely Thick
Key to symbols
Twinning Wisp, Feather, Crystal, Cavity, Needle, Indented Natural
Top View
10.29 mm5.82 mm1.51 ctJ / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceMedium
CertificateGIA 6545855164
Side View
Table 58.0%Crown 41.63°Girdle: Very ThickPavilion 40.51°Culet: NoneDepth 68.9%

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: $14,624 CAD|Low: $6,952 CAD|High: $14,624 CAD|Avg: $8,881 CAD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 2, 2026
Retailer 7$6,952 CAD
Retailer 9$7,704 CAD
Retailer 6$8,133 CAD
Retailer 3$8,412 CAD
Retailer 8$8,669 CAD
Retailer 2$8,744 CAD
Retailer 5$8,744 CAD
Retailer 10$9,041 CAD
Retailer 4$12,881 CAD
NZ Jewellers$14,624 CAD

8 data points across 10 retailers

8 retailers$8,133 CAD to $14,624 CAD

Retailer 1
-
$6,952 CAD
$4,975 USD
Price last confirmed 12 days ago
B+
Retailer 2
-
$8,133 CAD
$5,820 USD
View
B+
Retailer 3
-
$8,412 CAD
£4,740 GBP
View
Retailer 4
-
$8,669 CAD
$6,204 USD
View
Price last confirmed 11 days ago
B+
Retailer 5
-
$8,744 CAD
$6,257 USD
View
B+
Retailer 6
-
$8,744 CAD
$6,257 USD
View
B
Retailer 7
-
$12,881 CAD
£7,258 GBP
View
Most Expensive
B
NZ Jewellers
0c44c79a-0461-465a-82d3-82391f0c0c93 · Oct 30
$14,624 CAD
$10,465 USD
View
7 more retailers have this diamond
Prices start from $8,133 CADSave up to $6,491 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
$8,133 CAD