Marquise|Natural|GIA

1.51ct I SI2 Marquise Natural Diamond

EX • I/SI2 • GIA 1567270754

Certificate GIA 1567270754

Diamond specifications and retailer prices

From $8,789 CAD
$6,292 USD
As of November 2, 2026
Save $2,971 CAD (25%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $19,990 CAD at NZ Jewellers · As of October 11, 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 I colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1567270754. Listed at 14 retailers as of November 2, 2026, with a 34% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
I
Color
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 1567270754
Dimensions11.45 × 6.01 × 3.57 mm
L/W Ratio1.91
Key to symbols
Crystal, Feather, Cloud, Needle, Indented Natural
Top View
11.45 mm6.01 mm1.51 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 1567270754
Side View
Table 58.0%CrownGirdle: THK-ETKPavilionCulet: NoneDepth 59.4%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: $19,990 CAD|Low: $8,133 CAD|High: $19,990 CAD|Avg: $12,137 CAD|+6.7%
NZ Jewellers
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
Retailer 15
November 2, 2026
Retailer 8$8,789 CAD
Retailer 9$8,907 CAD
Retailer 10$9,470 CAD
Retailer 6$9,558 CAD
Retailer 5$10,114 CAD
Retailer 4$10,330 CAD
Retailer 14$11,033 CAD
Retailer 7$11,378 CAD
Retailer 2$11,760 CAD
Retailer 11$11,807 CAD
Retailer 3$11,952 CAD
Retailer 12$13,006 CAD
Retailer 13$13,790 CAD
Retailer 15$16,857 CAD
NZ Jewellers$19,990 CAD

41 data points across 15 retailers

14 retailers$8,789 CAD to $11,760 CAD

A
Cheapest Retailer
-
$8,789 CAD
$6,292 USD
A
Retailer 2
-
$8,907 CAD
$6,376 USD
View
A
Retailer 3
-
$8,936 CAD
A$9,842 AUD
View
A
Retailer 4
-
$9,470 CAD
$6,779 USD
View
Retailer 5
-
$10,114 CAD
$7,240 USD
View
Price last confirmed 20 days ago
Retailer 6
-
$10,330 CAD
$7,395 USD
View
Price last confirmed 21 days ago
Retailer 7
-
$11,033 CAD
$7,898 USD
View
Price last confirmed 21 days ago
Retailer 8
-
$11,378 CAD
$8,145 USD
View
Price last confirmed 32 days ago
B
Retailer 9
-
$11,760 CAD
£6,629 GBP
View
Retailer 10
-
$11,807 CAD
£6,655 GBP
View
Price last confirmed 20 days ago
Retailer 11
-
$11,952 CAD
$8,556 USD
View
Price last confirmed 23 days ago
Retailer 12
-
$13,790 CAD
$9,872 USD
View
Price last confirmed 21 days ago
Retailer 13
-
$16,857 CAD
£9,502 GBP
View
Price last confirmed 22 days ago
Most Expensive
NZ Jewellers
d63f619d-cfbf-47ba-ad25-460cd66cf1bb · Oct 11
$19,990 CAD
$14,310 USD
View
Price last confirmed 21 days ago
13 more retailers have this diamond
Prices start from $8,789 CADSave up to $2,971 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.

A
1.51ct Marquise
$8,789 CAD