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Marquise|Natural|GIA

1.51ct I SI1 Marquise Natural Diamond

EX • I/SI1 • GIA 5566372644

Certificate GIA 5566372644

Diamond specifications and retailer prices

From $9,047 CAD
HK$50,600 HKD
As of November 1, 2026
Save $11,079 CAD (55%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $20,127 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 I 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 5566372644. Listed at 11 retailers as of October 30, 2026, with prices from $9,047 to $20,127, a $11,079 spread on the same certified stone. NZ Jewellers lists it at $20,127. 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
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryExcellent
FluorescenceStrong
OriginNatural
Grading LabGIA
CertificateGIA 5566372644
Dimensions11.71 × 5.87 × 3.69 mm
L/W Ratio1.99
Girdle conditionMedium to Very Thick
Key to symbols
Crystal, Feather, Needle
Top View
11.71 mm5.87 mm1.51 ctI / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceStrong
CertificateGIA 5566372644
Side View
Table 60.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 62.8%

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 1
Current: $20,127 CAD|Low: $8,976 CAD|High: $21,568 CAD|Avg: $12,801 CAD|-6.7%
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$9,047 CAD
Retailer 4$9,205 CAD
Retailer 9$9,722 CAD
Retailer 8$10,639 CAD
Retailer 2$11,418 CAD
Retailer 3$11,925 CAD
Retailer 6$12,034 CAD
Retailer 10$12,393 CAD
Retailer 5$16,770 CAD
NZ Jewellers$20,127 CAD

35 data points across 10 retailers

11 retailers$9,047 CAD to $20,127 CAD

A
Cheapest Retailer
-
$9,047 CAD
HK$50,600 HKD
A
Retailer 2
-
$9,205 CAD
₹627,600 INR
View
B+
Retailer 3
-
$9,722 CAD
$6,960 USD
View
Final sale: no returns
B+
Retailer 4
-
$10,639 CAD
$7,616 USD
View
Retailer 5
-
$10,658 CAD
SGD 10,310 SGD
View
Price last confirmed 21 days ago
B+
Retailer 6
-
$11,418 CAD
£6,436 GBP
View
B+
Retailer 7
-
$11,925 CAD
£6,722 GBP
View
B
Retailer 8
-
$12,034 CAD
$8,615 USD
View
B
Retailer 9
-
$12,393 CAD
$8,872 USD
View
B
Retailer 10
-
$16,770 CAD
£9,453 GBP
View
Most Expensive
B
NZ Jewellers
c46d6811-9a3a-4d37-b07f-f337090d5828 · Oct 30
$20,127 CAD
$14,408 USD
View
10 more retailers have this diamond
Prices start from $9,047 CADSave up to $11,079 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
$9,047 CAD