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Marquise|Natural|GIA

1.51ct H SI2 Marquise Natural Diamond

EX • H/SI2 • GIA 1558832149

Certificate GIA 1558832149

Diamond specifications and retailer prices

From $8,760 CAD
SGD 8,474 SGD
As of November 1, 2026
Save $5,621 CAD (39%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $14,381 CAD at Helzberg Diamonds · As of November 2, 2026
View at Helzberg Diamonds

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 SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1558832149. Listed at 12 retailers as of November 1, 2026, with prices from $8,760 to $14,381, a $5,621 spread on the same certified stone. Helzberg Diamonds lists it at $14,381. 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
H
Color
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle39.29°
Pavilion angle40.19°
OriginNatural
Grading LabGIA
CertificateGIA 1558832149
Dimensions11.14 × 5.89 × 3.80 mm
L/W Ratio1.89
Culet sizeNone
Top View
11.14 mm5.89 mm1.51 ctH / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 1558832149
Side View
Table 60.0%Crown 39.29°Girdle: STK-VTKPavilion 40.19°Culet: NoneDepth 64.4%

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 1
Current: $14,381 CAD|Low: $8,760 CAD|High: $15,021 CAD|Avg: $10,900 CAD|-4.3%
Helzberg Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 2, 2026
Retailer 8$8,760 CAD
Retailer 4$8,942 CAD
Retailer 9$9,119 CAD
Retailer 10$9,270 CAD
Retailer 7$9,397 CAD
Retailer 5$9,667 CAD
Retailer 3$10,957 CAD
Retailer 11$11,034 CAD
Retailer 12$11,124 CAD
Retailer 2$11,162 CAD
Retailer 6$12,418 CAD
Helzberg Diamonds$14,381 CAD

32 data points across 12 retailers

12 retailers$8,760 CAD to $14,381 CAD

A
Cheapest Retailer
-
$8,760 CAD
SGD 8,474 SGD
A
Retailer 2
-
$8,942 CAD
$6,401 USD
View
A
Retailer 3
-
$9,119 CAD
SGD 8,822 SGD
View
A
Retailer 4
-
$9,270 CAD
$6,636 USD
View
A
Retailer 5
-
$9,397 CAD
$6,727 USD
View
A
Retailer 6
-
$9,667 CAD
£5,449 GBP
View
B+
Retailer 7
-
$10,957 CAD
$7,844 USD
View
B+
Retailer 8
-
$11,034 CAD
$7,899 USD
View
B+
Retailer 9
-
$11,124 CAD
$7,963 USD
View
B+
Retailer 10
-
$11,162 CAD
€7,610 EUR
View
B+
Retailer 11
-
$12,418 CAD
$8,890 USD
View
Most Expensive
B
Helzberg Diamonds
XZRHLLOOJIHKP · Nov 2
$14,381 CAD
$10,295 USD
View
11 more retailers have this diamond
Prices start from $8,760 CADSave up to $5,621 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
$8,760 CAD