Marquise|Natural|GIA

1.50ct H SI1 Marquise Natural Diamond

GD • H/SI1 • GIA 1558770144

Certificate GIA 1558770144

Diamond specifications and retailer prices

From $13,187 CAD
$9,440 USD
As of November 2, 2026
11 retailers carry this diamond
Most expensive: $16,094 CAD at Helzberg Diamonds · As of October 20, 2026
View at Helzberg Diamonds

About this 1.5ct natural marquise diamond

This 1.5ct natural marquise sits in the one-and-a-half to two carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 1558770144. Listed at 11 retailers as of November 2, 2026. 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

1.50
Carat
H
Color
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle43.97°
Pavilion angle40.41°
OriginNatural
Grading LabGIA
CertificateGIA 1558770144
Dimensions10.54 × 5.80 × 3.93 mm
L/W Ratio1.82
Culet sizeNone
Top View
10.54 mm5.80 mm1.50 ctH / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1558770144
Side View
Table 60.0%Crown 43.97°Girdle: THK-ETKPavilion 40.41°Culet: NoneDepth 67.8%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Nov 2
Current: $16,094 CAD|Low: $10,326 CAD|High: $18,505 CAD|Avg: $12,931 CAD|-4.0%
Helzberg Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
October 23, 2026
Retailer 5$10,326 CAD
Retailer 8$10,500 CAD
Retailer 9$10,913 CAD
Retailer 6$11,063 CAD
Retailer 4$11,220 CAD
Retailer 10$11,442 CAD
Retailer 12$12,788 CAD
Retailer 7$12,805 CAD
Retailer 13$12,902 CAD
Retailer 2$13,066 CAD
Retailer 3$13,098 CAD
Helzberg Diamonds$16,094 CAD
Retailer 11$17,773 CAD

31 data points across 13 retailers

11 retailers

Retailer 1
-
$10,326 CAD
SGD 9,989 SGD
Price last confirmed 21 days ago
Retailer 2
-
$10,500 CAD
$7,517 USD
View
Price last confirmed 12 days ago
Retailer 3
-
$10,913 CAD
$7,812 USD
View
Price last confirmed 12 days ago
Retailer 4
-
$11,063 CAD
$7,920 USD
View
Price last confirmed 10 days ago
Retailer 5
-
$11,442 CAD
£6,449 GBP
View
Price last confirmed 12 days ago
Retailer 6
-
$12,805 CAD
$9,167 USD
View
Price last confirmed 11 days ago
Retailer 7
-
$12,902 CAD
$9,236 USD
View
Price last confirmed 13 days ago
Retailer 8
-
$13,066 CAD
€8,908 EUR
View
Price last confirmed 10 days ago
Retailer 9
-
$13,098 CAD
$9,376 USD
View
Price last confirmed 13 days ago
B
Retailer 10
-
$13,187 CAD
$9,440 USD
View
Most Expensive
Helzberg Diamonds
XZRHLLONNGHKK · Oct 20
$16,094 CAD
$11,521 USD
View
Price last confirmed 13 days ago
10 more retailers have this diamond
Prices start from $13,187 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
1.50ct Marquise
$13,187 CAD