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Marquise|Natural|GIA

0.50ct H SI1 Marquise Natural Diamond

EX • H/SI1 • GIA 2554995250

Certificate GIA 2554995250

Diamond specifications and retailer prices

From $822 CAD
HK$4,600 HKD
As of October 30, 2026
Save $1,429 CAD (63%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $3,041 CAD at NZ Jewellers · As of October 27, 2026
View at NZ Jewellers

About this 0.5ct natural marquise diamond

This 0.5ct natural marquise sits in the half to three-quarter carat band, graded H 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 2554995250. Listed at 20 retailers as of October 29, 2026, with a 174% 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

0.50
Carat
H
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryGood
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 2554995250
Dimensions8.03 × 4.05 × 2.62 mm
L/W Ratio1.98
Key to symbols
Feather, Crystal
Top View
8.03 mm4.05 mm0.50 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryGood
FluorescenceFaint
CertificateGIA 2554995250
Side View
Table 57.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 64.6%

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: Oct 30
Current: $3,041 CAD|Low: $787 CAD|High: $3,041 CAD|Avg: $1,278 CAD|+3.6%
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
Retailer 16
Retailer 17
Retailer 18
Retailer 19
October 30, 2026
Retailer 3$822 CAD
Retailer 6$894 CAD
Retailer 17$969 CAD
Retailer 19$969 CAD
Retailer 7$978 CAD
Retailer 18$1,007 CAD
Retailer 10$1,008 CAD
Retailer 5$1,119 CAD
Retailer 16$1,119 CAD
Retailer 8$1,133 CAD
Retailer 9$1,154 CAD
Retailer 12$1,194 CAD
Retailer 13$1,197 CAD
Retailer 4$1,222 CAD
Retailer 15$1,377 CAD
Retailer 2$1,497 CAD
Retailer 11$1,509 CAD
Retailer 14$2,251 CAD
NZ Jewellers$3,041 CAD

26 data points across 19 retailers

20 retailers$822 CAD to $2,251 CAD

A
Cheapest Retailer
-
$822 CAD
HK$4,600 HKD
B+
Retailer 2
-
$894 CAD
$640 USD
View
Final sale: no returns
B+
Retailer 3
-
$969 CAD
$694 USD
View
B+
Retailer 4
-
$969 CAD
$694 USD
View
B+
Retailer 5
-
$978 CAD
$700 USD
View
B+
Retailer 6
-
$1,007 CAD
$721 USD
View
B+
Retailer 7
-
$1,008 CAD
SGD 975 SGD
View
B+
Retailer 8
-
$1,119 CAD
$801 USD
View
Retailer 9
-
$1,119 CAD
$801 USD
View
Price last confirmed 14 days ago
B+
Retailer 10
-
$1,133 CAD
$811 USD
View
B
Retailer 11
-
$1,154 CAD
$826 USD
View
B
Retailer 12
-
$1,194 CAD
£673 GBP
View
B
Retailer 13
-
$1,197 CAD
£675 GBP
View
B
Retailer 14
-
$1,222 CAD
$875 USD
View
Retailer 15
-
$1,298 CAD
£731 GBP
View
Price last confirmed 39 days ago
B
Retailer 16
-
$1,377 CAD
€939 EUR
View
B
Retailer 17
-
$1,497 CAD
ZAR 17,309 ZAR
View
Retailer 18
-
$1,509 CAD
A$1,662 AUD
View
Price last confirmed 28 days ago
C
Retailer 19
-
$2,251 CAD
£1,269 GBP
View
Most Expensive
NZ Jewellers
68b04a57-1884-4203-9656-3c71befe0aef · Oct 27
$3,041 CAD
$2,177 USD
View
Price under review
19 more retailers have this diamond
Prices start from $822 CADSave up to $1,429 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
0.50ct Marquise
$822 CAD