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Marquise|Natural|GIA

0.50ct H SI2 Marquise Natural Diamond

EX • H/SI2 • GIA 1555995372

Certificate GIA 1555995372

Diamond specifications and retailer prices

From $731 AUD
HK$4,000 HKD
As of November 1, 2026
Save $1,283 AUD (64%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $2,734 AUD at NZ Jewellers · As of October 30, 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 SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1555995372. Listed at 17 retailers as of November 1, 2026, with a 176% 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
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryGood
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 1555995372
Dimensions7.53 × 4.22 × 2.65 mm
L/W Ratio1.78
Key to symbols
Feather, Crystal
Top View
7.53 mm4.22 mm0.50 ctH / SI2
OriginNatural
CutExcellent
PolishVery Good
SymmetryGood
FluorescenceFaint
CertificateGIA 1555995372
Side View
Table 57.0%CrownGirdle: THK-ETKPavilionCulet: 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: $2,734 AUD|Low: $712 AUD|High: $2,734 AUD|Avg: $1,141 AUD|+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
November 2, 2026
Retailer 5$731 AUD
Retailer 4$803 AUD
Retailer 15$872 AUD
Retailer 6$892 AUD
Retailer 9$907 AUD
Retailer 16$939 AUD
Retailer 17$939 AUD
Retailer 3$1,006 AUD
Retailer 14$1,006 AUD
Retailer 2$1,041 AUD
Retailer 7$1,056 AUD
Retailer 8$1,060 AUD
Retailer 11$1,072 AUD
Retailer 13$1,092 AUD
Retailer 10$1,285 AUD
Retailer 12$2,013 AUD
NZ Jewellers$2,734 AUD

28 data points across 17 retailers

17 retailers$731 AUD to $2,013 AUD

A
Cheapest Retailer
-
$731 AUD
HK$4,000 HKD
B+
Retailer 2
-
$803 AUD
$563 USD
View
Final sale: no returns
A
Retailer 3
-
$872 AUD
$611 USD
View
A
Retailer 4
-
$892 AUD
$625 USD
View
B+
Retailer 5
-
$907 AUD
SGD 859 SGD
View
B+
Retailer 6
-
$939 AUD
$658 USD
View
B+
Retailer 7
-
$939 AUD
$658 USD
View
B+
Retailer 8
-
$1,006 AUD
$705 USD
View
Retailer 9
-
$1,006 AUD
$705 USD
View
Price last confirmed 15 days ago
B+
Retailer 10
-
$1,041 AUD
£575 GBP
View
B+
Retailer 11
-
$1,056 AUD
$740 USD
View
B+
Retailer 12
-
$1,060 AUD
$743 USD
View
B+
Retailer 13
-
$1,072 AUD
£591 GBP
View
B+
Retailer 14
-
$1,092 AUD
£603 GBP
View
B+
Retailer 15
-
$1,285 AUD
€858 EUR
View
B
Retailer 16
-
$2,013 AUD
£1,111 GBP
View
Most Expensive
NZ Jewellers
49ef68ae-4073-441a-9b07-0f67b322082c · Oct 30
$2,734 AUD
$1,916 USD
View
Price under review
16 more retailers have this diamond
Prices start from $731 AUDSave up to $1,283 AUD

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
$731 AUD