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Marquise|Natural|GIA

0.50ct H SI2 Marquise Natural Diamond

EX • H/SI2 • GIA 5543557515

Certificate GIA 5543557515

Diamond specifications and retailer prices

From $978 AUD
$685 USD
As of October 31, 2026
Save $1,172 AUD (55%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $2,149 AUD at MOH London · As of November 2, 2026
View at MOH London

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 5543557515. Listed at 17 retailers as of October 31, 2026, with prices from $978 to $2,149, a $1,172 spread on the same certified stone. MOH London lists it at $2,149. 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
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 5543557515
Dimensions8.55 × 3.88 × 2.48 mm
L/W Ratio2.20
Top View
8.55 mm3.88 mm0.50 ctH / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 5543557515
Side View
Table 58.0%CrownGirdle: VTK-ETKPavilionCulet: NDepth 63.7%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: $2,149 AUD|Low: $1,063 AUD|High: $3,681 AUD|Avg: $1,669 AUD
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 2, 2026
Retailer 7$1,063 AUD
Retailer 11$1,063 AUD
Retailer 5$1,104 AUD
Retailer 8$1,227 AUD
Retailer 10$1,311 AUD
Retailer 2$1,401 AUD
Retailer 4$1,659 AUD
Retailer 3$1,766 AUD
Retailer 9$1,887 AUD
MOH London$2,149 AUD
Retailer 6$3,681 AUD

43 data points across 11 retailers

17 retailers$978 AUD to $2,149 AUD

B+
Cheapest Retailer
-
$978 AUD
$685 USD
B+
Retailer 2
-
$1,063 AUD
$745 USD
View
B+
Retailer 3
-
$1,063 AUD
$745 USD
View
B+
Retailer 4
-
$1,073 AUD
$752 USD
View
B+
Retailer 5
-
$1,080 AUD
$757 USD
View
B+
Retailer 6
-
$1,104 AUD
$774 USD
View
B
Retailer 7
-
$1,207 AUD
$846 USD
View
B
Retailer 8
-
$1,227 AUD
$860 USD
View
B
Retailer 9
-
$1,311 AUD
$919 USD
View
B
Retailer 10
-
$1,313 AUD
$920 USD
View
B
Retailer 11
-
$1,313 AUD
$920 USD
View
B
Retailer 12
-
$1,356 AUD
$950 USD
View
B
Retailer 13
-
$1,401 AUD
£773 GBP
View
B
Retailer 14
-
$1,659 AUD
€1,107 EUR
View
B
Retailer 15
-
$1,887 AUD
CA$1,837 CAD
View
Most Expensive
B
MOH London
AE1889CAC · Nov 2
$2,149 AUD
£1,186 GBP
View
15 more retailers have this diamond
Prices start from $978 AUDSave up to $1,172 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.

B+
0.50ct Marquise
$978 AUD