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Marquise|Natural|GIA

0.50ct D SI2 Marquise Natural Diamond

ID • D/SI2 • GIA 5546562173

Certificate GIA 5546562173

Diamond specifications and retailer prices

From $848 AUD
As of November 6, 2026
Save $1,223 AUD (59%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $3,547 AUD at NZ Jewellers · As of October 17, 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 D colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 5546562173. Listed at 14 retailers as of November 2, 2026, with a 144% 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
D
Colour
SI2
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5546562173
Dimensions8.74 × 4.25 × 2.47 mm
L/W Ratio2.06
Top View
8.74 mm4.25 mm0.50 ctD / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 5546562173
Side View
Table 60.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 58.0%

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 6
Current: $848 AUD|Low: $848 AUD|High: $2,096 AUD|Avg: $1,239 AUD|-5.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 1$848 AUD
Retailer 8$856 AUD
Retailer 3$1,010 AUD
Retailer 9$1,042 AUD
Retailer 11$1,131 AUD
Retailer 10$1,147 AUD
Retailer 4$1,192 AUD
Retailer 2$1,323 AUD
Retailer 6$1,338 AUD
Retailer 5$1,592 AUD
Retailer 7$2,071 AUD

39 data points across 11 retailers

14 retailers$848 AUD to $2,071 AUD

A
Cheapest Retailer
-
$848 AUD
A
Retailer 2
-
$856 AUD
View
A
Retailer 3
-
$1,042 AUD
View
Final sale: no returns
Retailer 4
-
$1,131 AUD
View
Price last confirmed 21 days ago
Retailer 5
-
$1,131 AUD
View
Price last confirmed 17 days ago
A
Retailer 6
-
$1,147 AUD
View
Retailer 7
-
$1,175 AUD
View
Price last confirmed 21 days ago
B+
Retailer 8
-
$1,192 AUD
View
Retailer 9
-
$1,305 AUD
View
Price last confirmed 18 days ago
B+
Retailer 10
-
$1,323 AUD
View
B+
Retailer 11
-
$1,338 AUD
View
B+
Retailer 12
-
$1,592 AUD
View
B
Retailer 13
-
$2,071 AUD
View
Most Expensive
NZ Jewellers
e7db89c1-4a77-40e5-bce9-07b357fbd08a · Oct 17
$3,547 AUD
$2,437 USD
View
Price under review
13 more retailers have this diamond
Prices start from $848 AUDSave up to $1,223 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
$848 AUD