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Marquise|Natural|GIA

0.50ct K SI1 Marquise Natural Diamond

GD • K/SI1 • GIA 2366811494

Certificate GIA 2366811494

Diamond specifications and retailer prices

From $800 AUD
As of November 1, 2026
Save $1,349 AUD (63%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $2,923 AUD at NZ Jewellers · As of November 5, 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 K colour (faint-tinted) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 2366811494. Listed at 14 retailers as of November 1, 2026, with a 169% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

0.50
Carat
K
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2366811494
Dimensions7.68 × 4.26 × 2.62 mm
L/W Ratio1.80
Top View
7.68 mm4.26 mm0.50 ctK / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2366811494
Side View
Table 60.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 61.4%

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: Nov 1
Current: $2,923 AUD|Low: $800 AUD|High: $2,923 AUD|Avg: $1,331 AUD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 7$800 AUD
Retailer 3$844 AUD
Retailer 9$910 AUD
Retailer 11$974 AUD
Retailer 10$1,031 AUD
Retailer 8$1,121 AUD
Retailer 4$1,137 AUD
Retailer 2$1,243 AUD
Retailer 5$1,438 AUD
Retailer 6$2,148 AUD
NZ Jewellers$2,923 AUD

44 data points across 11 retailers

14 retailers$800 AUD to $2,148 AUD

B+
Cheapest Retailer
-
$800 AUD
B+
Retailer 2
-
$844 AUD
View
B+
Retailer 3
-
$873 AUD
View
Retailer 4
-
$910 AUD
View
Price last confirmed 8 days ago
B
Retailer 5
-
$910 AUD
View
B
Retailer 6
-
$974 AUD
View
B
Retailer 7
-
$983 AUD
View
B
Retailer 8
-
$1,031 AUD
View
B
Retailer 9
-
$1,121 AUD
View
B
Retailer 10
-
$1,137 AUD
View
B
Retailer 11
-
$1,243 AUD
View
B
Retailer 12
-
$1,438 AUD
View
C
Retailer 13
-
$2,148 AUD
View
Most Expensive
NZ Jewellers
a2c5e98f-3b3a-4a62-a6b4-fbceeb312428 · Nov 5
$2,923 AUD
$2,046 USD
View
Price under review
13 more retailers have this diamond
Prices start from $800 AUDSave up to $1,349 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
$800 AUD