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Marquise|Natural|GIA

0.50ct K SI2 Marquise Natural Diamond

VG • K/SI2 • GIA 6465636161

Certificate GIA 6465636161

Diamond specifications and retailer prices

From $410 AUD
As of November 6, 2026
Save $873 AUD (68%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $2,144 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 K colour (faint-tinted) and SI2 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 6465636161. Listed at 15 retailers as of November 6, 2026, with a 213% 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
SI2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6465636161
Dimensions7.56 × 4.16 × 2.66 mm
L/W Ratio1.82
Top View
7.56 mm4.16 mm0.50 ctK / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6465636161
Side View
Table 56.0%CrownGirdle: ThickPavilionCulet: NoneDepth 64.0%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $2,144 AUD|Low: $410 AUD|High: $2,144 AUD|Avg: $809 AUD
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
November 7, 2026
Retailer 7$410 AUD
Retailer 11$483 AUD
Retailer 13$559 AUD
Retailer 10$582 AUD
Retailer 5$597 AUD
Retailer 12$603 AUD
Retailer 6$645 AUD
Retailer 8$718 AUD
Retailer 4$750 AUD
Retailer 3$752 AUD
Retailer 14$811 AUD
Retailer 9$1,016 AUD
Retailer 2$1,284 AUD
NZ Jewellers$2,144 AUD

40 data points across 14 retailers

15 retailers$410 AUD to $1,284 AUD

A
Cheapest Retailer
-
$410 AUD
B+
Retailer 2
-
$483 AUD
View
Retailer 3
-
$559 AUD
View
Price last confirmed 18 days ago
B+
Retailer 4
-
$582 AUD
View
B+
Retailer 5
-
$597 AUD
View
Retailer 6
-
$603 AUD
View
Price last confirmed 22 days ago
Retailer 7
-
$624 AUD
View
Price last confirmed 22 days ago
B+
Retailer 8
-
$645 AUD
View
B+
Retailer 9
-
$718 AUD
View
B+
Retailer 10
-
$750 AUD
View
Retailer 11
-
$752 AUD
View
Price last confirmed 19 days ago
B+
Retailer 12
-
$811 AUD
View
B
Retailer 13
-
$1,016 AUD
View
B
Retailer 14
-
$1,284 AUD
View
Most Expensive
NZ Jewellers
f37dc48c-1ddc-4d90-99cb-6d2220e3e1c3 · Oct 17
$2,144 AUD
$1,473 USD
View
Price last confirmed 20 days ago
14 more retailers have this diamond
Prices start from $410 AUDSave up to $873 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
$410 AUD