CaratHunter
Plans
Marquise|Natural|GIA

0.50ct J SI1 Marquise Natural Diamond

GD • J/SI1 • GIA 6325340604

Certificate GIA 6325340604

Diamond specifications and retailer prices

From $839 AUD
$588 USD
As of November 2, 2026
Save $1,265 AUD (60%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $2,855 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 J colour (near-colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 6325340604. Listed at 17 retailers as of November 1, 2026, with a 151% 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
J
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishGood
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6325340604
Dimensions7.06 × 4.28 × 2.83 mm
L/W Ratio1.65
Top View
7.06 mm4.28 mm0.50 ctJ / SI1
OriginNatural
CutGood
PolishGood
SymmetryGood
FluorescenceNone
CertificateGIA 6325340604
Side View
Table 58.0%CrownGirdle: SLI-EXTPavilionCulet: NoneDepth 66.1%

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 2
Current: $2,855 AUD|Low: $771 AUD|High: $2,855 AUD|Avg: $1,229 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
Retailer 15
Retailer 16
November 2, 2026
Retailer 4$839 AUD
Retailer 11$877 AUD
Retailer 16$910 AUD
Retailer 14$980 AUD
Retailer 15$980 AUD
Retailer 6$1,006 AUD
Retailer 7$1,013 AUD
Retailer 3$1,050 AUD
Retailer 8$1,099 AUD
Retailer 9$1,112 AUD
Retailer 2$1,118 AUD
Retailer 5$1,177 AUD
Retailer 12$1,339 AUD
Retailer 13$1,406 AUD
Retailer 10$2,104 AUD
NZ Jewellers$2,855 AUD

27 data points across 16 retailers

17 retailers$839 AUD to $2,104 AUD

B+
Cheapest Retailer
-
$839 AUD
$588 USD
Final sale: no returns
B+
Retailer 2
-
$877 AUD
HK$4,800 HKD
View
B
Retailer 3
-
$910 AUD
$638 USD
View
B
Retailer 4
-
$980 AUD
$687 USD
View
B
Retailer 5
-
$980 AUD
$687 USD
View
Retailer 6
-
$980 AUD
$687 USD
View
Price last confirmed 26 days ago
B
Retailer 7
-
$1,013 AUD
$710 USD
View
B
Retailer 8
-
$1,050 AUD
$736 USD
View
Retailer 9
-
$1,050 AUD
$736 USD
View
Price last confirmed 26 days ago
B
Retailer 10
-
$1,099 AUD
$770 USD
View
B
Retailer 11
-
$1,112 AUD
£614 GBP
View
B
Retailer 12
-
$1,118 AUD
£617 GBP
View
B
Retailer 13
-
$1,177 AUD
$825 USD
View
B
Retailer 14
-
$1,339 AUD
€894 EUR
View
C
Retailer 15
-
$1,406 AUD
ZAR 15,914 ZAR
View
C
Retailer 16
-
$2,104 AUD
£1,161 GBP
View
Most Expensive
NZ Jewellers
5f8603cd-87bc-4a0d-8f18-062160d48f1f · Oct 30
$2,855 AUD
$2,001 USD
View
Price under review
16 more retailers have this diamond
Prices start from $839 AUDSave up to $1,265 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
$839 AUD