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Marquise|Natural|GIA

0.50ct I SI2 Marquise Natural Diamond

VG • I/SI2 • GIA 6561734759

Certificate GIA 6561734759

Diamond specifications and retailer prices

From $735 AUD
$515 USD
As of November 1, 2026
Save $1,568 AUD (68%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $2,303 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 I colour (near-colourless) and SI2 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 6561734759. Listed at 7 retailers as of October 30, 2026, with prices from $735 to $2,303, a $1,568 spread on the same certified stone. NZ Jewellers lists it at $2,303. 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
I
Colour
SI2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishVery Good
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6561734759
Dimensions8.87 × 4.00 × 2.58 mm
L/W Ratio2.22
Culet sizeNone
Key to symbols
Twinning Wisp, Crystal
Top View
8.87 mm4.00 mm0.50 ctI / SI2
OriginNatural
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceFaint
CertificateGIA 6561734759
Side View
Table 57.0%CrownGirdle: THN-THKPavilionCulet: NoneDepth 64.4%

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 1
Current: $2,303 AUD|Low: $735 AUD|High: $2,303 AUD|Avg: $1,344 AUD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 2, 2026
Retailer 5$735 AUD
Retailer 2$791 AUD
Retailer 3$877 AUD
Retailer 4$1,041 AUD
Retailer 6$1,696 AUD
NZ Jewellers$2,303 AUD

4 data points across 6 retailers

7 retailers$735 AUD to $2,303 AUD

A
Cheapest Retailer
-
$735 AUD
$515 USD
A
Retailer 2
-
$747 AUD
SGD 707 SGD
View
B+
Retailer 3
-
$791 AUD
$554 USD
View
B+
Retailer 4
-
$877 AUD
£484 GBP
View
B+
Retailer 5
-
$1,041 AUD
€695 EUR
View
C
Retailer 6
-
$1,696 AUD
£936 GBP
View
Most Expensive
C
NZ Jewellers
4fd195cc-9511-49d6-9086-2a765a2135eb · Oct 30
$2,303 AUD
$1,614 USD
View
6 more retailers have this diamond
Prices start from $735 AUDSave up to $1,568 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
$735 AUD