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Marquise|Natural|GIA

0.50ct J SI2 Marquise Natural Diamond

EX • J/SI2 • GIA 5566263559

Certificate GIA 5566263559

Diamond specifications and retailer prices

From $509 AUD
₹33,986 INR
As of November 2, 2026
Save $1,046 AUD (67%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $2,580 AUD at NZ Jewellers · As of November 3, 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 SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 5566263559. Listed at 17 retailers as of November 2, 2026, with a 205% 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
J
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5566263559
Dimensions7.76 × 4.07 × 2.59 mm
L/W Ratio1.91
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Twinning Wisp, Feather
Top View
7.76 mm4.07 mm0.50 ctJ / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 5566263559
Side View
Table 61.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 63.7%

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 2
Current: $839 AUD|Low: $509 AUD|High: $1,562 AUD|Avg: $791 AUD|+4.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 3, 2026
Retailer 4$509 AUD
Retailer 10$571 AUD
Retailer 2$621 AUD
Retailer 6$621 AUD
Retailer 5$804 AUD
Retailer 7$813 AUD
Retailer 1$839 AUD
Retailer 9$876 AUD
Retailer 8$1,014 AUD
Retailer 3$1,555 AUD

15 data points across 10 retailers

17 retailers$509 AUD to $1,555 AUD

A
Cheapest Retailer
-
$509 AUD
₹33,986 INR
A
Retailer 2
-
$571 AUD
$400 USD
View
A
Retailer 3
-
$621 AUD
$435 USD
View
B+
Retailer 4
-
$621 AUD
$435 USD
View
Final sale: no returns
A
Retailer 5
-
$673 AUD
$472 USD
View
A
Retailer 6
-
$688 AUD
$482 USD
View
A
Retailer 7
-
$725 AUD
$508 USD
View
A
Retailer 8
-
$725 AUD
$508 USD
View
B+
Retailer 9
-
$776 AUD
$544 USD
View
B+
Retailer 10
-
$804 AUD
£444 GBP
View
B+
Retailer 11
-
$813 AUD
$570 USD
View
B+
Retailer 12
-
$839 AUD
£463 GBP
View
B+
Retailer 13
-
$860 AUD
$603 USD
View
B+
Retailer 14
-
$876 AUD
$614 USD
View
B+
Retailer 15
-
$1,014 AUD
€677 EUR
View
B
Retailer 16
-
$1,555 AUD
£858 GBP
View
Most Expensive
NZ Jewellers
924eb302-67a8-4ca8-b6fe-a3b5d9c13a14 · Nov 3
$2,580 AUD
$1,808 USD
View
Price under review
16 more retailers have this diamond
Prices start from $509 AUDSave up to $1,046 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
$509 AUD