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Marquise|Natural|GIA

0.50ct J SI1 Marquise Natural Diamond

FR • J/SI1 • GIA 6555255852

Certificate GIA 6555255852

Diamond specifications and retailer prices

From $600 AUD
₹40,061 INR
As of November 2, 2026
Save $1,277 AUD (68%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $2,548 AUD at NZ Jewellers · As of September 29, 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 6555255852. Listed at 15 retailers as of November 2, 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
J
Colour
SI1
Clarity
Fair
Cut (retailer stated)

Specifications

Cut (retailer stated)Fair
PolishExcellent
SymmetryVery Good
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 6555255852
Dimensions7.84 × 4.09 × 2.38 mm
L/W Ratio1.92
Key to symbols
Twinning Wisp, Feather
Top View
7.84 mm4.09 mm0.50 ctJ / SI1
OriginNatural
CutFair
PolishExcellent
SymmetryVery Good
FluorescenceMedium
CertificateGIA 6555255852
Side View
Table 60.0%CrownGirdle: VTK-ETKPavilionCulet: NDepth 58.3%

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: $996 AUD|Low: $599 AUD|High: $1,899 AUD|Avg: $1,089 AUD|+4.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 3, 2026
Retailer 2$600 AUD
Retailer 8$751 AUD
Retailer 1$996 AUD
Retailer 3$997 AUD
Retailer 7$1,092 AUD
Retailer 5$1,205 AUD
Retailer 6$1,254 AUD
Retailer 4$1,877 AUD

29 data points across 8 retailers

15 retailers$600 AUD to $1,877 AUD

B+
Cheapest Retailer
-
$600 AUD
₹40,061 INR
B+
Retailer 2
-
$751 AUD
$526 USD
View
Final sale: no returns
Retailer 3
-
$812 AUD
$569 USD
View
Price last confirmed 32 days ago
Retailer 4
-
$875 AUD
$613 USD
View
Price last confirmed 33 days ago
B
Retailer 5
-
$875 AUD
$613 USD
View
Retailer 6
-
$937 AUD
$657 USD
View
Price last confirmed 34 days ago
B
Retailer 7
-
$996 AUD
£550 GBP
View
B
Retailer 8
-
$997 AUD
£550 GBP
View
C
Retailer 9
-
$1,092 AUD
$765 USD
View
B
Retailer 10
-
$1,129 AUD
$791 USD
View
B
Retailer 11
-
$1,205 AUD
€804 EUR
View
Retailer 12
-
$1,222 AUD
View
Price last confirmed 29 days ago
B
Retailer 13
-
$1,254 AUD
ZAR 14,199 ZAR
View
C
Retailer 14
-
$1,877 AUD
£1,036 GBP
View
Most Expensive
NZ Jewellers
830d84ae-4bce-4c13-a11e-eed453bd6203 · Sep 29
$2,548 AUD
$1,786 USD
View
Price under review
14 more retailers have this diamond
Prices start from $600 AUDSave up to $1,277 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
$600 AUD