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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 $748 NZD
₹40,061 INR
As of November 2, 2026
Save $1,591 NZD (68%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $3,174 NZD 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: $748 NZD|Low: $746 NZD|High: $2,366 NZD|Avg: $1,358 NZD|-1.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 2, 2026
Retailer 1$748 NZD
Retailer 8$935 NZD
Retailer 3$1,241 NZD
Retailer 2$1,242 NZD
Retailer 7$1,360 NZD
Retailer 5$1,500 NZD
Retailer 6$1,562 NZD
Retailer 4$2,338 NZD

28 data points across 8 retailers

15 retailers$748 NZD to $2,338 NZD

B+
Cheapest Retailer
-
$748 NZD
₹40,061 INR
B+
Retailer 2
-
$935 NZD
$526 USD
View
Final sale: no returns
Retailer 3
-
$1,011 NZD
$569 USD
View
Price last confirmed 32 days ago
Retailer 4
-
$1,089 NZD
$613 USD
View
Price last confirmed 33 days ago
B
Retailer 5
-
$1,089 NZD
$613 USD
View
Retailer 6
-
$1,168 NZD
$657 USD
View
Price last confirmed 34 days ago
B
Retailer 7
-
$1,241 NZD
£550 GBP
View
B
Retailer 8
-
$1,242 NZD
£550 GBP
View
C
Retailer 9
-
$1,360 NZD
$765 USD
View
B
Retailer 10
-
$1,406 NZD
$791 USD
View
B
Retailer 11
-
$1,500 NZD
€804 EUR
View
Retailer 12
-
$1,522 NZD
A$1,317 AUD
View
Price last confirmed 29 days ago
B
Retailer 13
-
$1,562 NZD
ZAR 14,199 ZAR
View
C
Retailer 14
-
$2,338 NZD
£1,036 GBP
View
Most Expensive
NZ Jewellers
830d84ae-4bce-4c13-a11e-eed453bd6203 · Sep 29
$3,174 NZD
$1,786 USD
View
Price under review
14 more retailers have this diamond
Prices start from $748 NZDSave up to $1,591 NZD

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
$748 NZD