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Marquise|Natural|GIA

0.50ct F SI1 Marquise Natural Diamond

EX • F/SI1 • GIA 6555767334

Certificate GIA 6555767334

Diamond specifications and retailer prices

From $1,137 NZD
HK$5,000 HKD
As of November 1, 2026
Save $1,659 NZD (59%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $4,786 NZD 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 F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6555767334. Listed at 20 retailers as of November 1, 2026, with a 146% 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
F
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.2°
Pavilion angle37.5°
OriginNatural
Grading LabGIA
CertificateGIA 6555767334
Dimensions8.92 × 4.18 × 2.37 mm
L/W Ratio2.13
Key to symbols
Feather
Top View
8.92 mm4.18 mm0.50 ctF / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6555767334
Side View
Table 59.0%Crown 32.2°Girdle: STK-VTKPavilion 37.5°Culet: NoneDepth 56.6%

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: $4,786 NZD|Low: $1,092 NZD|High: $4,786 NZD|Avg: $1,916 NZD|+6.7%
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
Retailer 17
Retailer 18
November 3, 2026
Retailer 3$1,137 NZD
Retailer 10$1,361 NZD
Retailer 4$1,408 NZD
Retailer 16$1,527 NZD
Retailer 18$1,527 NZD
Retailer 9$1,546 NZD
Retailer 8$1,582 NZD
Retailer 17$1,585 NZD
Retailer 5$1,690 NZD
Retailer 15$1,761 NZD
Retailer 7$1,763 NZD
Retailer 6$1,813 NZD
Retailer 2$1,839 NZD
Retailer 12$1,874 NZD
Retailer 13$2,154 NZD
Retailer 14$2,356 NZD
Retailer 11$2,797 NZD
NZ Jewellers$4,786 NZD

25 data points across 18 retailers

20 retailers$1,137 NZD to $2,797 NZD

A
Cheapest Retailer
-
$1,137 NZD
HK$5,000 HKD
Retailer 2
-
$1,361 NZD
$766 USD
View
Price last confirmed 15 days ago
B+
Retailer 3
-
$1,408 NZD
$792 USD
View
Final sale: no returns
B+
Retailer 4
-
$1,511 NZD
$850 USD
View
B+
Retailer 5
-
$1,527 NZD
$859 USD
View
B+
Retailer 6
-
$1,527 NZD
$859 USD
View
B+
Retailer 7
-
$1,546 NZD
$870 USD
View
B+
Retailer 8
-
$1,582 NZD
SGD 1,203 SGD
View
Price last confirmed 7 days ago
B+
Retailer 9
-
$1,585 NZD
$892 USD
View
B+
Retailer 10
-
$1,690 NZD
$951 USD
View
B+
Retailer 11
-
$1,761 NZD
$991 USD
View
B+
Retailer 12
-
$1,763 NZD
$992 USD
View
B+
Retailer 13
-
$1,813 NZD
$1,020 USD
View
B+
Retailer 14
-
$1,839 NZD
£815 GBP
View
B+
Retailer 15
-
$1,874 NZD
£830 GBP
View
B
Retailer 16
-
$2,154 NZD
€1,154 EUR
View
Retailer 17
-
$2,295 NZD
A$1,987 AUD
View
Price last confirmed 29 days ago
B
Retailer 18
-
$2,356 NZD
ZAR 21,417 ZAR
View
B
Retailer 19
-
$2,797 NZD
£1,239 GBP
View
Most Expensive
NZ Jewellers
0404b563-645a-408c-9631-26567cf1751a · Nov 3
$4,786 NZD
$2,693 USD
View
Price under review
19 more retailers have this diamond
Prices start from $1,137 NZDSave up to $1,659 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.

A
0.50ct Marquise
$1,137 NZD