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Marquise|Natural|GIA

0.50ct E SI1 Marquise Natural Diamond

VG • E/SI1 • GIA 6531995714

Certificate GIA 6531995714

Diamond specifications and retailer prices

From $1,816 NZD
As of November 4, 2026
Save $2,151 NZD (54%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $5,298 NZD at NZ Jewellers · As of November 5, 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 E colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 6531995714. Listed at 22 retailers as of November 4, 2026, with a 118% 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
E
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishVery Good
SymmetryVery Good
FluorescenceFaint
Pavilion angle37.5°
OriginNatural
Grading LabGIA
CertificateGIA 6531995714
Dimensions8.55 × 4.25 × 2.46 mm
L/W Ratio2.01
Top View
8.55 mm4.25 mm0.50 ctE / SI1
OriginNatural
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceFaint
CertificateGIA 6531995714
Side View
Table 55.0%CrownGirdle: MED-THKPavilion 37.5°Culet: NoneDepth 57.8%

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 4
Current: $5,298 NZD|Low: $1,514 NZD|High: $5,298 NZD|Avg: $2,875 NZD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 7$1,816 NZD
Retailer 10$1,967 NZD
Retailer 9$2,042 NZD
Retailer 6$2,206 NZD
Retailer 3$2,453 NZD
Retailer 2$2,804 NZD
Retailer 8$2,839 NZD
Retailer 4$3,351 NZD
Retailer 5$3,967 NZD
NZ Jewellers$5,298 NZD

45 data points across 10 retailers

22 retailers$1,816 NZD to $3,967 NZD

B+
Cheapest Retailer
-
$1,816 NZD
Final sale: no returns
B
Retailer 2
-
$1,884 NZD
View
B+
Retailer 3
-
$1,914 NZD
View
B+
Retailer 4
-
$1,927 NZD
View
B+
Retailer 5
-
$1,967 NZD
View
Retailer 6
-
$1,967 NZD
View
Price last confirmed 8 days ago
B
Retailer 7
-
$2,042 NZD
View
B
Retailer 8
-
$2,202 NZD
View
B
Retailer 9
-
$2,206 NZD
View
B
Retailer 10
-
$2,270 NZD
View
B
Retailer 11
-
$2,366 NZD
View
B
Retailer 12
-
$2,366 NZD
View
B
Retailer 13
-
$2,453 NZD
View
B
Retailer 14
-
$2,455 NZD
View
B
Retailer 15
-
$2,455 NZD
View
B
Retailer 16
-
$2,775 NZD
View
B
Retailer 17
-
$2,804 NZD
View
Retailer 18
-
$2,839 NZD
View
Price last confirmed 33 days ago
B
Retailer 19
-
$3,351 NZD
View
B
Retailer 20
-
$3,533 NZD
View
B
Retailer 21
-
$3,967 NZD
View
Most Expensive
NZ Jewellers
44786f66-b0e9-4c52-b44f-4deec32d260f · Nov 5
$5,298 NZD
$2,978 USD
View
Price under review
21 more retailers have this diamond
Prices start from $1,816 NZDSave up to $2,151 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
$1,816 NZD