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Marquise|Natural|IGI

0.50ct J SI1 Marquise Natural Diamond

VG • J/SI1 • IGI 815673837

Shape and cutting style on the report: Marquise brilliant

Certificate IGI 815673837

Diamond specifications and retailer prices

From $615 NZD
₹32,959 INR
As of October 31, 2026
Save $1,279 NZD (68%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $3,142 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 J colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI 815673837. Listed at 15 retailers as of October 31, 2026, with a 208% 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
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle38.3°
Pavilion angle38.2°
OriginNatural
Grading LabIGI
CertificateIGI 815673837
Dimensions8.49 × 4.19 × 2.44 mm
L/W Ratio2.03
Girdle conditionFaceted
Top View
8.49 mm4.19 mm0.50 ctJ / SI1
OriginNatural
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI 815673837
Side View
Table 61.0%Crown 38.3°Girdle: MED-THKPavilion 38.2°Culet: NoneDepth 58.2%

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: Oct 31
Current: $3,142 NZD|Low: $614 NZD|High: $3,142 NZD|Avg: $1,177 NZD
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
November 3, 2026
Retailer 11$615 NZD
Retailer 6$755 NZD
Retailer 3$819 NZD
Retailer 14$883 NZD
Retailer 15$883 NZD
Retailer 12$942 NZD
Retailer 4$946 NZD
Retailer 8$1,007 NZD
Retailer 7$1,053 NZD
Retailer 2$1,061 NZD
Retailer 5$1,118 NZD
Retailer 9$1,136 NZD
Retailer 13$1,266 NZD
Retailer 10$1,894 NZD
NZ Jewellers$3,142 NZD

27 data points across 15 retailers

15 retailers$615 NZD to $1,894 NZD

A
Cheapest Retailer
-
$615 NZD
₹32,959 INR
B+
Retailer 2
-
$755 NZD
$425 USD
View
Final sale: no returns
B+
Retailer 3
-
$819 NZD
$461 USD
View
B+
Retailer 4
-
$883 NZD
$497 USD
View
B+
Retailer 5
-
$883 NZD
$497 USD
View
B+
Retailer 6
-
$942 NZD
$530 USD
View
B+
Retailer 7
-
$946 NZD
$532 USD
View
B+
Retailer 8
-
$1,007 NZD
£446 GBP
View
B+
Retailer 9
-
$1,053 NZD
$593 USD
View
B+
Retailer 10
-
$1,061 NZD
£470 GBP
View
B+
Retailer 11
-
$1,118 NZD
$629 USD
View
B+
Retailer 12
-
$1,136 NZD
€609 EUR
View
B
Retailer 13
-
$1,266 NZD
ZAR 11,504 ZAR
View
B
Retailer 14
-
$1,894 NZD
£839 GBP
View
Most Expensive
NZ Jewellers
6d3cfa28-6dc7-488f-a65b-f9502d5760b2 · Nov 3
$3,142 NZD
$1,768 USD
View
Price under review
14 more retailers have this diamond
Prices start from $615 NZDSave up to $1,279 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
$615 NZD