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Marquise|Natural|IGI

0.50ct H SI1 Marquise Natural Diamond

VG • H/SI1 • IGI 815681702

Shape and cutting style on the report: Marquise brilliant

Certificate IGI 815681702

Diamond specifications and retailer prices

From $644 NZD
As of November 6, 2026
Save $2,650 NZD (80%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $3,294 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 H colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI 815681702. Listed at 19 retailers as of November 5, 2026, with prices from $644 to $3,294, a $2,650 spread on the same certified stone. NZ Jewellers lists it at $3,294. 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
H
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle44.3°
Pavilion angle37°
OriginNatural
Grading LabIGI
CertificateIGI 815681702
Dimensions8.31 × 4.13 × 2.46 mm
L/W Ratio2.01
Girdle conditionFaceted
Top View
8.31 mm4.13 mm0.50 ctH / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 815681702
Side View
Table 60.0%Crown 44.3°Girdle: MED-STKPavilion 37°Culet: NoneDepth 59.6%

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 6
Current: $3,294 NZD|Low: $644 NZD|High: $3,294 NZD|Avg: $1,165 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
Retailer 16
Retailer 17
Retailer 18
Retailer 19
November 6, 2026
Retailer 2$644 NZD
Retailer 7$740 NZD
Retailer 9$794 NZD
Retailer 11$794 NZD
Retailer 15$859 NZD
Retailer 3$925 NZD
Retailer 4$925 NZD
Retailer 19$992 NZD
Retailer 12$1,048 NZD
Retailer 18$1,048 NZD
Retailer 5$1,075 NZD
Retailer 6$1,095 NZD
Retailer 14$1,095 NZD
Retailer 8$1,120 NZD
Retailer 13$1,196 NZD
Retailer 10$1,227 NZD
Retailer 16$1,331 NZD
Retailer 17$1,981 NZD
NZ Jewellers$3,294 NZD

19 data points across 19 retailers

19 retailers$644 NZD to $3,294 NZD

A
Cheapest Retailer
-
$644 NZD
A
Retailer 2
-
$740 NZD
View
A
Retailer 3
-
$794 NZD
View
Final sale: no returns
A
Retailer 4
-
$794 NZD
View
A
Retailer 5
-
$859 NZD
View
Retailer 6
-
$925 NZD
View
Price last confirmed 9 days ago
A
Retailer 7
-
$925 NZD
View
A
Retailer 8
-
$992 NZD
View
A
Retailer 9
-
$1,048 NZD
View
A
Retailer 10
-
$1,048 NZD
View
A
Retailer 11
-
$1,075 NZD
View
A
Retailer 12
-
$1,095 NZD
View
B+
Retailer 13
-
$1,095 NZD
View
B+
Retailer 14
-
$1,120 NZD
View
B+
Retailer 15
-
$1,196 NZD
View
B+
Retailer 16
-
$1,227 NZD
View
B+
Retailer 17
-
$1,331 NZD
View
B
Retailer 18
-
$1,981 NZD
View
Most Expensive
B
NZ Jewellers
f1394ae1-8bb3-419f-af27-14764a6559c2 · Nov 5
$3,294 NZD
$1,826 USD
View
18 more retailers have this diamond
Prices start from $644 NZDSave up to $2,650 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
$644 NZD