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Marquise|Natural|IGI

1.30ct J SI1 Marquise Natural Diamond

VG • J/SI1 • IGI 819640378

Shape and cutting style on the report: Marquise brilliant

Certificate IGI 819640378

Diamond specifications and retailer prices

From $5,800 NZD
As of November 1, 2026
Save $6,207 NZD (52%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $12,007 NZD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.3ct natural marquise diamond

This 1.3ct natural marquise sits in the one-and-a-quarter to one-and-a-half carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI 819640378. Listed at 9 retailers as of November 1, 2026, with prices from $5,800 to $12,007, a $6,207 spread on the same certified stone. NZ Jewellers lists it at $12,007. 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

1.30
Carat
J
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle46.2°
Pavilion angle38.8°
OriginNatural
Grading LabIGI
CertificateIGI 819640378
Dimensions10.71 × 5.42 × 3.57 mm
L/W Ratio1.98
Girdle conditionFaceted
Culet sizeNone
Top View
10.71 mm5.42 mm1.30 ctJ / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateIGI 819640378
Side View
Table 61.0%Crown 46.2°Girdle: STK-THKPavilion 38.8°Culet: NoneDepth 65.9%

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: $12,007 NZD|Low: $5,800 NZD|High: $12,348 NZD|Avg: $8,150 NZD|-2.8%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 8$5,800 NZD
Retailer 4$6,032 NZD
Retailer 9$6,644 NZD
Retailer 2$6,685 NZD
Retailer 5$6,893 NZD
Retailer 7$7,158 NZD
Retailer 3$7,948 NZD
Retailer 6$11,525 NZD
NZ Jewellers$12,007 NZD

32 data points across 9 retailers

9 retailers$5,800 NZD to $12,007 NZD

A
Cheapest Retailer
-
$5,800 NZD
B+
Retailer 2
-
$6,032 NZD
View
B+
Retailer 3
-
$6,644 NZD
View
B+
Retailer 4
-
$6,685 NZD
View
B+
Retailer 5
-
$6,893 NZD
View
B+
Retailer 6
-
$7,158 NZD
View
B
Retailer 7
-
$7,948 NZD
View
B
Retailer 8
-
$11,525 NZD
View
Most Expensive
B
NZ Jewellers
472a3a6f-37ec-4efc-8c1b-ed4c08033d22 · Nov 5
$12,007 NZD
$6,656 USD
View
8 more retailers have this diamond
Prices start from $5,800 NZDSave up to $6,207 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
1.30ct Marquise
$5,800 NZD