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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 $4,120 SGD
As of November 1, 2026
Save $4,410 SGD (52%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $8,530 SGD 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 $4,120 to $8,530, a $4,410 spread on the same certified stone. NZ Jewellers lists it at $8,530. 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: $8,530 SGD|Low: $4,120 SGD|High: $8,773 SGD|Avg: $5,790 SGD|-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$4,120 SGD
Retailer 4$4,286 SGD
Retailer 9$4,720 SGD
Retailer 2$4,750 SGD
Retailer 5$4,897 SGD
Retailer 7$5,085 SGD
Retailer 3$5,647 SGD
Retailer 6$8,188 SGD
NZ Jewellers$8,530 SGD

32 data points across 9 retailers

9 retailers$4,120 SGD to $8,530 SGD

A
Cheapest Retailer
-
$4,120 SGD
B+
Retailer 2
-
$4,286 SGD
View
B+
Retailer 3
-
$4,720 SGD
View
B+
Retailer 4
-
$4,750 SGD
View
B+
Retailer 5
-
$4,897 SGD
View
B+
Retailer 6
-
$5,085 SGD
View
B
Retailer 7
-
$5,647 SGD
View
B
Retailer 8
-
$8,188 SGD
View
Most Expensive
B
NZ Jewellers
472a3a6f-37ec-4efc-8c1b-ed4c08033d22 · Nov 5
$8,530 SGD
$6,656 USD
View
8 more retailers have this diamond
Prices start from $4,120 SGDSave up to $4,410 SGD

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
$4,120 SGD