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Marquise|Natural|IGI

1.50ct K SI2 Marquise Natural Diamond

VG • K/SI2 • IGI 790690779

Shape and cutting style on the report: Marquise brilliant

Certificate IGI 790690779

Diamond specifications and retailer prices

From $3,592 SGD
As of November 6, 2026
Save $3,640 SGD (50%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $7,556 SGD at NZ Jewellers · As of October 24, 2026
View at NZ Jewellers

About this 1.5ct natural marquise diamond

This 1.5ct natural marquise sits in the one-and-a-half to two carat band, graded K colour (faint-tinted) and SI2 clarity (slightly-included), with a very-good cut grade and certified by IGI 790690779. Listed at 11 retailers as of November 4, 2026, with a 101% 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

1.50
Carat
K
Colour
SI2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.5°
Pavilion angle40.4°
OriginNatural
Grading LabIGI
CertificateIGI 790690779
Dimensions11.44 × 5.91 × 3.76 mm
L/W Ratio1.94
Girdle conditionFaceted
Culet sizePointed
Top View
11.44 mm5.91 mm1.50 ctK / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 790690779
Side View
Table 64.0%Crown 39.5°Girdle: STK-THKPavilion 40.4°Culet: NoneDepth 63.6%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $7,556 SGD|Low: $3,592 SGD|High: $7,556 SGD|Avg: $5,065 SGD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 2$3,592 SGD
Retailer 10$3,850 SGD
Retailer 3$4,322 SGD
Retailer 6$4,337 SGD
Retailer 7$4,337 SGD
Retailer 8$4,504 SGD
Retailer 9$5,005 SGD
Retailer 4$5,048 SGD
Retailer 5$7,232 SGD
NZ Jewellers$7,556 SGD

42 data points across 10 retailers

11 retailers$3,592 SGD to $7,232 SGD

A
Cheapest Retailer
-
$3,592 SGD
B+
Retailer 2
-
$3,850 SGD
View
B+
Retailer 3
-
$4,322 SGD
View
Retailer 4
-
$4,337 SGD
View
Price last confirmed 16 days ago
Retailer 5
-
$4,337 SGD
View
Price last confirmed 14 days ago
Retailer 6
-
$4,504 SGD
View
Price last confirmed 16 days ago
B+
Retailer 7
-
$4,521 SGD
View
Retailer 8
-
$5,005 SGD
View
Price last confirmed 15 days ago
B+
Retailer 9
-
$5,048 SGD
View
B+
Retailer 10
-
$7,232 SGD
View
Most Expensive
NZ Jewellers
affd979a-7dfe-4041-8de9-7174df3b9d9d · Oct 24
$7,556 SGD
$5,896 USD
View
Price last confirmed 13 days ago
10 more retailers have this diamond
Prices start from $3,592 SGDSave up to $3,640 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
1.50ct Marquise
$3,592 SGD