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Marquise|Natural|IGI

1.50ct L SI1 Marquise Natural Diamond

VG • L/SI1 • IGI 783612437

Shape and cutting style on the report: Marquise brilliant

Certificate IGI 783612437

Diamond specifications and retailer prices

From $3,638 SGD
As of November 7, 2026
Save $2,215 SGD (38%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $7,784 SGD at NZ Jewellers · As of September 25, 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 L colour (faint-tinted) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI 783612437. Listed at 9 retailers as of November 6, 2026, with a 61% 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
L
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.7°
Pavilion angle37.9°
OriginNatural
Grading LabIGI
CertificateIGI 783612437
Dimensions11.29 × 5.79 × 3.71 mm
L/W Ratio1.95
Girdle conditionFaceted
Culet sizePointed
Top View
11.29 mm5.79 mm1.50 ctL / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 783612437
Side View
Table 53.0%Crown 38.7°Girdle: THN-STKPavilion 37.9°Culet: NoneDepth 64.1%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 7
Current: $7,784 SGD|Low: $3,130 SGD|High: $7,784 SGD|Avg: $4,397 SGD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 7, 2026
Retailer 12$3,130 SGD
Retailer 4$3,154 SGD
Retailer 10$3,638 SGD
Retailer 8$3,697 SGD
Retailer 2$3,763 SGD
Retailer 11$3,856 SGD
Retailer 9$3,890 SGD
Retailer 3$3,950 SGD
Retailer 5$4,443 SGD
Retailer 6$4,888 SGD
Retailer 7$5,853 SGD
NZ Jewellers$7,784 SGD

23 data points across 12 retailers

9 retailers$3,638 SGD to $5,853 SGD

B+
Cheapest Retailer
-
$3,638 SGD
B+
Retailer 2
-
$3,697 SGD
View
Final sale: no returns
B+
Retailer 3
-
$3,763 SGD
View
B+
Retailer 4
-
$3,856 SGD
View
B+
Retailer 5
-
$3,890 SGD
View
B+
Retailer 6
-
$4,443 SGD
View
B
Retailer 7
-
$4,888 SGD
View
B
Retailer 8
-
$5,853 SGD
View
Most Expensive
NZ Jewellers
c60c4ed0-f5ea-4cfd-8473-4325fcca9ee7 · Sep 25
$7,784 SGD
$6,074 USD
View
Price last confirmed 43 days ago
8 more retailers have this diamond
Prices start from $3,638 SGDSave up to $2,215 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.

B+
1.50ct Marquise
$3,638 SGD