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Marquise|Natural|IGI

1.50ct L SI1 Marquise Natural Diamond

VG • L/SI1 • IGI 512234554

Shape and cutting style on the report: Marquise brilliant

Certificate IGI 512234554

Diamond specifications and retailer prices

From $4,150 SGD
As of November 6, 2026
Save $1,701 SGD (29%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $5,851 SGD at Cape Diamonds · As of November 5, 2026
View at Cape Diamonds

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 512234554. Listed at 8 retailers as of November 5, 2026, with prices from $4,150 to $5,851, a $1,701 spread on the same certified stone. Cape Diamonds lists it at $5,851. 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
PolishVery Good
SymmetryGood
FluorescenceFaint
Crown angle45.4°
Pavilion angle30.3°
OriginNatural
Grading LabIGI
CertificateIGI 512234554
Dimensions10.58 × 6.21 × 3.32 mm
L/W Ratio1.70
Girdle conditionFaceted
Culet sizePointed
Top View
10.58 mm6.21 mm1.50 ctL / SI1
OriginNatural
CutVery Good
PolishVery Good
SymmetryGood
FluorescenceFaint
CertificateIGI 512234554
Side View
Table 66.0%Crown 45.4°Girdle: STK-VTKPavilion 30.3°Culet: NoneDepth 53.5%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $5,851 SGD|Low: $3,496 SGD|High: $5,892 SGD|Avg: $4,653 SGD|+2.6%
Cape Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 7, 2026
Retailer 4$3,505 SGD
Retailer 5$4,150 SGD
Retailer 6$4,255 SGD
Retailer 2$4,401 SGD
Retailer 3$5,611 SGD
Cape Diamonds$5,851 SGD

42 data points across 6 retailers

8 retailers$4,150 SGD to $5,851 SGD

Retailer 1
-
$3,505 SGD
Price last confirmed 7 days ago
B
Retailer 2
-
$4,150 SGD
View
B
Retailer 3
-
$4,255 SGD
View
B
Retailer 4
-
$4,401 SGD
View
B
Retailer 5
-
$4,595 SGD
View
B
Retailer 6
-
$4,980 SGD
View
B
Retailer 7
-
$5,611 SGD
View
Most Expensive
B
Cape Diamonds
cert_512234554 · Nov 5
$5,851 SGD
ZAR 73,754 ZAR
View
7 more retailers have this diamond
Prices start from $4,150 SGDSave up to $1,701 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
$4,150 SGD