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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 $3,238 USD
As of November 6, 2026
Save $1,327 USD (29%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $4,565 USD 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 $3,238 to $4,565, a $1,327 spread on the same certified stone. Cape Diamonds lists it at $4,565. 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
Color
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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Price History

Last verified: Nov 6
Current: $4,565 USD|Low: $2,728 USD|High: $4,597 USD|Avg: $3,631 USD|+2.6%
Cape Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 7, 2026
Retailer 4$2,735 USD
Retailer 5$3,238 USD
Retailer 6$3,320 USD
Retailer 2$3,434 USD
Retailer 3$4,378 USD
Cape Diamonds$4,565 USD

42 data points across 6 retailers

8 retailers$3,238 USD to $4,565 USD

Retailer 1
-
$2,735 USD
Price last confirmed 7 days ago
B
Retailer 2
-
$3,238 USD
View
B
Retailer 3
-
$3,320 USD
View
B
Retailer 4
-
$3,434 USD
View
B
Retailer 5
-
$3,585 USD
View
B
Retailer 6
-
$3,886 USD
View
B
Retailer 7
-
$4,378 USD
View
Most Expensive
B
Cape Diamonds
cert_512234554 · Nov 5
$4,565 USD
ZAR 73,754 ZAR
View
7 more retailers have this diamond
Prices start from $3,238 USDSave up to $1,327 USD

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
$3,238 USD