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 $2,839 USD
As of November 7, 2026
Save $1,728 USD (38%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $6,074 USD 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
Color
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
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 7
Current: $6,074 USD|Low: $2,442 USD|High: $6,074 USD|Avg: $3,431 USD
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$2,442 USD
Retailer 4$2,461 USD
Retailer 10$2,839 USD
Retailer 8$2,885 USD
Retailer 2$2,936 USD
Retailer 11$3,009 USD
Retailer 9$3,035 USD
Retailer 3$3,082 USD
Retailer 5$3,467 USD
Retailer 6$3,814 USD
Retailer 7$4,567 USD
NZ Jewellers$6,074 USD

23 data points across 12 retailers

9 retailers$2,839 USD to $4,567 USD

B+
Cheapest Retailer
-
$2,839 USD
B+
Retailer 2
-
$2,885 USD
View
Final sale: no returns
B+
Retailer 3
-
$2,936 USD
View
B+
Retailer 4
-
$3,009 USD
View
B+
Retailer 5
-
$3,035 USD
View
B+
Retailer 6
-
$3,467 USD
View
B
Retailer 7
-
$3,814 USD
View
B
Retailer 8
-
$4,567 USD
View
Most Expensive
NZ Jewellers
c60c4ed0-f5ea-4cfd-8473-4325fcca9ee7 · Sep 25
$6,074 USD
View
Price last confirmed 43 days ago
8 more retailers have this diamond
Prices start from $2,839 USDSave up to $1,728 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
$2,839 USD