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Marquise|Natural|IGI

1.51ct J SI2 Marquise Natural Diamond

VG • J/SI2 • IGI 803677736

Shape and cutting style on the report: Marquise brilliant

Certificate IGI 803677736

Diamond specifications and retailer prices

From $2,506 SGD
As of November 5, 2026
Save $2,682 SGD (52%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $5,187 SGD at Wholesale Diamonds Direct · As of November 6, 2026
View at Wholesale Diamonds Direct

About this 1.51ct natural marquise diamond

This 1.51ct natural marquise sits in the one-and-a-half to two carat band, graded J colour (near-colourless) and SI2 clarity (slightly-included), with a very-good cut grade and certified by IGI 803677736. Listed at 6 retailers as of November 5, 2026, with prices from $2,506 to $5,187, a $2,682 spread on the same certified stone. Wholesale Diamonds Direct lists it at $5,187. 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

1.51
Carat
J
Colour
SI2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle43.9°
Pavilion angle39.2°
OriginNatural
Grading LabIGI
CertificateIGI 803677736
Dimensions10.72 × 5.79 × 3.81 mm
L/W Ratio1.85
Girdle conditionFaceted
Top View
10.72 mm5.79 mm1.51 ctJ / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 803677736
Side View
Table 60.0%Crown 43.9°Girdle: STK-THKPavilion 39.2°Culet: NoneDepth 65.8%

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 5
Current: $3,017 SGD|Low: $2,491 SGD|High: $5,914 SGD|Avg: $3,826 SGD|-13.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Wholesale Diamonds Direct
November 6, 2026
Retailer 2$2,506 SGD
Retailer 7$2,529 SGD
Retailer 1$3,017 SGD
Retailer 3$3,025 SGD
Retailer 4$3,776 SGD
Retailer 8$3,918 SGD
Retailer 5$4,086 SGD
Retailer 6$4,937 SGD
Wholesale Diamonds Direct$5,187 SGD

31 data points across 9 retailers

6 retailers$2,506 SGD to $5,187 SGD

A
Cheapest Retailer
-
$2,506 SGD
A
Retailer 2
-
$3,017 SGD
View
A
Retailer 3
-
$3,025 SGD
View
B+
Retailer 4
-
$3,776 SGD
View
B+
Retailer 5
-
$3,918 SGD
View
Most Expensive
B+
Wholesale Diamonds Direct
262936441 · Nov 6
$5,187 SGD
$4,047 USD
View
5 more retailers have this diamond
Prices start from $2,506 SGDSave up to $2,682 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
1.51ct Marquise
$2,506 SGD