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Marquise|Natural|IGI

1.51ct J SI1 Marquise Natural Diamond

VG • J/SI1 • IGI 642438037

Shape and cutting style on the report: Marquise brilliant

Certificate IGI 642438037

Diamond specifications and retailer prices

From €3,338 EUR
As of November 6, 2026
Save €3,715 EUR (53%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: €7,054 EUR at MOH London · As of November 4, 2026
View at MOH London

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 SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI 642438037. Listed at 7 retailers as of November 4, 2026, with prices from €3,338 to €7,054, a €3,715 spread on the same certified stone. MOH London lists it at €7,054. 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
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.4°
Pavilion angle38.6°
OriginNatural
Grading LabIGI
CertificateIGI 642438037
Dimensions11.87 × 6.14 × 3.58 mm
L/W Ratio1.93
Girdle conditionFaceted
Top View
11.87 mm6.14 mm1.51 ctJ / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 642438037
Side View
Table 62.0%Crown 33.4°Girdle: STK-THKPavilion 38.6°Culet: NoneDepth 58.3%

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 6
Current: €7,054 EUR|Low: €3,338 EUR|High: €7,158 EUR|Avg: €4,813 EUR|-0.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 6, 2026
Retailer 2€3,338 EUR
Retailer 8€4,108 EUR
Retailer 3€4,178 EUR
Retailer 5€4,264 EUR
Retailer 4€4,441 EUR
Retailer 7€4,740 EUR
Retailer 6€5,124 EUR
MOH London€7,054 EUR

44 data points across 8 retailers

7 retailers€3,338 EUR to €7,054 EUR

A
Cheapest Retailer
-
€3,338 EUR
B+
Retailer 2
-
€4,178 EUR
View
B+
Retailer 3
-
€4,264 EUR
View
B+
Retailer 4
-
€4,441 EUR
View
B+
Retailer 5
-
€4,740 EUR
View
B+
Retailer 6
-
€5,124 EUR
View
Most Expensive
B
MOH London
3A37C3C9F · Nov 4
€7,054 EUR
£6,201 GBP
View
6 more retailers have this diamond
Prices start from €3,338 EURSave up to €3,715 EUR

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
€3,338 EUR