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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 HK$29,210 HKD
As of November 6, 2026
Save HK$32,512 HKD (53%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: HK$61,722 HKD 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 HK$29,210 to HK$61,722, a HK$32,512 spread on the same certified stone. MOH London lists it at HK$61,722. 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
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: HK$61,722 HKD|Low: HK$29,210 HKD|High: HK$62,637 HKD|Avg: HK$42,118 HKD|-0.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 6, 2026
Retailer 2HK$29,210 HKD
Retailer 8HK$35,950 HKD
Retailer 3HK$36,561 HKD
Retailer 5HK$37,314 HKD
Retailer 4HK$38,858 HKD
Retailer 7HK$41,476 HKD
Retailer 6HK$44,838 HKD
MOH LondonHK$61,722 HKD

44 data points across 8 retailers

7 retailersHK$29,210 HKD to HK$61,722 HKD

A
Cheapest Retailer
-
HK$29,210 HKD
B+
Retailer 2
-
HK$36,561 HKD
View
B+
Retailer 3
-
HK$37,314 HKD
View
B+
Retailer 4
-
HK$38,858 HKD
View
B+
Retailer 5
-
HK$41,476 HKD
View
B+
Retailer 6
-
HK$44,838 HKD
View
Most Expensive
B
MOH London
3A37C3C9F · Nov 4
HK$61,722 HKD
£6,201 GBP
View
6 more retailers have this diamond
Prices start from HK$29,210 HKDSave up to HK$32,512 HKD

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
HK$29,210 HKD