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Cushion|Natural|IGI

1.51ct I SI2 Cushion Natural Diamond

VG • I/SI2 • IGI 729536826

Shape and cutting style on the report: Marquise brilliant

Certificate IGI 729536826

Diamond specifications and retailer prices

From HK$31,296 HKD
$3,989 USD
As of November 1, 2026
Save HK$25,867 HKD (45%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: HK$57,164 HKD at MOH London · As of November 1, 2026
View at MOH London

About this 1.51ct natural cushion diamond

This 1.51ct natural cushion sits in the one-and-a-half to two carat band, graded I colour (near-colourless) and SI2 clarity (slightly-included), with a very-good cut grade and certified by IGI 729536826. Listed at 11 retailers as of November 1, 2026, with prices from HK$31,296 to HK$57,164, a HK$25,867 spread on the same certified stone. MOH London lists it at HK$57,164. 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
I
Colour
SI2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle37.5°
Pavilion angle41.4°
OriginNatural
Grading LabIGI
CertificateIGI 729536826
Dimensions10.88 × 6.05 × 3.91 mm
L/W Ratio1.80
Girdle conditionFaceted
Culet sizePointed
Top View
10.88 mm6.05 mm1.51 ctI / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI 729536826
Side View
Table 63.0%Crown 37.5°Girdle: MED-THKPavilion 41.4°Culet: NoneDepth 64.6%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: HK$57,164 HKD|Low: HK$21,393 HKD|High: HK$66,804 HKD|Avg: HK$39,423 HKD|-0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 2, 2026
Retailer 4HK$21,393 HKD
Retailer 9HK$31,296 HKD
Retailer 12HK$31,697 HKD
Retailer 11HK$31,987 HKD
Retailer 10HK$33,125 HKD
Retailer 2HK$35,009 HKD
Retailer 6HK$35,602 HKD
Retailer 7HK$35,894 HKD
Retailer 8HK$37,066 HKD
Retailer 5HK$40,613 HKD
MOH LondonHK$57,164 HKD
Retailer 3HK$66,804 HKD

13 data points across 12 retailers

11 retailersHK$31,296 HKD to HK$57,164 HKD

B+
Cheapest Retailer
-
HK$31,296 HKD
$3,989 USD
B+
Retailer 2
-
HK$31,697 HKD
$4,040 USD
View
B+
Retailer 3
-
HK$31,987 HKD
$4,077 USD
View
B+
Retailer 4
-
HK$33,125 HKD
$4,222 USD
View
Final sale: no returns
B+
Retailer 5
-
HK$35,009 HKD
£3,514 GBP
View
B+
Retailer 6
-
HK$35,602 HKD
$4,538 USD
View
B+
Retailer 7
-
HK$35,894 HKD
$4,575 USD
View
B+
Retailer 8
-
HK$35,894 HKD
$4,575 USD
View
B+
Retailer 9
-
HK$37,066 HKD
$4,724 USD
View
B+
Retailer 10
-
HK$40,613 HKD
€4,930 EUR
View
Most Expensive
B
MOH London
B4A56073B · Nov 1
HK$57,164 HKD
£5,737 GBP
View
10 more retailers have this diamond
Prices start from HK$31,296 HKDSave up to HK$25,867 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.

B+
1.51ct Cushion
HK$31,296 HKD