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Cushion|Natural|IGI

0.51ct K SI2 Cushion Natural Diamond

VG • K/SI2 • IGI 749531710

Shape and cutting style on the report: Square cushion modified brilliant

Certificate IGI 749531710

Diamond specifications and retailer prices

From HK$1,959 HKD
As of November 6, 2026
Save HK$4,311 HKD (69%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: HK$6,271 HKD at MOH London · As of November 4, 2026
View at MOH London

About this 0.51ct natural cushion diamond

This 0.51ct natural cushion sits in the half to three-quarter carat band, graded K colour (faint-tinted) and SI2 clarity (slightly-included), with a very-good cut grade and certified by IGI 749531710. Listed at 5 retailers as of November 4, 2026, with prices from HK$1,959 to HK$6,271, a HK$4,311 spread on the same certified stone. MOH London lists it at HK$6,271. 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

0.51
Carat
K
Colour
SI2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle39.3°
Pavilion angle38.5°
OriginNatural
Grading LabIGI
CertificateIGI 749531710
Dimensions4.46 × 4.35 × 3.22 mm
L/W Ratio1.03
Girdle conditionFaceted
Culet sizeNone
Top View
4.46 mm4.35 mm0.51 ctK / SI2
OriginNatural
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI 749531710
Side View
Table 63.0%Crown 39.3°Girdle: THK-VTKPavilion 38.5°Culet: NoneDepth 74.0%

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$6,271 HKD|Low: HK$1,959 HKD|High: HK$6,500 HKD|Avg: HK$4,173 HKD|-2.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 6, 2026
Retailer 2HK$1,959 HKD
Retailer 4HK$3,738 HKD
Retailer 5HK$3,738 HKD
Retailer 3HK$5,008 HKD
MOH LondonHK$6,271 HKD

44 data points across 5 retailers

5 retailersHK$1,959 HKD to HK$6,271 HKD

A
Cheapest Retailer
-
HK$1,959 HKD
B+
Retailer 2
-
HK$3,738 HKD
View
B+
Retailer 3
-
HK$3,738 HKD
View
B
Retailer 4
-
HK$5,008 HKD
View
Most Expensive
B
MOH London
C8F3922F8 · Nov 4
HK$6,271 HKD
£630 GBP
View
4 more retailers have this diamond
Prices start from HK$1,959 HKDSave up to HK$4,311 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
0.51ct Cushion
HK$1,959 HKD