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Marquise|Natural|IGI

0.51ct K SI2 Marquise Natural Diamond

GD • K/SI2 • IGI 201623068

Shape and cutting style on the report: Marquise brilliant

Certificate IGI 201623068

Diamond specifications and retailer prices

From HK$6,897 HKD
As of November 6, 2026
Save HK$3,694 HKD (35%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: HK$10,591 HKD at MOH London · As of November 4, 2026
View at MOH London

About this 0.51ct natural marquise diamond

This 0.51ct natural marquise sits in the half to three-quarter carat band, graded K colour (faint-tinted) and SI2 clarity (slightly-included), with a standard cut grade and certified by IGI 201623068. Listed at 2 retailers as of November 4, 2026, with prices from HK$6,897 to HK$10,591, a HK$3,694 spread on the same certified stone. MOH London lists it at HK$10,591. 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
Good
Cut

Specifications

CutGood
PolishGood
SymmetryGood
FluorescenceFaint
Crown angle30.7°
Pavilion angle42.2°
OriginNatural
Grading LabIGI
CertificateIGI 201623068
Dimensions6.81 × 4.24 × 2.91 mm
L/W Ratio1.61
Girdle conditionFaceted
Culet sizeMedium
Top View
6.81 mm4.24 mm0.51 ctK / SI2
OriginNatural
CutGood
PolishGood
SymmetryGood
FluorescenceFaint
CertificateIGI 201623068
Side View
Table 55.0%Crown 30.7°Girdle: THK-VTKPavilion 42.2°Culet: MediumDepth 68.6%

Caratlytics Score

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C
Average
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Price History

Last verified: Nov 6
Current: HK$10,591 HKD|Low: HK$5,894 HKD|High: HK$10,730 HKD|Avg: HK$7,814 HKD|-0.4%
MOH London
Retailer 2
Retailer 3
November 6, 2026
Retailer 3HK$5,894 HKD
Retailer 2HK$6,897 HKD
MOH LondonHK$10,591 HKD

21 data points across 3 retailers

2 retailersHK$6,897 HKD to HK$10,591 HKD

C
Cheapest Retailer
-
HK$6,897 HKD
Most Expensive
C
MOH London
5237B8E52 · Nov 4
HK$10,591 HKD
£1,064 GBP
View
1 more retailer has this diamond
Prices start from HK$6,897 HKDSave up to HK$3,694 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.

C
0.51ct Marquise
HK$6,897 HKD