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Cushion|Natural|IGI

1.00ct K SI1 Cushion Natural Diamond

VG • K/SI1 • IGI 808619901

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI 808619901

Diamond specifications and retailer prices

From HK$6,286 HKD
As of November 6, 2026
Save HK$5,569 HKD (47%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: HK$11,855 HKD at MOH London · As of November 4, 2026
View at MOH London

About this 1ct natural cushion diamond

This 1ct natural cushion sits in the classic one-carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI 808619901. Listed at 10 retailers as of November 4, 2026, with prices from HK$6,286 to HK$11,855, a HK$5,569 spread on the same certified stone. MOH London lists it at HK$11,855. 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

1.00
Carat
K
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceFaint
Crown angle40.8°
Pavilion angle28.3°
OriginNatural
Grading LabIGI
CertificateIGI 808619901
Dimensions5.54 × 5.03 × 3.65 mm
L/W Ratio1.10
Girdle conditionFaceted
Top View
5.54 mm5.03 mm1.00 ctK / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateIGI 808619901
Side View
Table 63.0%Crown 40.8°Girdle: THK-VTKPavilion 28.3°Culet: NoneDepth 72.6%

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$11,855 HKD|Low: HK$6,278 HKD|High: HK$12,014 HKD|Avg: HK$7,567 HKD|-0.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 2HK$6,286 HKD
Retailer 6HK$6,482 HKD
Retailer 5HK$6,505 HKD
Retailer 10HK$6,568 HKD
Retailer 7HK$6,670 HKD
Retailer 8HK$7,399 HKD
Retailer 9HK$7,516 HKD
Retailer 4HK$7,908 HKD
Retailer 3HK$7,963 HKD
MOH LondonHK$11,855 HKD

43 data points across 10 retailers

10 retailersHK$6,286 HKD to HK$11,855 HKD

A
Cheapest Retailer
-
HK$6,286 HKD
Retailer 2
-
HK$6,482 HKD
View
Price last confirmed 8 days ago
B+
Retailer 3
-
HK$6,505 HKD
View
B+
Retailer 4
-
HK$6,568 HKD
View
B+
Retailer 5
-
HK$6,670 HKD
View
B+
Retailer 6
-
HK$7,399 HKD
View
B+
Retailer 7
-
HK$7,516 HKD
View
B+
Retailer 8
-
HK$7,908 HKD
View
B+
Retailer 9
-
HK$7,963 HKD
View
Most Expensive
B+
MOH London
103165640 · Nov 4
HK$11,855 HKD
£1,191 GBP
View
9 more retailers have this diamond
Prices start from HK$6,286 HKDSave up to HK$5,569 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
1.00ct Cushion
HK$6,286 HKD