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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 $1,167 AUD
As of November 6, 2026
Save $1,034 AUD (47%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $2,201 AUD 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 $1,167 to $2,201, a $1,034 spread on the same certified stone. MOH London lists it at $2,201. 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: $2,201 AUD|Low: $1,166 AUD|High: $2,231 AUD|Avg: $1,405 AUD|-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 2$1,167 AUD
Retailer 6$1,204 AUD
Retailer 5$1,208 AUD
Retailer 10$1,220 AUD
Retailer 7$1,239 AUD
Retailer 8$1,374 AUD
Retailer 9$1,396 AUD
Retailer 4$1,468 AUD
Retailer 3$1,479 AUD
MOH London$2,201 AUD

43 data points across 10 retailers

10 retailers$1,167 AUD to $2,201 AUD

A
Cheapest Retailer
-
$1,167 AUD
Retailer 2
-
$1,204 AUD
View
Price last confirmed 8 days ago
B+
Retailer 3
-
$1,208 AUD
View
B+
Retailer 4
-
$1,220 AUD
View
B+
Retailer 5
-
$1,239 AUD
View
B+
Retailer 6
-
$1,374 AUD
View
B+
Retailer 7
-
$1,396 AUD
View
B+
Retailer 8
-
$1,468 AUD
View
B+
Retailer 9
-
$1,479 AUD
View
Most Expensive
B+
MOH London
103165640 · Nov 4
$2,201 AUD
£1,191 GBP
View
9 more retailers have this diamond
Prices start from $1,167 AUDSave up to $1,034 AUD

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
$1,167 AUD