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Cushion|Natural|IGI

1.00ct K SI2 Cushion Natural Diamond

VG • K/SI2 • IGI 689547657

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI 689547657

Diamond specifications and retailer prices

From $1,352 AUD
As of October 31, 2026
Save $1,944 AUD (59%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $3,296 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 SI2 clarity (slightly-included), with a very-good cut grade and certified by IGI 689547657. Listed at 8 retailers as of October 31, 2026, with prices from $1,352 to $3,296, a $1,944 spread on the same certified stone. MOH London lists it at $3,296. 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
SI2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle36.2°
Pavilion angle39.4°
OriginNatural
Grading LabIGI
CertificateIGI 689547657
Dimensions5.86 × 5.19 × 3.96 mm
L/W Ratio1.13
Girdle conditionFaceted
Culet sizePointed
Top View
5.86 mm5.19 mm1.00 ctK / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI 689547657
Side View
Table 64.0%Crown 36.2°Girdle: MED-VTKPavilion 39.4°Culet: NoneDepth 76.3%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: $3,296 AUD|Low: $1,349 AUD|High: $3,344 AUD|Avg: $2,059 AUD|-1.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 6, 2026
Retailer 4$1,352 AUD
Retailer 6$1,728 AUD
Retailer 5$1,803 AUD
Retailer 2$1,844 AUD
Retailer 7$1,850 AUD
Retailer 3$2,329 AUD
MOH London$3,296 AUD

44 data points across 7 retailers

8 retailers$1,352 AUD to $3,296 AUD

A
Cheapest Retailer
-
$1,352 AUD
B+
Retailer 2
-
$1,728 AUD
View
Retailer 3
-
$1,803 AUD
View
Price last confirmed 8 days ago
B+
Retailer 4
-
$1,844 AUD
View
B+
Retailer 5
-
$1,850 AUD
View
B+
Retailer 6
-
$2,000 AUD
View
B
Retailer 7
-
$2,329 AUD
View
Most Expensive
B
MOH London
6FAE7674B · Nov 4
$3,296 AUD
£1,783 GBP
View
7 more retailers have this diamond
Prices start from $1,352 AUDSave up to $1,944 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
$1,352 AUD