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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 $1,676 NZD
As of October 31, 2026
Save $2,409 NZD (59%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $4,085 NZD 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 $1,676 to $4,085, a $2,409 spread on the same certified stone. MOH London lists it at $4,085. 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
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: $4,085 NZD|Low: $1,672 NZD|High: $4,144 NZD|Avg: $2,552 NZD|-1.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 6, 2026
Retailer 4$1,676 NZD
Retailer 6$2,141 NZD
Retailer 5$2,235 NZD
Retailer 2$2,286 NZD
Retailer 7$2,293 NZD
Retailer 3$2,886 NZD
MOH London$4,085 NZD

44 data points across 7 retailers

8 retailers$1,676 NZD to $4,085 NZD

A
Cheapest Retailer
-
$1,676 NZD
B+
Retailer 2
-
$2,141 NZD
View
Retailer 3
-
$2,235 NZD
View
Price last confirmed 8 days ago
B+
Retailer 4
-
$2,286 NZD
View
B+
Retailer 5
-
$2,293 NZD
View
B+
Retailer 6
-
$2,479 NZD
View
B
Retailer 7
-
$2,886 NZD
View
Most Expensive
B
MOH London
6FAE7674B · Nov 4
$4,085 NZD
£1,783 GBP
View
7 more retailers have this diamond
Prices start from $1,676 NZDSave up to $2,409 NZD

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
$1,676 NZD