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Cushion|Natural|IGI

1.05ct J SI1 Cushion Natural Diamond

VG • J/SI1 • IGI 706537180

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI 706537180

Diamond specifications and retailer prices

From $1,500 USD
A$2,308 AUD
As of November 2, 2026
Save $1,018 USD (40%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $2,518 USD at MOH London · As of November 1, 2026
View at MOH London

About this 1.05ct natural cushion diamond

This 1.05ct natural cushion sits in the classic one-carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI 706537180. Listed at 6 retailers as of November 1, 2026, with prices from $1,500 to $2,518, a $1,018 spread on the same certified stone. MOH London lists it at $2,518. 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

1.05
Carat
J
Color
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceFaint
Crown angle37.3°
Pavilion angle33.1°
OriginNatural
Grading LabIGI
CertificateIGI 706537180
Dimensions5.85 × 5.42 × 3.78 mm
L/W Ratio1.08
Girdle conditionFaceted
Culet sizePointed
Top View
5.85 mm5.42 mm1.05 ctJ / SI1
OriginNatural
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceFaint
CertificateIGI 706537180
Side View
Table 60.0%Crown 37.3°Girdle: STK-VTKPavilion 33.1°Culet: NoneDepth 69.7%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: $2,518 USD|Low: $1,498 USD|High: $2,634 USD|Avg: $1,764 USD|-4.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 2, 2026
Retailer 6$1,500 USD
Retailer 5$1,510 USD
Retailer 3$1,559 USD
Retailer 4$1,679 USD
Retailer 2$1,916 USD
MOH London$2,518 USD

41 data points across 6 retailers

6 retailers$1,500 USD to $2,518 USD

B+
Cheapest Retailer
-
$1,500 USD
A$2,308 AUD
B+
Retailer 2
-
$1,510 USD
View
B+
Retailer 3
-
$1,559 USD
£1,227 GBP
View
B+
Retailer 4
-
$1,679 USD
ZAR 27,117 ZAR
View
B
Retailer 5
-
$1,916 USD
€1,825 EUR
View
Most Expensive
B
MOH London
A57193373 · Nov 1
$2,518 USD
£1,983 GBP
View
5 more retailers have this diamond
Prices start from $1,500 USDSave up to $1,018 USD

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.

B+
1.05ct Cushion
$1,500 USD