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Cushion|Natural|IGI

1.00ct M SI1 Cushion Natural Diamond

VG • M/SI1 • IGI 706537184

Shape and cutting style on the report: Square cushion modified brilliant

Certificate IGI 706537184

Diamond specifications and retailer prices

From £473 GBP
As of November 6, 2026
Save £421 GBP (47%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: £894 GBP at Yorxs · As of November 6, 2026
View at Yorxs

About this 1ct natural cushion diamond

This 1ct natural cushion sits in the classic one-carat band, graded M colour (faint-tinted) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI 706537184. Listed at 5 retailers as of November 6, 2026, with prices from £473 to £894, a £421 spread on the same certified stone. Yorxs lists it at £894. 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
M
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle37.7°
Pavilion angle32.2°
OriginNatural
Grading LabIGI
CertificateIGI 706537184
Dimensions5.35 × 5.22 × 3.91 mm
L/W Ratio1.02
Girdle conditionFaceted
Culet sizePointed
Top View
5.35 mm5.22 mm1.00 ctM / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI 706537184
Side View
Table 56.0%Crown 37.7°Girdle: THK-VTKPavilion 32.2°Culet: NoneDepth 74.9%

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 6
Current: £473 GBP|Low: £473 GBP|High: £914 GBP|Avg: £734 GBP|-7.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Yorxs
November 6, 2026
Retailer 1£473 GBP
Retailer 3£735 GBP
Retailer 4£766 GBP
Retailer 2£776 GBP
Yorxs£894 GBP

44 data points across 5 retailers

5 retailers£473 GBP to £894 GBP

B+
Cheapest Retailer
-
£473 GBP
B+
Retailer 2
-
£735 GBP
View
B+
Retailer 3
-
£766 GBP
View
B+
Retailer 4
-
£776 GBP
View
Most Expensive
B
Yorxs
6B39D7633 · Nov 6
£894 GBP
€1,139 EUR
View
4 more retailers have this diamond
Prices start from £473 GBPSave up to £421 GBP

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+
1.00ct Cushion
£473 GBP