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Cushion|Natural|GIA

1.06ct K SI1 Cushion Natural Diamond

VG • K/SI1 • GIA 1559493546

Certificate GIA 1559493546

Diamond specifications and retailer prices

From £728 GBP
As of November 6, 2026
Save £715 GBP (50%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: £1,443 GBP at MOH London · As of November 4, 2026
View at MOH London

About this 1.06ct natural cushion diamond

This 1.06ct 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 stated by the retailer rather than the lab and certified by GIA 1559493546. Listed at 4 retailers as of November 4, 2026, with prices from £728 to £1,443, a £715 spread on the same certified stone. MOH London lists it at £1,443. 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

1.06
Carat
K
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1559493546
Dimensions5.76 × 5.55 × 3.88 mm
L/W Ratio1.04
Key to symbols
Crystal, Cloud
Top View
5.76 mm5.55 mm1.06 ctK / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1559493546
Side View
Table 63.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 69.9%

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: Nov 6
Current: £1,443 GBP|Low: £650 GBP|High: £1,646 GBP|Avg: £1,083 GBP|-11.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
November 6, 2026
Retailer 4£728 GBP
Retailer 3£911 GBP
Retailer 2£1,067 GBP
MOH London£1,443 GBP

28 data points across 4 retailers

4 retailers£728 GBP to £1,443 GBP

B+
Cheapest Retailer
-
£728 GBP
Final sale: no returns
A
Retailer 2
-
£911 GBP
View
B+
Retailer 3
-
£1,067 GBP
View
Most Expensive
B
MOH London
77C1DF886 · Nov 4
£1,443 GBP
View
3 more retailers have this diamond
Prices start from £728 GBPSave up to £715 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.

A
1.06ct Cushion
£728 GBP