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Cushion|Natural|GIA

1.06ct K SI1 Cushion Natural Diamond

VG • K/SI1 • GIA 3555490385

Certificate GIA 3555490385

Diamond specifications and retailer prices

From £793 GBP
As of November 6, 2026
Save £780 GBP (50%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: £1,572 GBP at MOH London · As of November 2, 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 3555490385. Listed at 4 retailers as of November 2, 2026, with prices from £793 to £1,572, a £780 spread on the same certified stone. MOH London lists it at £1,572. 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
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 3555490385
Dimensions6.60 × 5.17 × 3.59 mm
L/W Ratio1.28
Key to symbols
Cloud, Crystal, Feather, Needle, Indented Natural
Top View
6.60 mm5.17 mm1.06 ctK / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 3555490385
Side View
Table 64.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 69.3%

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: Nov 6
Current: £1,572 GBP|Low: £707 GBP|High: £1,789 GBP|Avg: £1,186 GBP|-11.2%
MOH London
Retailer 2
Retailer 3
Retailer 4
November 6, 2026
Retailer 4£793 GBP
Retailer 3£973 GBP
Retailer 2£1,195 GBP
MOH London£1,572 GBP

27 data points across 4 retailers

4 retailers£793 GBP to £1,572 GBP

B+
Cheapest Retailer
-
£793 GBP
Final sale: no returns
A
Retailer 2
-
£973 GBP
View
B+
Retailer 3
-
£1,195 GBP
View
Most Expensive
B
MOH London
20AF772B1 · Nov 2
£1,572 GBP
View
3 more retailers have this diamond
Prices start from £793 GBPSave up to £780 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
£793 GBP