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Cushion|Natural|GIA

1.00ct K IF Cushion Natural Diamond

GD • K/IF • GIA 1559212359

Certificate GIA 1559212359

Diamond specifications and retailer prices

From £790 GBP
As of November 6, 2026
Save £311 GBP (28%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: £1,101 GBP at GemTrove · As of November 6, 2026
View at GemTrove

About this 1ct natural cushion diamond

This 1ct natural cushion sits in the classic one-carat band, graded K colour (faint-tinted) and IF clarity (flawless or internally-flawless), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 1559212359. Listed at 7 retailers as of November 6, 2026, with prices from £790 to £1,101, a £311 spread on the same certified stone. GemTrove lists it at £1,101. 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
IF
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 1559212359
Dimensions5.51 × 5.33 × 3.80 mm
L/W Ratio1.03
Culet sizeNone
Top View
5.51 mm5.33 mm1.00 ctK / IF
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 1559212359
Side View
Table 61.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 71.2%

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: Nov 6
Current: £1,101 GBP|Low: £711 GBP|High: £1,101 GBP|Avg: £909 GBP
GemTrove
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 5, 2026
Retailer 7£790 GBP
Retailer 6£792 GBP
Retailer 3£826 GBP
Retailer 2£873 GBP
Retailer 5£905 GBP
Retailer 4£968 GBP
GemTrove£1,101 GBP

40 data points across 7 retailers

7 retailers£790 GBP to £1,101 GBP

A
Cheapest Retailer
-
£790 GBP
B+
Retailer 2
-
£792 GBP
View
Final sale: no returns
A
Retailer 3
-
£826 GBP
View
A
Retailer 4
-
£873 GBP
View
A
Retailer 5
-
£905 GBP
View
A
Retailer 6
-
£968 GBP
View
Most Expensive
B+
GemTrove
GT-N-00979291-98 · Nov 6
£1,101 GBP
A$2,268 AUD
View
6 more retailers have this diamond
Prices start from £790 GBPSave up to £311 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
1.00ct Cushion
£790 GBP