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Cushion|Natural|GIA

1.05ct K SI2 Cushion Natural Diamond

GD • K/SI2 • GIA 2257755434

Certificate GIA 2257755434

Diamond specifications and retailer prices

From £1,472 GBP
As of November 4, 2026
Save £685 GBP (32%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: £2,156 GBP at Yorxs · As of November 6, 2026
View at Yorxs

About this 1.05ct natural cushion diamond

This 1.05ct natural cushion sits in the classic one-carat band, graded K colour (faint-tinted) and SI2 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 2257755434. Listed at 7 retailers as of November 4, 2026, with prices from £1,472 to £2,156, a £685 spread on the same certified stone. Yorxs lists it at £2,156. 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
K
Colour
SI2
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2257755434
Dimensions6.21 × 5.65 × 3.81 mm
L/W Ratio1.10
Top View
6.21 mm5.65 mm1.05 ctK / SI2
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2257755434
Side View
Table 62.0%CrownGirdle: MED-STKPavilionCulet: NoneDepth 67.5%

Caratlytics Score

How it works →
B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: £1,472 GBP|Low: £1,424 GBP|High: £2,162 GBP|Avg: £1,687 GBP|+3.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Yorxs
November 6, 2026
Retailer 1£1,472 GBP
Retailer 3£1,485 GBP
Retailer 6£1,505 GBP
Retailer 4£1,576 GBP
Retailer 5£1,812 GBP
Retailer 2£1,830 GBP
Yorxs£2,156 GBP

25 data points across 7 retailers

7 retailers£1,472 GBP to £2,156 GBP

B
Cheapest Retailer
-
£1,472 GBP
B
Retailer 2
-
£1,485 GBP
View
B
Retailer 3
-
£1,505 GBP
View
B
Retailer 4
-
£1,576 GBP
View
B
Retailer 5
-
£1,812 GBP
View
B
Retailer 6
-
£1,830 GBP
View
Most Expensive
C
Yorxs
230053337 · Nov 6
£2,156 GBP
€2,749 EUR
View
6 more retailers have this diamond
Prices start from £1,472 GBPSave up to £685 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
1.05ct Cushion
£1,472 GBP