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Cushion|Natural|GIA

1.00ct K SI2 Cushion Natural Diamond

EX • K/SI2 • GIA 2546158471

Certificate GIA 2546158471

Diamond specifications and retailer prices

From £529 GBP
As of November 6, 2026
Save £242 GBP (31%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: £771 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 SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2546158471. Listed at 6 retailers as of November 6, 2026, with prices from £529 to £771, a £242 spread on the same certified stone. GemTrove lists it at £771. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.00
Carat
K
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2546158471
Dimensions5.53 × 5.39 × 3.75 mm
L/W Ratio1.03
Top View
5.53 mm5.39 mm1.00 ctK / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2546158471
Side View
Table 63.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 69.5%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 6
Current: £771 GBP|Low: £494 GBP|High: £771 GBP|Avg: £624 GBP
GemTrove
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 6, 2026
Retailer 6£529 GBP
Retailer 5£536 GBP
Retailer 3£585 GBP
Retailer 4£606 GBP
Retailer 2£623 GBP
GemTrove£771 GBP

41 data points across 6 retailers

6 retailers£529 GBP to £771 GBP

A
Cheapest Retailer
-
£529 GBP
A
Retailer 2
-
£536 GBP
View
Final sale: no returns
A
Retailer 3
-
£585 GBP
View
A
Retailer 4
-
£606 GBP
View
A
Retailer 5
-
£623 GBP
View
Most Expensive
B+
GemTrove
GT-N-00979218-98 · Nov 6
£771 GBP
A$1,588 AUD
View
5 more retailers have this diamond
Prices start from £529 GBPSave up to £242 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
£529 GBP