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Cushion|Natural|GIA

1.00ct K SI2 Cushion Natural Diamond

EX • K/SI2 • GIA 6551213732

Certificate GIA 6551213732

Diamond specifications and retailer prices

From £552 GBP
As of November 6, 2026
Save £229 GBP (29%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: £781 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 6551213732. Listed at 6 retailers as of November 6, 2026, with prices from £552 to £781, a £229 spread on the same certified stone. GemTrove lists it at £781. 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
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6551213732
Dimensions5.61 × 5.38 × 3.72 mm
L/W Ratio1.04
Top View
5.61 mm5.38 mm1.00 ctK / SI2
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 6551213732
Side View
Table 61.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 69.1%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 6
Current: £781 GBP|Low: £498 GBP|High: £781 GBP|Avg: £638 GBP
GemTrove
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 6, 2026
Retailer 6£552 GBP
Retailer 5£560 GBP
Retailer 3£610 GBP
Retailer 4£631 GBP
Retailer 2£654 GBP
GemTrove£781 GBP

41 data points across 6 retailers

6 retailers£552 GBP to £781 GBP

A
Cheapest Retailer
-
£552 GBP
A
Retailer 2
-
£560 GBP
View
Final sale: no returns
A
Retailer 3
-
£610 GBP
View
A
Retailer 4
-
£631 GBP
View
A
Retailer 5
-
£654 GBP
View
Most Expensive
B+
GemTrove
GT-N-00979289-98 · Nov 6
£781 GBP
A$1,608 AUD
View
5 more retailers have this diamond
Prices start from £552 GBPSave up to £229 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
£552 GBP