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Cushion|Natural|GIA

1.00ct H SI2 Cushion Natural Diamond

EX • H/SI2 • GIA 7556596257

Certificate GIA 7556596257

Diamond specifications and retailer prices

From £719 GBP
As of November 6, 2026
Save £3,344 GBP (82%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: £5,720 GBP at MOH London · As of November 2, 2026
View at MOH London

About this 1ct natural cushion diamond

This 1ct natural cushion sits in the classic one-carat band, graded H colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 7556596257. Listed at 8 retailers as of November 2, 2026, with a 465% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
H
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 7556596257
Dimensions5.75 × 5.23 × 3.65 mm
L/W Ratio1.10
Culet sizeNone
Top View
5.75 mm5.23 mm1.00 ctH / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 7556596257
Side View
Table 61.0%CrownGirdle: THK-ETKPavilionCulet: NoneDepth 69.9%

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: £5,720 GBP|Low: £688 GBP|High: £5,720 GBP|Avg: £1,641 GBP
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 6, 2026
Retailer 2£719 GBP
Retailer 3£1,243 GBP
Retailer 6£3,095 GBP
Retailer 7£3,234 GBP
Retailer 8£3,316 GBP
Retailer 4£3,551 GBP
Retailer 5£4,064 GBP
MOH London£5,720 GBP

41 data points across 8 retailers

8 retailers£719 GBP to £4,064 GBP

A
Cheapest Retailer
-
£719 GBP
A
Retailer 2
-
£1,243 GBP
View
B
Retailer 3
-
£3,095 GBP
View
B
Retailer 4
-
£3,234 GBP
View
B
Retailer 5
-
£3,316 GBP
View
Final sale: no returns
B
Retailer 6
-
£3,551 GBP
View
B
Retailer 7
-
£4,064 GBP
View
Most Expensive
MOH London
78174C04F · Nov 2
£5,720 GBP
View
Price under review
7 more retailers have this diamond
Prices start from £719 GBPSave up to £3,344 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
£719 GBP