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Cushion|Natural|GIA

1.00ct H SI2 Cushion Natural Diamond

VG • H/SI2 • GIA 2566089377

Certificate GIA 2566089377

Diamond specifications and retailer prices

From £769 GBP
As of November 6, 2026
Save £1,028 GBP (57%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £1,797 GBP at MOH London · As of November 4, 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 very-good cut grade stated by the retailer rather than the lab and certified by GIA 2566089377. Listed at 13 retailers as of November 4, 2026, with prices from £769 to £1,797, a £1,028 spread on the same certified stone. MOH London lists it at £1,797. 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
H
Colour
SI2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2566089377
Dimensions6.49 × 5.00 × 3.45 mm
L/W Ratio1.30
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Feather, Indented Natural, Cloud, Needle
Top View
6.49 mm5.00 mm1.00 ctH / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2566089377
Side View
Table 67.0%CrownGirdle: THN-XTKPavilionCulet: NoneDepth 68.9%

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: £1,797 GBP|Low: £769 GBP|High: £1,824 GBP|Avg: £1,076 GBP|-1.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 6, 2026
Retailer 6£769 GBP
Retailer 10£883 GBP
Retailer 4£908 GBP
Retailer 3£927 GBP
Retailer 7£968 GBP
Retailer 2£997 GBP
Retailer 5£1,009 GBP
Retailer 11£1,044 GBP
Retailer 12£1,057 GBP
Retailer 9£1,106 GBP
Retailer 8£1,366 GBP
MOH London£1,797 GBP

28 data points across 12 retailers

13 retailers£769 GBP to £1,797 GBP

A
Cheapest Retailer
-
£769 GBP
A
Retailer 2
-
£883 GBP
View
A
Retailer 3
-
£908 GBP
View
Final sale: no returns
A
Retailer 4
-
£927 GBP
View
A
Retailer 5
-
£968 GBP
View
A
Retailer 6
-
£997 GBP
View
A
Retailer 7
-
£1,009 GBP
View
A
Retailer 8
-
£1,044 GBP
View
B+
Retailer 9
-
£1,057 GBP
View
B+
Retailer 10
-
£1,085 GBP
View
B+
Retailer 11
-
£1,106 GBP
View
B+
Retailer 12
-
£1,366 GBP
View
Most Expensive
B
MOH London
670316AEE · Nov 4
£1,797 GBP
View
12 more retailers have this diamond
Prices start from £769 GBPSave up to £1,028 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
£769 GBP