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Cushion|Natural|GIA

1.01ct H SI1 Cushion Natural Diamond

EX • H/SI1 • GIA 6551542090

Certificate GIA 6551542090

Diamond specifications and retailer prices

From £816 GBP
As of November 6, 2026
Save £799 GBP (49%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £1,615 GBP at MOH London · As of November 4, 2026
View at MOH London

About this 1.01ct natural cushion diamond

This 1.01ct natural cushion sits in the classic one-carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6551542090. Listed at 11 retailers as of November 4, 2026, with prices from £816 to £1,615, a £799 spread on the same certified stone. MOH London lists it at £1,615. 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

1.01
Carat
H
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6551542090
Dimensions5.99 × 5.69 × 3.92 mm
L/W Ratio1.05
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Feather, Cloud, Cavity, Needle
Top View
5.99 mm5.69 mm1.01 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6551542090
Side View
Table 65.0%CrownGirdle: STK-STKPavilionCulet: 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: £1,615 GBP|Low: £816 GBP|High: £1,967 GBP|Avg: £1,227 GBP|-17.9%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 5, 2026
Retailer 8£816 GBP
Retailer 7£846 GBP
Retailer 5£848 GBP
Retailer 11£956 GBP
Retailer 4£998 GBP
Retailer 10£1,006 GBP
Retailer 2£1,079 GBP
Retailer 6£1,100 GBP
Retailer 9£1,404 GBP
Retailer 3£1,447 GBP
MOH London£1,615 GBP

36 data points across 11 retailers

11 retailers£816 GBP to £1,615 GBP

A
Cheapest Retailer
-
£816 GBP
Final sale: no returns
A
Retailer 2
-
£846 GBP
View
A
Retailer 3
-
£848 GBP
View
Retailer 4
-
£956 GBP
View
Price last confirmed 11 days ago
A
Retailer 5
-
£998 GBP
View
Retailer 6
-
£1,006 GBP
View
Price last confirmed 9 days ago
A
Retailer 7
-
£1,079 GBP
View
A
Retailer 8
-
£1,100 GBP
View
A
Retailer 9
-
£1,404 GBP
View
Retailer 10
-
£1,447 GBP
View
Price last confirmed 33 days ago
Most Expensive
B+
MOH London
331A60AD6 · Nov 4
£1,615 GBP
View
10 more retailers have this diamond
Prices start from £816 GBPSave up to £799 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
1.01ct Cushion
£816 GBP