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Cushion|Natural|GIA

1.00ct H SI1 Cushion Natural Diamond

EX • H/SI1 • GIA 2567405496

Certificate GIA 2567405496

Diamond specifications and retailer prices

From £819 GBP
₹104,458 INR
As of November 1, 2026
Save £1,090 GBP (57%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £1,909 GBP at MOH London · As of November 1, 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 SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2567405496. Listed at 12 retailers as of November 1, 2026, with prices from £819 to £1,909, a £1,090 spread on the same certified stone. MOH London lists it at £1,909. 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
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40.29°
Pavilion angle34.71°
OriginNatural
Grading LabGIA
CertificateGIA 2567405496
Dimensions5.63 × 5.58 × 3.79 mm
L/W Ratio1.01
Culet sizeNone
Key to symbols
Crystal, Feather, Needle
Top View
5.63 mm5.58 mm1.00 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2567405496
Side View
Table 62.0%Crown 40.29°Girdle: MED-THKPavilion 34.71°Culet: NoneDepth 68.0%

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 1
Current: £1,909 GBP|Low: £819 GBP|High: £1,968 GBP|Avg: £1,226 GBP|-3.0%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 2, 2026
Retailer 7£819 GBP
Retailer 8£1,010 GBP
Retailer 3£1,037 GBP
Retailer 2£1,063 GBP
Retailer 6£1,100 GBP
Retailer 11£1,172 GBP
Retailer 9£1,191 GBP
Retailer 5£1,215 GBP
Retailer 10£1,345 GBP
Retailer 4£1,517 GBP
MOH London£1,909 GBP

25 data points across 11 retailers

12 retailers£819 GBP to £1,909 GBP

A
Cheapest Retailer
-
£819 GBP
₹104,458 INR
A
Retailer 2
-
£1,010 GBP
$1,353 USD
View
A
Retailer 3
-
£1,037 GBP
$1,390 USD
View
A
Retailer 4
-
£1,063 GBP
View
A
Retailer 5
-
£1,100 GBP
$1,474 USD
View
A
Retailer 6
-
£1,172 GBP
$1,570 USD
View
A
Retailer 7
-
£1,191 GBP
$1,596 USD
View
A
Retailer 8
-
£1,215 GBP
View
A
Retailer 9
-
£1,345 GBP
ZAR 29,112 ZAR
View
Retailer 10
-
£1,459 GBP
A$3,007 AUD
View
Price last confirmed 27 days ago
B+
Retailer 11
-
£1,517 GBP
€1,936 EUR
View
Most Expensive
B
MOH London
A40121B8E · Nov 1
£1,909 GBP
View
11 more retailers have this diamond
Prices start from £819 GBPSave up to £1,090 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
£819 GBP