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Cushion|Natural|GIA

1.00ct H SI1 Cushion Natural Diamond

EX • H/SI1 • GIA 1543349712

Certificate GIA 1543349712

Diamond specifications and retailer prices

From £1,142 GBP
$1,532 USD
As of October 26, 2026
Save £1,243 GBP (52%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £2,385 GBP at MOH London · As of October 26, 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 1543349712. Listed at 16 retailers as of October 26, 2026, with prices from £1,142 to £2,385, a £1,243 spread on the same certified stone. MOH London lists it at £2,385. 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
OriginNatural
Grading LabGIA
CertificateGIA 1543349712
Dimensions6.11 × 5.27 × 3.65 mm
L/W Ratio1.16
Culet sizeNone
Top View
6.11 mm5.27 mm1.00 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1543349712
Side View
Table 60.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 69.4%

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: Oct 26
Current: £2,385 GBP|Low: £941 GBP|High: £2,410 GBP|Avg: £1,439 GBP|-1.1%
MOH London
Retailer 2
Retailer 3
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Retailer 5
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Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
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Retailer 17
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Retailer 20
October 27, 2026
Retailer 10£941 GBP
Retailer 11£1,138 GBP
Retailer 8£1,142 GBP
Retailer 17£1,155 GBP
Retailer 7£1,198 GBP
Retailer 15£1,232 GBP
Retailer 6£1,253 GBP
Retailer 9£1,287 GBP
Retailer 19£1,342 GBP
Retailer 5£1,365 GBP
Retailer 4£1,446 GBP
Retailer 18£1,446 GBP
Retailer 20£1,490 GBP
Retailer 3£1,498 GBP
Retailer 2£1,515 GBP
Retailer 12£1,653 GBP
Retailer 14£1,656 GBP
Retailer 16£1,774 GBP
Retailer 13£1,847 GBP
MOH London£2,385 GBP

33 data points across 20 retailers

16 retailers£1,142 GBP to £2,385 GBP

A
Cheapest Retailer
-
£1,142 GBP
$1,532 USD
Retailer 2
-
£1,155 GBP
$1,550 USD
View
Price last confirmed 12 days ago
A
Retailer 3
-
£1,198 GBP
$1,608 USD
View
Retailer 4
-
£1,232 GBP
$1,653 USD
View
Price last confirmed 8 days ago
A
Retailer 5
-
£1,253 GBP
$1,681 USD
View
Price last confirmed 7 days ago
Retailer 6
-
£1,287 GBP
$1,727 USD
View
Price last confirmed 8 days ago
Retailer 7
-
£1,365 GBP
$1,832 USD
View
Price last confirmed 9 days ago
B+
Retailer 8
-
£1,446 GBP
$1,940 USD
View
Price last confirmed 7 days ago
B+
Retailer 9
-
£1,446 GBP
$1,940 USD
View
Price last confirmed 7 days ago
Retailer 10
-
£1,490 GBP
$1,999 USD
View
Price last confirmed 12 days ago
Retailer 11
-
£1,498 GBP
$2,010 USD
View
Price last confirmed 7 days ago
B+
Retailer 12
-
£1,515 GBP
View
B+
Retailer 13
-
£1,656 GBP
ZAR 35,890 ZAR
View
Retailer 14
-
£1,774 GBP
A$3,663 AUD
View
Price last confirmed 27 days ago
B+
Retailer 15
-
£1,847 GBP
€2,361 EUR
View
Most Expensive
B
MOH London
0B288978A · Oct 26
£2,385 GBP
View
15 more retailers have this diamond
Prices start from £1,142 GBPSave up to £1,243 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
£1,142 GBP