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Cushion|Natural|GIA

1.00ct F SI1 Cushion Natural Diamond

VG • F/SI1 • GIA 1428230770

Certificate GIA 1428230770

Diamond specifications and retailer prices

From £1,412 GBP
$1,895 USD
As of November 1, 2026
Save £1,625 GBP (54%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: £3,037 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 F colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 1428230770. Listed at 20 retailers as of November 1, 2026, with prices from £1,412 to £3,037, a £1,625 spread on the same certified stone. MOH London lists it at £3,037. 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
F
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 1428230770
Dimensions5.77 × 5.26 × 3.75 mm
L/W Ratio1.10
Key to symbols
Cloud, Feather, Crystal, Needle, Indented Natural
Top View
5.77 mm5.26 mm1.00 ctF / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 1428230770
Side View
Table 63.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 71.4%

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: Nov 1
Current: £3,037 GBP|Low: £1,208 GBP|High: £3,074 GBP|Avg: £1,895 GBP|-0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 2, 2026
Retailer 9£1,417 GBP
Retailer 6£1,449 GBP
Retailer 8£1,461 GBP
Retailer 5£1,570 GBP
Retailer 10£1,587 GBP
Retailer 3£1,903 GBP
Retailer 4£2,131 GBP
Retailer 7£2,134 GBP
Retailer 2£2,164 GBP
MOH London£3,037 GBP

44 data points across 10 retailers

20 retailers£1,412 GBP to £3,037 GBP

A
Cheapest Retailer
-
£1,412 GBP
$1,895 USD
A
Retailer 2
-
£1,416 GBP
$1,900 USD
View
A
Retailer 3
-
£1,417 GBP
$1,901 USD
View
A
Retailer 4
-
£1,419 GBP
$1,904 USD
View
A
Retailer 5
-
£1,449 GBP
$1,945 USD
View
Final sale: no returns
Retailer 6
-
£1,461 GBP
$1,960 USD
View
Price last confirmed 12 days ago
A
Retailer 7
-
£1,472 GBP
A$3,039 AUD
View
A
Retailer 8
-
£1,478 GBP
$1,984 USD
View
B+
Retailer 9
-
£1,528 GBP
$2,051 USD
View
B+
Retailer 10
-
£1,570 GBP
$2,107 USD
View
B+
Retailer 11
-
£1,587 GBP
$2,130 USD
View
B+
Retailer 12
-
£1,722 GBP
$2,311 USD
View
B+
Retailer 13
-
£1,818 GBP
$2,440 USD
View
B+
Retailer 14
-
£1,818 GBP
$2,440 USD
View
B+
Retailer 15
-
£1,878 GBP
$2,520 USD
View
B+
Retailer 16
-
£1,903 GBP
View
B
Retailer 17
-
£2,131 GBP
ZAR 46,192 ZAR
View
Retailer 18
-
£2,134 GBP
A$4,406 AUD
View
Price last confirmed 26 days ago
B
Retailer 19
-
£2,164 GBP
€2,766 EUR
View
Most Expensive
B
MOH London
22B3F1456 · Nov 2
£3,037 GBP
View
19 more retailers have this diamond
Prices start from £1,412 GBPSave up to £1,625 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
£1,412 GBP