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Cushion|Natural|GIA

1.05ct F SI1 Cushion Natural Diamond

GD • F/SI1 • GIA 6271986744

Certificate GIA 6271986744

Diamond specifications and retailer prices

From £2,563 GBP
$3,440 USD
As of November 2, 2026
Save £2,759 GBP (52%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: £5,323 GBP at MOH London · As of November 2, 2026
View at MOH London

About this 1.05ct natural cushion diamond

This 1.05ct natural cushion sits in the classic one-carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 6271986744. Listed at 21 retailers as of November 2, 2026, with prices from £2,563 to £5,323, a £2,759 spread on the same certified stone. MOH London lists it at £5,323. 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

1.05
Carat
F
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6271986744
Dimensions6.23 × 5.53 × 3.78 mm
L/W Ratio1.13
Top View
6.23 mm5.53 mm1.05 ctF / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6271986744
Side View
Table 62.0%CrownGirdle: THK-EXTPavilionCulet: NoneDepth 68.4%

Caratlytics Score

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B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: £5,323 GBP|Low: £2,329 GBP|High: £5,387 GBP|Avg: £3,412 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 10£2,563 GBP
Retailer 5£2,627 GBP
Retailer 6£2,794 GBP
Retailer 9£3,028 GBP
Retailer 8£3,216 GBP
Retailer 3£3,419 GBP
Retailer 2£3,562 GBP
Retailer 7£3,565 GBP
Retailer 4£4,108 GBP
MOH London£5,323 GBP

45 data points across 10 retailers

21 retailers£2,563 GBP to £5,323 GBP

B
Cheapest Retailer
-
£2,563 GBP
$3,440 USD
B
Retailer 2
-
£2,570 GBP
$3,448 USD
View
Retailer 3
-
£2,627 GBP
$3,525 USD
View
Price last confirmed 14 days ago
B
Retailer 4
-
£2,632 GBP
$3,532 USD
View
B
Retailer 5
-
£2,664 GBP
$3,575 USD
View
B
Retailer 6
-
£2,794 GBP
$3,750 USD
View
Final sale: no returns
B
Retailer 7
-
£2,844 GBP
$3,816 USD
View
B
Retailer 8
-
£2,878 GBP
CA$5,365 CAD
View
B
Retailer 9
-
£2,884 GBP
$3,870 USD
View
B
Retailer 10
-
£3,028 GBP
$4,063 USD
View
B
Retailer 11
-
£3,216 GBP
$4,316 USD
View
B
Retailer 12
-
£3,294 GBP
$4,421 USD
View
B
Retailer 13
-
£3,413 GBP
$4,580 USD
View
B
Retailer 14
-
£3,413 GBP
$4,580 USD
View
B
Retailer 15
-
£3,419 GBP
View
B
Retailer 16
-
£3,525 GBP
$4,730 USD
View
B
Retailer 17
-
£3,562 GBP
€4,553 EUR
View
Retailer 18
-
£3,565 GBP
A$7,359 AUD
View
Price last confirmed 23 days ago
Retailer 19
-
£3,780 GBP
$5,073 USD
View
Price last confirmed 10 days ago
B
Retailer 20
-
£4,108 GBP
ZAR 89,057 ZAR
View
Most Expensive
B
MOH London
77A3569D2 · Nov 2
£5,323 GBP
View
20 more retailers have this diamond
Prices start from £2,563 GBPSave up to £2,759 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.

B
1.05ct Cushion
£2,563 GBP