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Cushion|Natural|GIA

1.21ct J SI2 Cushion Natural Diamond

VG • J/SI2 • GIA 2457556713

Certificate GIA 2457556713

Diamond specifications and retailer prices

From £1,981 GBP
$2,654 USD
As of October 31, 2026
Save £2,334 GBP (54%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £4,316 GBP at MOH London · As of November 1, 2026
View at MOH London

About this 1.21ct natural cushion diamond

This 1.21ct natural cushion sits in the classic one-carat band, graded J colour (near-colourless) and SI2 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 2457556713. Listed at 16 retailers as of October 31, 2026, with prices from £1,981 to £4,316, a £2,334 spread on the same certified stone. MOH London lists it at £4,316. 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

1.21
Carat
J
Colour
SI2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 2457556713
Dimensions7.01 × 5.57 × 3.75 mm
L/W Ratio1.26
Top View
7.01 mm5.57 mm1.21 ctJ / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 2457556713
Side View
Table 63.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 67.3%

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: Oct 31
Current: £4,316 GBP|Low: £1,863 GBP|High: £4,368 GBP|Avg: £2,618 GBP|-0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 1, 2026
Retailer 7£2,034 GBP
Retailer 3£2,093 GBP
Retailer 9£2,158 GBP
Retailer 10£2,338 GBP
Retailer 12£2,463 GBP
Retailer 8£2,475 GBP
Retailer 11£2,485 GBP
Retailer 4£2,620 GBP
Retailer 13£2,620 GBP
Retailer 2£2,697 GBP
Retailer 5£2,709 GBP
Retailer 6£3,022 GBP
MOH London£4,316 GBP

44 data points across 13 retailers

16 retailers£1,981 GBP to £4,316 GBP

B
Cheapest Retailer
-
£1,981 GBP
$2,654 USD
B
Retailer 2
-
£2,034 GBP
$2,725 USD
View
B
Retailer 3
-
£2,067 GBP
$2,770 USD
View
B
Retailer 4
-
£2,093 GBP
$2,805 USD
View
B
Retailer 5
-
£2,158 GBP
$2,891 USD
View
Final sale: no returns
B
Retailer 6
-
£2,338 GBP
$3,132 USD
View
B
Retailer 7
-
£2,463 GBP
A$5,078 AUD
View
B
Retailer 8
-
£2,475 GBP
$3,316 USD
View
B
Retailer 9
-
£2,485 GBP
$3,329 USD
View
B
Retailer 10
-
£2,620 GBP
$3,510 USD
View
B
Retailer 11
-
£2,620 GBP
$3,510 USD
View
B
Retailer 12
-
£2,697 GBP
View
B
Retailer 13
-
£2,709 GBP
$3,630 USD
View
Retailer 14
-
£2,923 GBP
$3,917 USD
View
Price last confirmed 9 days ago
B
Retailer 15
-
£3,022 GBP
€3,856 EUR
View
Most Expensive
B
MOH London
8297365A2 · Nov 1
£4,316 GBP
View
15 more retailers have this diamond
Prices start from £1,981 GBPSave up to £2,334 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
1.21ct Cushion
£1,981 GBP