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Cushion|Natural|GIA

1.21ct I SI2 Cushion Natural Diamond

VG • I/SI2 • GIA 6542598809

Certificate GIA 6542598809

Diamond specifications and retailer prices

From £1,775 GBP
$2,378 USD
As of October 31, 2026
Save £2,096 GBP (54%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £3,871 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 I 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 6542598809. Listed at 16 retailers as of October 31, 2026, with prices from £1,775 to £3,871, a £2,096 spread on the same certified stone. MOH London lists it at £3,871. 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
I
Colour
SI2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6542598809
Dimensions7.01 × 5.74 × 3.88 mm
L/W Ratio1.22
Top View
7.01 mm5.74 mm1.21 ctI / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6542598809
Side View
Table 68.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 67.6%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: £3,871 GBP|Low: £1,775 GBP|High: £3,917 GBP|Avg: £2,330 GBP|-1.2%
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
Retailer 14
Retailer 15
November 2, 2026
Retailer 15£1,775 GBP
Retailer 14£1,821 GBP
Retailer 11£1,878 GBP
Retailer 12£1,935 GBP
Retailer 9£1,970 GBP
Retailer 10£2,121 GBP
Retailer 7£2,225 GBP
Retailer 13£2,233 GBP
Retailer 5£2,351 GBP
Retailer 6£2,351 GBP
Retailer 8£2,418 GBP
Retailer 4£2,433 GBP
Retailer 3£2,687 GBP
Retailer 2£2,709 GBP
MOH London£3,871 GBP

32 data points across 15 retailers

16 retailers£1,775 GBP to £3,871 GBP

B+
Cheapest Retailer
-
£1,775 GBP
$2,378 USD
B+
Retailer 2
-
£1,821 GBP
$2,440 USD
View
B+
Retailer 3
-
£1,855 GBP
$2,485 USD
View
B+
Retailer 4
-
£1,878 GBP
$2,516 USD
View
B+
Retailer 5
-
£1,935 GBP
$2,593 USD
View
Final sale: no returns
B+
Retailer 6
-
£1,941 GBP
A$4,001 AUD
View
B+
Retailer 7
-
£1,970 GBP
$2,639 USD
View
B+
Retailer 8
-
£2,121 GBP
$2,842 USD
View
B
Retailer 9
-
£2,233 GBP
$2,992 USD
View
B
Retailer 10
-
£2,351 GBP
$3,150 USD
View
B
Retailer 11
-
£2,351 GBP
$3,150 USD
View
B+
Retailer 12
-
£2,418 GBP
View
B
Retailer 13
-
£2,433 GBP
$3,260 USD
View
Retailer 14
-
£2,687 GBP
$3,600 USD
View
Price last confirmed 10 days ago
B
Retailer 15
-
£2,709 GBP
€3,457 EUR
View
Most Expensive
B
MOH London
B141C97F4 · Nov 1
£3,871 GBP
View
15 more retailers have this diamond
Prices start from £1,775 GBPSave up to £2,096 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
£1,775 GBP