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Cushion|Natural|GIA

1.21ct I SI1 Cushion Natural Diamond

VG • I/SI1 • GIA 6555036647

Certificate GIA 6555036647

Diamond specifications and retailer prices

From £2,291 GBP
As of November 6, 2026
Save £2,717 GBP (54%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: £5,008 GBP at MOH London · As of November 2, 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 SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 6555036647. Listed at 19 retailers as of November 2, 2026, with prices from £2,291 to £5,008, a £2,717 spread on the same certified stone. MOH London lists it at £5,008. 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
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6555036647
Dimensions7.40 × 5.49 × 3.76 mm
L/W Ratio1.35
Top View
7.40 mm5.49 mm1.21 ctI / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6555036647
Side View
Table 67.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 68.5%

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: Nov 6
Current: £5,008 GBP|Low: £2,291 GBP|High: £5,069 GBP|Avg: £3,165 GBP
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
November 6, 2026
Retailer 5£2,291 GBP
Retailer 13£2,409 GBP
Retailer 12£2,504 GBP
Retailer 3£2,548 GBP
Retailer 14£2,604 GBP
Retailer 10£2,713 GBP
Retailer 2£2,982 GBP
Retailer 8£3,015 GBP
Retailer 6£3,071 GBP
Retailer 4£3,210 GBP
Retailer 7£3,369 GBP
Retailer 9£3,655 GBP
Retailer 11£4,327 GBP
MOH London£5,008 GBP

45 data points across 14 retailers

19 retailers£2,291 GBP to £5,008 GBP

B+
Cheapest Retailer
-
£2,291 GBP
B
Retailer 2
-
£2,301 GBP
View
B+
Retailer 3
-
£2,409 GBP
View
B
Retailer 4
-
£2,504 GBP
View
Final sale: no returns
B
Retailer 5
-
£2,548 GBP
View
B
Retailer 6
-
£2,604 GBP
View
Retailer 7
-
£2,713 GBP
View
Price last confirmed 9 days ago
B
Retailer 8
-
£2,899 GBP
View
B
Retailer 9
-
£2,950 GBP
View
B
Retailer 10
-
£2,982 GBP
View
B
Retailer 11
-
£3,015 GBP
View
B
Retailer 12
-
£3,071 GBP
View
B
Retailer 13
-
£3,071 GBP
View
B
Retailer 14
-
£3,168 GBP
View
Retailer 15
-
£3,210 GBP
View
Price last confirmed 34 days ago
B
Retailer 16
-
£3,369 GBP
View
B
Retailer 17
-
£3,655 GBP
View
B
Retailer 18
-
£4,327 GBP
View
Most Expensive
B
MOH London
61E79E120 · Nov 2
£5,008 GBP
View
18 more retailers have this diamond
Prices start from £2,291 GBPSave up to £2,717 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
£2,291 GBP