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Cushion|Natural|GIA

1.21ct I SI2 Cushion Natural Diamond

VG • I/SI2 • GIA 6302486253

Shape and cutting style on the report: Cushion modified brilliant

Certificate GIA 6302486253

Diamond specifications and retailer prices

From £1,673 GBP
$2,241 USD
As of October 31, 2026
Save £876 GBP (34%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: £2,549 GBP at 77 Diamonds · As of November 2, 2026
View at 77 Diamonds

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 6302486253. Listed at 6 retailers as of October 31, 2026, with prices from £1,673 to £2,549, a £876 spread on the same certified stone. 77 Diamonds lists it at £2,549. 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 6302486253
Dimensions6.00 × 5.61 × 4.03 mm
L/W Ratio1.07
Top View
6.00 mm5.61 mm1.21 ctI / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6302486253
Side View
Table 62.0%CrownGirdle: Very ThickPavilionCulet: NoneDepth 71.9%

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: £2,549 GBP|Low: £1,520 GBP|High: £2,552 GBP|Avg: £1,952 GBP|+2.3%
77 Diamonds
Retailer 2
Retailer 3
November 2, 2026
Retailer 2£1,673 GBP
Retailer 3£1,676 GBP
77 Diamonds£2,549 GBP

34 data points across 3 retailers

6 retailers£1,673 GBP to £2,549 GBP

B+
Cheapest Retailer
-
£1,673 GBP
$2,241 USD
Final sale: no returns
B+
Retailer 2
-
£1,676 GBP
$2,245 USD
View
B+
Retailer 3
-
£1,717 GBP
$2,301 USD
View
B+
Retailer 4
-
£1,727 GBP
$2,314 USD
View
B+
Retailer 5
-
£1,775 GBP
A$3,658 AUD
View
Most Expensive
B
77 Diamonds
CUSZRDBQQGQF · Nov 2
£2,549 GBP
View
5 more retailers have this diamond
Prices start from £1,673 GBPSave up to £876 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
£1,673 GBP