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Cushion|Natural|GIA

1.22ct I SI1 Cushion Natural Diamond

EX • I/SI1 • GIA 2141505892

Certificate GIA 2141505892

Diamond specifications and retailer prices

From £2,455 GBP
As of November 6, 2026
Save £1,250 GBP (34%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: £3,705 GBP at 77 Diamonds · As of November 6, 2026
View at 77 Diamonds

About this 1.22ct natural cushion diamond

This 1.22ct natural cushion sits in the classic one-carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2141505892. Listed at 3 retailers as of November 6, 2026, with prices from £2,455 to £3,705, a £1,250 spread on the same certified stone. 77 Diamonds lists it at £3,705. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.22
Carat
I
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2141505892
Dimensions6.09 × 5.74 × 3.96 mm
L/W Ratio1.06
Top View
6.09 mm5.74 mm1.22 ctI / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 2141505892
Side View
Table 58.0%CrownGirdle: MED-XTKPavilionCuletDepth 69.1%

Caratlytics Score

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

Price History

Last verified: Nov 6
Current: £3,705 GBP|Low: £2,455 GBP|High: £3,750 GBP|Avg: £2,897 GBP|+1.1%
77 Diamonds
Retailer 2
Retailer 3
November 6, 2026
Retailer 2£2,455 GBP
Retailer 3£2,508 GBP
77 Diamonds£3,705 GBP

33 data points across 3 retailers

3 retailers£2,455 GBP to £3,705 GBP

B+
Cheapest Retailer
-
£2,455 GBP
B
Retailer 2
-
£2,508 GBP
View
Most Expensive
B
77 Diamonds
CUSMBWUMQVZYP · Nov 6
£3,705 GBP
View
2 more retailers have this diamond
Prices start from £2,455 GBPSave up to £1,250 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+
1.22ct Cushion
£2,455 GBP