CaratHunter
Plans
Radiant|Natural|GIA

1.22ct I SI2 Radiant Natural Diamond

EX • I/SI2 • GIA 5166772275

Certificate GIA 5166772275

Diamond specifications and retailer prices

From £2,161 GBP
As of November 6, 2026
Save £1,016 GBP (32%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: £3,177 GBP at 77 Diamonds · As of November 6, 2026
View at 77 Diamonds

About this 1.22ct natural radiant diamond

This 1.22ct natural radiant sits in the classic one-carat band, graded I colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 5166772275. Listed at 4 retailers as of November 6, 2026, with prices from £2,161 to £3,177, a £1,016 spread on the same certified stone. 77 Diamonds lists it at £3,177. 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
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5166772275
Dimensions7.18 × 5.29 × 3.46 mm
L/W Ratio1.36
Top View
7.18 mm5.29 mm1.22 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5166772275
Side View
Table 63.0%CrownGirdle: ThickPavilionCulet: NoneDepth 65.4%

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: £3,177 GBP|Low: £2,161 GBP|High: £3,353 GBP|Avg: £2,501 GBP|-3.0%
77 Diamonds
Retailer 2
Retailer 3
Retailer 4
November 6, 2026
Retailer 3£2,161 GBP
Retailer 2£2,180 GBP
Retailer 4£2,234 GBP
77 Diamonds£3,177 GBP

34 data points across 4 retailers

4 retailers£2,161 GBP to £3,177 GBP

B+
Cheapest Retailer
-
£2,161 GBP
B+
Retailer 2
-
£2,180 GBP
View
B+
Retailer 3
-
£2,234 GBP
View
Most Expensive
B
77 Diamonds
RADDHASHJMFPT · Nov 6
£3,177 GBP
View
3 more retailers have this diamond
Prices start from £2,161 GBPSave up to £1,016 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 Radiant
£2,161 GBP