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Radiant|Natural|GIA

1.20ct I SI1 Radiant Natural Diamond

EX • I/SI1 • GIA 2447669421

Certificate GIA 2447669421

Diamond specifications and retailer prices

From £2,455 GBP
$3,290 USD
As of November 1, 2026
Save £2,864 GBP (54%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £5,320 GBP at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 1.2ct natural radiant diamond

This 1.2ct natural radiant 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 2447669421. Listed at 17 retailers as of October 30, 2026, with prices from £2,455 to £5,320, a £2,864 spread on the same certified stone. NZ Jewellers lists it at £5,320. 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

1.20
Carat
I
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2447669421
Dimensions6.83 × 5.30 × 3.65 mm
L/W Ratio1.29
Top View
6.83 mm5.30 mm1.20 ctI / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceNone
CertificateGIA 2447669421
Side View
Table 67.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 68.9%

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: Nov 1
Current: £2,979 GBP|Low: £2,598 GBP|High: £5,168 GBP|Avg: £3,383 GBP|-1.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 1, 2026
Retailer 7£2,598 GBP
Retailer 9£2,873 GBP
Retailer 1£2,979 GBP
Retailer 3£3,098 GBP
Retailer 6£3,137 GBP
Retailer 8£3,274 GBP
Retailer 5£3,456 GBP
Retailer 4£3,753 GBP
Retailer 2£5,106 GBP

38 data points across 9 retailers

17 retailers£2,455 GBP to £5,320 GBP

B+
Cheapest Retailer
-
£2,455 GBP
$3,290 USD
B+
Retailer 2
-
£2,598 GBP
$3,481 USD
View
B
Retailer 3
-
£2,766 GBP
$3,706 USD
View
B
Retailer 4
-
£2,873 GBP
$3,849 USD
View
B
Retailer 5
-
£2,979 GBP
View
B
Retailer 6
-
£3,098 GBP
View
B
Retailer 7
-
£3,127 GBP
$4,190 USD
View
B
Retailer 8
-
£3,127 GBP
$4,190 USD
View
B
Retailer 9
-
£3,137 GBP
$4,203 USD
View
B
Retailer 10
-
£3,192 GBP
$4,277 USD
View
B
Retailer 11
-
£3,232 GBP
$4,330 USD
View
Retailer 12
-
£3,274 GBP
A$6,749 AUD
View
Price last confirmed 29 days ago
Retailer 13
-
£3,456 GBP
$4,630 USD
View
Price last confirmed 10 days ago
B
Retailer 14
-
£3,456 GBP
€4,410 EUR
View
B
Retailer 15
-
£3,753 GBP
ZAR 81,243 ZAR
View
B
Retailer 16
-
£5,106 GBP
View
Most Expensive
B
NZ Jewellers
fa093de3-088d-40cf-959a-81fa88147d54 · Oct 30
£5,320 GBP
$7,128 USD
View
16 more retailers have this diamond
Prices start from £2,455 GBPSave up to £2,864 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+
1.20ct Radiant
£2,455 GBP