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Radiant|Natural|GIA

1.20ct I SI1 Radiant Natural Diamond

VG • I/SI1 • GIA 3545664800

Certificate GIA 3545664800

Diamond specifications and retailer prices

From £2,386 GBP
$3,197 USD
As of November 1, 2026
Save £2,783 GBP (54%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: £5,169 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 very-good cut grade stated by the retailer rather than the lab and certified by GIA 3545664800. Listed at 22 retailers as of October 30, 2026, with prices from £2,386 to £5,169, a £2,783 spread on the same certified stone. NZ Jewellers lists it at £5,169. 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

1.20
Carat
I
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 3545664800
Dimensions7.41 × 5.07 × 3.49 mm
L/W Ratio1.46
Top View
7.41 mm5.07 mm1.20 ctI / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 3545664800
Side View
Table 71.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 68.8%

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: £5,169 GBP|Low: £2,274 GBP|High: £5,169 GBP|Avg: £3,332 GBP
NZ Jewellers
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
Retailer 15
November 1, 2026
Retailer 13£2,386 GBP
Retailer 12£2,481 GBP
Retailer 14£2,524 GBP
Retailer 4£2,688 GBP
Retailer 5£2,688 GBP
Retailer 3£2,791 GBP
Retailer 8£3,010 GBP
Retailer 6£3,101 GBP
Retailer 15£3,181 GBP
Retailer 10£3,358 GBP
Retailer 7£3,358 GBP
Retailer 9£3,647 GBP
Retailer 11£4,287 GBP
Retailer 2£4,962 GBP
NZ Jewellers£5,169 GBP

43 data points across 15 retailers

22 retailers£2,386 GBP to £5,169 GBP

B
Cheapest Retailer
-
£2,386 GBP
$3,197 USD
B
Retailer 2
-
£2,467 GBP
A$5,086 AUD
View
B
Retailer 3
-
£2,481 GBP
$3,324 USD
View
Final sale: no returns
B+
Retailer 4
-
£2,524 GBP
$3,382 USD
View
B
Retailer 5
-
£2,582 GBP
$3,460 USD
View
B
Retailer 6
-
£2,688 GBP
$3,601 USD
View
B
Retailer 7
-
£2,688 GBP
$3,601 USD
View
B
Retailer 8
-
£2,791 GBP
$3,740 USD
View
B
Retailer 9
-
£2,923 GBP
$3,917 USD
View
B
Retailer 10
-
£3,010 GBP
View
B
Retailer 11
-
£3,023 GBP
$4,050 USD
View
B
Retailer 12
-
£3,038 GBP
$4,070 USD
View
B
Retailer 13
-
£3,038 GBP
$4,070 USD
View
B
Retailer 14
-
£3,101 GBP
$4,155 USD
View
B
Retailer 15
-
£3,142 GBP
$4,210 USD
View
B
Retailer 16
-
£3,175 GBP
$4,255 USD
View
Retailer 17
-
£3,181 GBP
A$6,557 AUD
View
Price last confirmed 29 days ago
B
Retailer 18
-
£3,358 GBP
€4,285 EUR
View
B
Retailer 19
-
£3,647 GBP
ZAR 78,938 ZAR
View
C
Retailer 20
-
£4,287 GBP
$5,745 USD
View
B
Retailer 21
-
£4,962 GBP
View
Most Expensive
C
NZ Jewellers
f403a4be-5530-46da-ba1d-128c7e4ea63f · Oct 30
£5,169 GBP
$6,926 USD
View
21 more retailers have this diamond
Prices start from £2,386 GBPSave up to £2,783 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
£2,386 GBP