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Radiant|Natural|GIA

1.20ct K SI1 Radiant Natural Diamond

GD • K/SI1 • GIA 5203042963

Certificate GIA 5203042963

Diamond specifications and retailer prices

From £2,204 GBP
As of November 4, 2026
Save £2,706 GBP (55%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £4,910 GBP at NZ Jewellers · As of November 5, 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 K colour (faint-tinted) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 5203042963. Listed at 16 retailers as of November 4, 2026, with prices from £2,204 to £4,910, a £2,706 spread on the same certified stone. NZ Jewellers lists it at £4,910. 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
K
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5203042963
Dimensions6.87 × 5.42 × 3.74 mm
L/W Ratio1.27
Top View
6.87 mm5.42 mm1.20 ctK / SI1
OriginNatural
CutGood
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 5203042963
Side View
Table 69.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 69.0%

Caratlytics Score

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B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: £4,910 GBP|Low: £2,204 GBP|High: £4,910 GBP|Avg: £3,207 GBP
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 7, 2026
Retailer 7£2,204 GBP
Retailer 10£2,553 GBP
Retailer 11£2,553 GBP
Retailer 9£2,651 GBP
Retailer 4£2,808 GBP
Retailer 2£2,916 GBP
Retailer 3£2,946 GBP
Retailer 5£3,096 GBP
Retailer 6£3,440 GBP
Retailer 8£4,719 GBP
NZ Jewellers£4,910 GBP

45 data points across 11 retailers

16 retailers£2,204 GBP to £4,910 GBP

B
Cheapest Retailer
-
£2,204 GBP
B
Retailer 2
-
£2,258 GBP
View
B
Retailer 3
-
£2,267 GBP
View
B
Retailer 4
-
£2,398 GBP
View
B
Retailer 5
-
£2,462 GBP
View
Retailer 6
-
£2,553 GBP
View
Price last confirmed 9 days ago
B
Retailer 7
-
£2,553 GBP
View
C
Retailer 8
-
£2,651 GBP
View
C
Retailer 9
-
£2,776 GBP
View
C
Retailer 10
-
£2,808 GBP
View
C
Retailer 11
-
£2,916 GBP
View
C
Retailer 12
-
£2,946 GBP
View
C
Retailer 13
-
£3,096 GBP
View
C
Retailer 14
-
£3,440 GBP
View
Retailer 15
-
£4,719 GBP
View
Price last confirmed 12 days ago
Most Expensive
C
NZ Jewellers
94f6cb51-d79f-42dc-8b7d-64e08f9f080a · Nov 5
£4,910 GBP
$6,572 USD
View
15 more retailers have this diamond
Prices start from £2,204 GBPSave up to £2,706 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
£2,204 GBP