Radiant|Natural|GIA

1.20ct K SI1 Radiant Natural Diamond

VG • K/SI1 • GIA 5038

Certificate GIA 5038

Diamond specifications and retailer prices

From £1,579 GBP
As of November 6, 2026
Save £2,545 GBP (62%) vs most expensive(unlock to see where)
28 retailers carry this diamond
Most expensive: £4,328 GBP at NZ Jewellers · As of October 9, 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 very-good cut grade stated by the retailer rather than the lab and certified by GIA. Listed at 28 retailers as of November 5, 2026, with a 161% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 5038
Dimensions6.91 × 5.13 × 3.63 mm
L/W Ratio1.35
Top View
6.91 mm5.13 mm1.20 ctK / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 5038
Side View
Table 64.0%CrownGirdle: VTK-VTKPavilionCulet: NoneDepth 70.8%

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: £4,124 GBP|Low: £1,579 GBP|High: £4,328 GBP|Avg: £2,209 GBP|-4.7%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 2, 2026
Retailer 7£1,579 GBP
Retailer 4£1,685 GBP
Retailer 3£1,787 GBP
Retailer 2£1,870 GBP
Retailer 8£1,875 GBP
Retailer 5£1,948 GBP
Retailer 6£2,062 GBP
NZ Jewellers£4,124 GBP

21 data points across 8 retailers

28 retailers£1,579 GBP to £4,124 GBP

B+
Cheapest Retailer
-
£1,579 GBP
B+
Retailer 2
-
£1,685 GBP
View
B+
Retailer 3
-
£1,787 GBP
View
B
Retailer 4
-
£1,870 GBP
View
Retailer 5
-
£1,875 GBP
View
Price last confirmed 57 days ago
Retailer 6
-
£1,875 GBP
View
Price last confirmed 37 days ago
Retailer 7
-
£1,875 GBP
View
Price last confirmed 46 days ago
Retailer 8
-
£1,875 GBP
View
Price last confirmed 30 days ago
Retailer 9
-
£1,875 GBP
View
Price last confirmed 34 days ago
Retailer 10
-
£1,875 GBP
View
Price last confirmed 28 days ago
Retailer 11
-
£1,875 GBP
View
Price last confirmed 31 days ago
Retailer 12
-
£1,875 GBP
View
Price last confirmed 26 days ago
B
Retailer 13
-
£1,948 GBP
View
Retailer 14
-
£1,962 GBP
View
Price last confirmed 38 days ago
B
Retailer 15
-
£2,062 GBP
View
Retailer 16
-
£2,164 GBP
View
Price last confirmed 45 days ago
Retailer 17
-
£2,164 GBP
View
Price last confirmed 62 days ago
Retailer 18
-
£2,164 GBP
View
Price last confirmed 57 days ago
Retailer 19
-
£2,164 GBP
View
Price last confirmed 31 days ago
Retailer 20
-
£2,164 GBP
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Price last confirmed 36 days ago
Retailer 21
-
£2,164 GBP
View
Price last confirmed 39 days ago
Retailer 22
-
£2,164 GBP
View
Price last confirmed 29 days ago
C
Retailer 23
-
£4,124 GBP
View
Retailer 24
-
£4,328 GBP
View
Price last confirmed 35 days ago
Retailer 25
-
£4,328 GBP
View
Price last confirmed 47 days ago
Retailer 26
-
£4,328 GBP
View
Price last confirmed 39 days ago
Retailer 27
-
£4,328 GBP
View
Price last confirmed 32 days ago
Most Expensive
NZ Jewellers
4713beec-22a6-4930-9ec2-00c24901402a · Oct 9
£4,328 GBP
$5,793 USD
View
Price last confirmed 28 days ago
27 more retailers have this diamond
Prices start from £1,579 GBPSave up to £2,545 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
£1,579 GBP