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Radiant|Natural|GIA

1.21ct D SI2 Radiant Natural Diamond

VG • D/SI2 • GIA 5212691065

Certificate GIA 5212691065

Diamond specifications and retailer prices

From £3,171 GBP
As of November 4, 2026
Save £3,541 GBP (53%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: £6,711 GBP at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.21ct natural radiant diamond

This 1.21ct natural radiant sits in the classic one-carat band, graded D colour (colourless) and SI2 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 5212691065. Listed at 21 retailers as of November 4, 2026, with prices from £3,171 to £6,711, a £3,541 spread on the same certified stone. NZ Jewellers lists it at £6,711. 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

1.21
Carat
D
Colour
SI2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5212691065
Dimensions6.27 × 5.24 × 3.73 mm
L/W Ratio1.20
Top View
6.27 mm5.24 mm1.21 ctD / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5212691065
Side View
Table 62.0%CrownGirdle: VTK-ETKPavilionCulet: NoneDepth 71.3%

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 4
Current: £6,711 GBP|Low: £3,108 GBP|High: £6,711 GBP|Avg: £4,178 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
November 6, 2026
Retailer 12£3,108 GBP
Retailer 3£3,171 GBP
Retailer 5£3,278 GBP
Retailer 13£3,356 GBP
Retailer 6£3,635 GBP
Retailer 8£3,635 GBP
Retailer 9£3,635 GBP
Retailer 4£3,829 GBP
Retailer 2£3,877 GBP
Retailer 7£4,195 GBP
Retailer 11£4,535 GBP
Retailer 10£6,425 GBP
NZ Jewellers£6,711 GBP

41 data points across 13 retailers

21 retailers£3,171 GBP to £6,711 GBP

Retailer 1
-
£3,108 GBP
Price last confirmed 13 days ago
B
Retailer 2
-
£3,171 GBP
View
Retailer 3
-
£3,278 GBP
View
Price last confirmed 8 days ago
B+
Retailer 4
-
£3,356 GBP
View
Final sale: no returns
B+
Retailer 5
-
£3,384 GBP
View
B+
Retailer 6
-
£3,407 GBP
View
B
Retailer 7
-
£3,635 GBP
View
B+
Retailer 8
-
£3,635 GBP
View
Retailer 9
-
£3,635 GBP
View
Price last confirmed 9 days ago
B
Retailer 10
-
£3,728 GBP
View
B
Retailer 11
-
£3,829 GBP
View
B
Retailer 12
-
£3,877 GBP
View
B
Retailer 13
-
£3,961 GBP
View
B
Retailer 14
-
£4,079 GBP
View
B
Retailer 15
-
£4,079 GBP
View
B
Retailer 16
-
£4,195 GBP
View
B
Retailer 17
-
£4,214 GBP
View
Retailer 18
-
£4,428 GBP
View
Price last confirmed 15 days ago
Retailer 19
-
£4,535 GBP
View
Price last confirmed 9 days ago
Retailer 20
-
£6,425 GBP
View
Price last confirmed 9 days ago
Most Expensive
B
NZ Jewellers
0b9d225d-fe1b-44ac-bcad-51c1973e29fb · Nov 5
£6,711 GBP
$8,983 USD
View
20 more retailers have this diamond
Prices start from £3,171 GBPSave up to £3,541 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+
1.21ct Radiant
£3,171 GBP