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Radiant|Natural|GIA

1.21ct H SI2 Radiant Natural Diamond

VG • H/SI2 • GIA 1527349081

Certificate GIA 1527349081

Diamond specifications and retailer prices

From £1,790 GBP
As of November 2, 2026
Save £1,996 GBP (53%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: £3,786 GBP at NZ Jewellers · As of November 3, 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 H colour (near-colourless) and SI2 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 1527349081. Listed at 6 retailers as of November 2, 2026, with prices from £1,790 to £3,786, a £1,996 spread on the same certified stone. NZ Jewellers lists it at £3,786. 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
H
Colour
SI2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle44.05°
Pavilion angle30.69°
OriginNatural
Grading LabGIA
CertificateGIA 1527349081
Dimensions7.10 × 5.31 × 3.50 mm
L/W Ratio1.34
Girdle conditionThick
Key to symbols
Crystal, Cloud, Feather, Needle
Top View
7.10 mm5.31 mm1.21 ctH / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1527349081
Side View
Table 73.0%Crown 44.05°Girdle: STK-THKPavilion 30.69°Culet: NoneDepth 65.8%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: £3,786 GBP|Low: £1,789 GBP|High: £3,795 GBP|Avg: £2,380 GBP|-0.2%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 7, 2026
Retailer 3£1,790 GBP
Retailer 5£1,811 GBP
Retailer 2£1,894 GBP
Retailer 6£1,918 GBP
Retailer 7£2,086 GBP
Retailer 4£3,171 GBP
NZ Jewellers£3,786 GBP

29 data points across 7 retailers

6 retailers£1,790 GBP to £3,786 GBP

A
Cheapest Retailer
-
£1,790 GBP
B+
Retailer 2
-
£1,811 GBP
View
B+
Retailer 3
-
£1,894 GBP
View
B+
Retailer 4
-
£1,918 GBP
View
B
Retailer 5
-
£3,171 GBP
View
Most Expensive
B
NZ Jewellers
ae1aa5fc-4695-4292-a0d5-132ad732b0e5 · Nov 3
£3,786 GBP
$5,067 USD
View
5 more retailers have this diamond
Prices start from £1,790 GBPSave up to £1,996 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.

A
1.21ct Radiant
£1,790 GBP