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Radiant|Natural|GIA

1.20ct D SI1 Radiant Natural Diamond

VG • D/SI1 • GIA 3525071502

Certificate GIA 3525071502

Diamond specifications and retailer prices

From £2,829 GBP
As of November 2, 2026
Save £2,224 GBP (44%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: £5,053 GBP at NZ Jewellers · As of November 3, 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 D colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 3525071502. Listed at 8 retailers as of November 2, 2026, with prices from £2,829 to £5,053, a £2,224 spread on the same certified stone. NZ Jewellers lists it at £5,053. 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
D
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle43.64°
Pavilion angle31.73°
OriginNatural
Grading LabGIA
CertificateGIA 3525071502
Dimensions6.88 × 5.39 × 3.54 mm
L/W Ratio1.28
Top View
6.88 mm5.39 mm1.20 ctD / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 3525071502
Side View
Table 71.0%Crown 43.64°Girdle: Thick to Very ThickPavilion 31.73°Culet: NDepth 65.7%

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 2
Current: £5,053 GBP|Low: £2,772 GBP|High: £5,077 GBP|Avg: £3,395 GBP|-0.5%
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 7, 2026
Retailer 8£2,829 GBP
Retailer 9£2,900 GBP
Retailer 2£2,903 GBP
Retailer 4£2,985 GBP
Retailer 11£3,009 GBP
Retailer 6£3,012 GBP
Retailer 10£3,106 GBP
Retailer 13£3,154 GBP
Retailer 12£3,189 GBP
Retailer 3£3,270 GBP
Retailer 5£3,555 GBP
Retailer 7£4,850 GBP
NZ Jewellers£5,053 GBP

33 data points across 13 retailers

8 retailers£2,829 GBP to £5,053 GBP

B+
Cheapest Retailer
-
£2,829 GBP
B+
Retailer 2
-
£2,900 GBP
View
B+
Retailer 3
-
£2,903 GBP
View
B
Retailer 4
-
£3,009 GBP
View
B
Retailer 5
-
£3,012 GBP
View
Retailer 6
-
£3,106 GBP
View
Price last confirmed 30 days ago
B
Retailer 7
-
£4,850 GBP
View
Most Expensive
B
NZ Jewellers
fc0659df-d8d3-4999-b432-b62ee671c144 · Nov 3
£5,053 GBP
$6,763 USD
View
7 more retailers have this diamond
Prices start from £2,829 GBPSave up to £2,224 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
£2,829 GBP