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Radiant|Natural|GIA

1.20ct H SI2 Radiant Natural Diamond

EX • H/SI2 • GIA 5241037198

Certificate GIA 5241037198

Diamond specifications and retailer prices

From £1,482 GBP
As of November 6, 2026
Save £2,778 GBP (65%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: £4,260 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 H colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 5241037198. Listed at 8 retailers as of November 5, 2026, with prices from £1,482 to £4,260, a £2,778 spread on the same certified stone. NZ Jewellers lists it at £4,260. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.20
Carat
H
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryExcellent
FluorescenceNone
Pavilion angle59°
OriginNatural
Grading LabGIA
CertificateGIA 5241037198
Dimensions6.98 × 5.31 × 3.70 mm
L/W Ratio1.31
Key to symbols
Crystal, Feather, Needle
Top View
6.98 mm5.31 mm1.20 ctH / SI2
OriginNatural
CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceNone
CertificateGIA 5241037198
Side View
Table 67.0%CrownGirdle: MED-STKPavilion 59°Culet: NoneDepth 69.7%

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 6
Current: £4,260 GBP|Low: £1,482 GBP|High: £4,571 GBP|Avg: £2,634 GBP|-6.8%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 7, 2026
Retailer 3£1,482 GBP
Retailer 6£2,038 GBP
Retailer 4£2,066 GBP
Retailer 2£2,094 GBP
Retailer 8£2,194 GBP
Retailer 7£3,122 GBP
Retailer 5£3,561 GBP
NZ Jewellers£4,260 GBP

32 data points across 8 retailers

8 retailers£1,482 GBP to £4,260 GBP

A
Cheapest Retailer
-
£1,482 GBP
B+
Retailer 2
-
£2,038 GBP
View
B+
Retailer 3
-
£2,066 GBP
View
B+
Retailer 4
-
£2,094 GBP
View
B+
Retailer 5
-
£2,194 GBP
View
B
Retailer 6
-
£3,122 GBP
View
B
Retailer 7
-
£3,561 GBP
View
Most Expensive
B
NZ Jewellers
b7d5488b-3155-43ee-83dc-597fb9e53a21 · Nov 5
£4,260 GBP
$5,702 USD
View
7 more retailers have this diamond
Prices start from £1,482 GBPSave up to £2,778 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
1.20ct Radiant
£1,482 GBP