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Radiant|Natural|GIA

1.20ct G SI1 Radiant Natural Diamond

EX • G/SI1 • GIA 5242074030

Certificate GIA 5242074030

Diamond specifications and retailer prices

From £2,199 GBP
$2,951 USD
As of October 31, 2026
Save £1,983 GBP (47%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £4,182 GBP at Helzberg Diamonds · As of November 2, 2026
View at Helzberg Diamonds

About this 1.2ct natural radiant diamond

This 1.2ct natural radiant sits in the classic one-carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 5242074030. Listed at 15 retailers as of October 31, 2026, with prices from £2,199 to £4,182, a £1,983 spread on the same certified stone. Helzberg Diamonds lists it at £4,182. 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
G
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5242074030
Dimensions7.28 × 5.31 × 3.61 mm
L/W Ratio1.37
Culet sizeNone
Top View
7.28 mm5.31 mm1.20 ctG / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5242074030
Side View
Table 68.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 67.9%

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: Oct 31
Current: £4,182 GBP|Low: £2,199 GBP|High: £4,182 GBP|Avg: £2,926 GBP
Helzberg Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
November 3, 2026
Retailer 3£2,199 GBP
Retailer 2£2,249 GBP
Retailer 6£2,371 GBP
Retailer 14£2,376 GBP
Retailer 11£2,400 GBP
Retailer 9£2,592 GBP
Retailer 5£2,649 GBP
Retailer 15£2,794 GBP
Retailer 12£2,818 GBP
Retailer 4£2,873 GBP
Retailer 10£2,937 GBP
Retailer 8£3,052 GBP
Retailer 13£3,709 GBP
Retailer 7£3,962 GBP
Helzberg Diamonds£4,182 GBP

26 data points across 15 retailers

15 retailers£2,199 GBP to £4,182 GBP

A
Cheapest Retailer
-
£2,199 GBP
$2,951 USD
B+
Retailer 2
-
£2,249 GBP
SGD 4,079 SGD
View
B+
Retailer 3
-
£2,371 GBP
$3,182 USD
View
B+
Retailer 4
-
£2,376 GBP
$3,188 USD
View
B+
Retailer 5
-
£2,400 GBP
$3,220 USD
View
B+
Retailer 6
-
£2,592 GBP
View
B+
Retailer 7
-
£2,649 GBP
SGD 4,804 SGD
View
B
Retailer 8
-
£2,794 GBP
$3,750 USD
View
B
Retailer 9
-
£2,818 GBP
$3,781 USD
View
B+
Retailer 10
-
£2,873 GBP
$3,855 USD
View
B+
Retailer 11
-
£2,937 GBP
€3,754 EUR
View
B+
Retailer 12
-
£3,052 GBP
$4,095 USD
View
B
Retailer 13
-
£3,709 GBP
$4,977 USD
View
Retailer 14
-
£3,962 GBP
$5,317 USD
View
Most Expensive
B
Helzberg Diamonds
XZRLIKIGNKGJG · Nov 2
£4,182 GBP
$5,612 USD
View
14 more retailers have this diamond
Prices start from £2,199 GBPSave up to £1,983 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
£2,199 GBP