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Radiant|Natural|GIA

1.20ct G SI1 Radiant Natural Diamond

VG • G/SI1 • GIA 2245004878

Certificate GIA 2245004878

Diamond specifications and retailer prices

From £1,766 GBP
SGD 3,203 SGD
As of November 3, 2026
Save £1,517 GBP (46%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £3,283 GBP at Helzberg Diamonds · As of November 3, 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 very-good cut grade stated by the retailer rather than the lab and certified by GIA 2245004878. Listed at 12 retailers as of November 3, 2026, with prices from £1,766 to £3,283, a £1,517 spread on the same certified stone. Helzberg Diamonds lists it at £3,283. 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
G
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 2245004878
Dimensions7.35 × 5.21 × 3.59 mm
L/W Ratio1.41
Culet sizeNone
Top View
7.35 mm5.21 mm1.20 ctG / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2245004878
Side View
Table 69.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 68.8%

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 3
Current: £3,283 GBP|Low: £1,759 GBP|High: £3,561 GBP|Avg: £2,436 GBP|-7.8%
Helzberg Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 3, 2026
Retailer 2£1,766 GBP
Retailer 8£1,879 GBP
Retailer 9£1,897 GBP
Retailer 7£1,911 GBP
Retailer 5£2,046 GBP
Retailer 3£2,081 GBP
Retailer 11£2,242 GBP
Retailer 12£2,328 GBP
Retailer 6£2,460 GBP
Retailer 10£2,912 GBP
Retailer 4£3,144 GBP
Helzberg Diamonds£3,283 GBP

38 data points across 12 retailers

12 retailers£1,766 GBP to £3,283 GBP

A
Cheapest Retailer
-
£1,766 GBP
SGD 3,203 SGD
A
Retailer 2
-
£1,879 GBP
$2,521 USD
View
A
Retailer 3
-
£1,897 GBP
$2,545 USD
View
A
Retailer 4
-
£1,911 GBP
$2,564 USD
View
A
Retailer 5
-
£2,046 GBP
View
A
Retailer 6
-
£2,081 GBP
SGD 3,773 SGD
View
B+
Retailer 7
-
£2,242 GBP
$3,008 USD
View
B+
Retailer 8
-
£2,328 GBP
$3,124 USD
View
B+
Retailer 9
-
£2,460 GBP
€3,144 EUR
View
B+
Retailer 10
-
£2,912 GBP
$3,908 USD
View
Retailer 11
-
£3,144 GBP
$4,219 USD
View
Most Expensive
B
Helzberg Diamonds
XZRIIKLGGKONO · Nov 3
£3,283 GBP
$4,406 USD
View
11 more retailers have this diamond
Prices start from £1,766 GBPSave up to £1,517 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
£1,766 GBP