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Radiant|Natural|GIA

1.29ct F SI2 Radiant Natural Diamond

VG • F/SI2 • GIA 1555792779

Certificate GIA 1555792779

Diamond specifications and retailer prices

From £2,230 GBP
As of November 4, 2026
Save £2,012 GBP (47%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £4,242 GBP at Helzberg Diamonds · As of November 6, 2026
View at Helzberg Diamonds

About this 1.29ct natural radiant diamond

This 1.29ct natural radiant sits in the one-and-a-quarter to one-and-a-half carat band, graded F colour (colourless) and SI2 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 1555792779. Listed at 11 retailers as of November 4, 2026, with prices from £2,230 to £4,242, a £2,012 spread on the same certified stone. Helzberg Diamonds lists it at £4,242. 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

1.29
Carat
F
Colour
SI2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1555792779
Dimensions7.15 × 5.46 × 3.77 mm
L/W Ratio1.31
Culet sizeNone
Top View
7.15 mm5.46 mm1.29 ctF / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1555792779
Side View
Table 66.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 69.0%

Caratlytics Score

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

Price History

Last verified: Nov 4
Current: £4,242 GBP|Low: £2,230 GBP|High: £4,327 GBP|Avg: £2,903 GBP|-2.0%
Helzberg Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 7, 2026
Retailer 7£2,230 GBP
Retailer 6£2,284 GBP
Retailer 8£2,404 GBP
Retailer 2£2,602 GBP
Retailer 11£2,686 GBP
Retailer 9£2,855 GBP
Retailer 10£2,908 GBP
Retailer 5£2,971 GBP
Retailer 4£3,094 GBP
Retailer 3£4,016 GBP
Helzberg Diamonds£4,242 GBP

38 data points across 11 retailers

11 retailers£2,230 GBP to £4,242 GBP

A
Cheapest Retailer
-
£2,230 GBP
A
Retailer 2
-
£2,284 GBP
View
A
Retailer 3
-
£2,404 GBP
View
A
Retailer 4
-
£2,602 GBP
View
A
Retailer 5
-
£2,686 GBP
View
A
Retailer 6
-
£2,855 GBP
View
A
Retailer 7
-
£2,908 GBP
View
A
Retailer 8
-
£2,971 GBP
View
B+
Retailer 9
-
£3,094 GBP
View
B
Retailer 10
-
£4,016 GBP
View
Most Expensive
B
Helzberg Diamonds
XZRHLLLNPINNP · Nov 6
£4,242 GBP
$5,678 USD
View
10 more retailers have this diamond
Prices start from £2,230 GBPSave up to £2,012 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
1.29ct Radiant
£2,230 GBP