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Radiant|Natural|GIA

1.20ct K SI1 Radiant Natural Diamond

VG • K/SI1 • GIA 2554821058

Certificate GIA 2554821058

Diamond specifications and retailer prices

From £935 GBP
As of November 4, 2026
Save £626 GBP (40%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £1,560 GBP at Wholesale Diamonds Direct · As of November 6, 2026
View at Wholesale Diamonds Direct

About this 1.2ct natural radiant diamond

This 1.2ct natural radiant sits in the classic one-carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 2554821058. Listed at 10 retailers as of November 4, 2026, with prices from £935 to £1,560, a £626 spread on the same certified stone. Wholesale Diamonds Direct lists it at £1,560. 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
K
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2554821058
Dimensions6.95 × 5.33 × 3.68 mm
L/W Ratio1.30
Culet sizeNone
Top View
6.95 mm5.33 mm1.20 ctK / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2554821058
Side View
Table 67.0%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: £1,035 GBP|Low: £935 GBP|High: £1,716 GBP|Avg: £1,228 GBP|-6.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Wholesale Diamonds Direct
November 7, 2026
Retailer 5£935 GBP
Retailer 3£951 GBP
Retailer 4£1,002 GBP
Retailer 7£1,017 GBP
Retailer 1£1,035 GBP
Retailer 6£1,141 GBP
Retailer 8£1,311 GBP
Retailer 2£1,344 GBP
Retailer 9£1,425 GBP
Wholesale Diamonds Direct£1,560 GBP

43 data points across 10 retailers

10 retailers£935 GBP to £1,560 GBP

A
Cheapest Retailer
-
£935 GBP
A
Retailer 2
-
£951 GBP
View
A
Retailer 3
-
£1,002 GBP
View
A
Retailer 4
-
£1,017 GBP
View
A
Retailer 5
-
£1,035 GBP
View
A
Retailer 6
-
£1,141 GBP
View
A
Retailer 7
-
£1,311 GBP
View
B+
Retailer 8
-
£1,344 GBP
View
B+
Retailer 9
-
£1,425 GBP
View
Most Expensive
B+
Wholesale Diamonds Direct
387037187 · Nov 6
£1,560 GBP
$2,088 USD
View
9 more retailers have this diamond
Prices start from £935 GBPSave up to £626 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
£935 GBP