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Radiant|Natural|GIA

1.51ct F SI2 Radiant Natural Diamond

GD • F/SI2 • GIA 6445035342

Certificate GIA 6445035342

Diamond specifications and retailer prices

From £1,999 GBP
As of November 6, 2026
Save £2,473 GBP (55%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £4,472 GBP at MOH London · As of November 4, 2026
View at MOH London

About this 1.51ct natural radiant diamond

This 1.51ct natural radiant sits in the one-and-a-half to two carat band, graded F colour (colourless) and SI2 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 6445035342. Listed at 11 retailers as of November 4, 2026, with prices from £1,999 to £4,472, a £2,473 spread on the same certified stone. MOH London lists it at £4,472. 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

1.51
Carat
F
Colour
SI2
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6445035342
Dimensions6.28 × 6.01 × 4.21 mm
L/W Ratio1.04
Top View
6.28 mm6.01 mm1.51 ctF / SI2
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6445035342
Side View
Table 65.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 70.0%

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 6
Current: £4,472 GBP|Low: £1,979 GBP|High: £4,755 GBP|Avg: £2,913 GBP|-5.9%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 7, 2026
Retailer 7£1,999 GBP
Retailer 3£2,513 GBP
Retailer 8£2,567 GBP
Retailer 5£2,764 GBP
Retailer 2£2,775 GBP
Retailer 10£2,784 GBP
Retailer 9£2,790 GBP
Retailer 6£2,870 GBP
Retailer 4£2,938 GBP
MOH London£4,472 GBP

37 data points across 10 retailers

11 retailers£1,999 GBP to £4,472 GBP

A
Cheapest Retailer
-
£1,999 GBP
A
Retailer 2
-
£2,513 GBP
View
Retailer 3
-
£2,567 GBP
View
Price last confirmed 21 days ago
B+
Retailer 4
-
£2,665 GBP
View
A
Retailer 5
-
£2,764 GBP
View
A
Retailer 6
-
£2,775 GBP
View
Retailer 7
-
£2,784 GBP
View
Price last confirmed 19 days ago
B+
Retailer 8
-
£2,790 GBP
View
A
Retailer 9
-
£2,870 GBP
View
A
Retailer 10
-
£2,938 GBP
View
Most Expensive
B+
MOH London
6B9FBA835 · Nov 4
£4,472 GBP
View
10 more retailers have this diamond
Prices start from £1,999 GBPSave up to £2,473 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
1.51ct Radiant
£1,999 GBP