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Radiant|Natural|GIA

1.51ct K VVS1 Radiant Natural Diamond

ID • K/VVS1 • GIA 1

Certificate GIA 1

Diamond specifications and retailer prices

From £4,421 GBP
As of November 6, 2026
Save £1,154 GBP (21%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: £5,575 GBP at Blue Nile · As of November 5, 2026
View at Blue Nile

About this 1.51ct natural radiant diamond

This 1.51ct natural radiant sits in the one-and-a-half to two carat band, graded K colour (faint-tinted) and VVS1 clarity (very-very-slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA. Listed at 3 retailers as of November 5, 2026, with prices from £4,421 to £5,575, a £1,154 spread on the same certified stone. Blue Nile lists it at £5,575. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.51
Carat
K
Colour
VVS1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1
Dimensions7.20 × 5.74 × 3.94 mm
L/W Ratio1.25
Top View
7.20 mm5.74 mm1.51 ctK / VVS1
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1
Side View
Table 65.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 68.7%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: £5,575 GBP|Low: £4,421 GBP|High: £5,575 GBP|Avg: £4,790 GBP
Blue Nile
Retailer 2
Retailer 3
September 26, 2026
Retailer 2£4,421 GBP
Retailer 3£4,767 GBP
Blue Nile£5,575 GBP

2 data points across 3 retailers

3 retailers£4,421 GBP to £5,575 GBP

B+
Cheapest Retailer
-
£4,421 GBP
B+
Retailer 2
-
£4,767 GBP
View
Most Expensive
B
Blue Nile
11510562 · Nov 5
£5,575 GBP
$7,462 USD
View
2 more retailers have this diamond
Prices start from £4,421 GBPSave up to £1,154 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.

B+
1.51ct Radiant
£4,421 GBP