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Round|Natural|IGI

1.51ct I VVS1 Round Natural Diamond

VG • I/VVS1 • IGI 646462155

Shape and cutting style on the report: Round brilliant

Certificate IGI 646462155

Diamond specifications and retailer prices

From £2,678 GBP
As of November 5, 2026
Save £3,274 GBP (55%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £5,951 GBP at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.51ct natural round diamond

This 1.51ct natural round sits in the one-and-a-half to two carat band, graded I colour (near-colourless) and VVS1 clarity (very-very-slightly-included), with a very-good cut grade and certified by IGI 646462155. Listed at 17 retailers as of November 5, 2026, with prices from £2,678 to £5,951, a £3,274 spread on the same certified stone. NZ Jewellers lists it at £5,951. 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
I
Colour
VVS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle38.6°
Pavilion angle40.2°
OriginNatural
Grading LabIGI
CertificateIGI 646462155
Dimensions7.15 × 7.04 × 4.60 mm
L/W Ratio1.02
Girdle conditionFaceted
Culet sizePointed
Top View
7.15 mm7.04 mm1.51 ctI / VVS1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateIGI 646462155
Side View
Table 57.0%Crown 38.6°Girdle: ThickPavilion 40.2°Culet: NoneDepth 64.6%

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 5
Current: £5,951 GBP|Low: £2,678 GBP|High: £5,951 GBP|Avg: £3,685 GBP
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
November 6, 2026
Retailer 13£2,678 GBP
Retailer 16£2,894 GBP
Retailer 8£2,979 GBP
Retailer 9£3,153 GBP
Retailer 17£3,228 GBP
Retailer 11£3,379 GBP
Retailer 2£3,406 GBP
Retailer 4£3,416 GBP
Retailer 5£3,416 GBP
Retailer 6£3,416 GBP
Retailer 7£3,527 GBP
Retailer 12£3,821 GBP
Retailer 14£3,841 GBP
Retailer 3£3,942 GBP
Retailer 10£4,167 GBP
Retailer 15£5,425 GBP
NZ Jewellers£5,951 GBP

23 data points across 17 retailers

17 retailers£2,678 GBP to £5,951 GBP

A
Cheapest Retailer
-
£2,678 GBP
A
Retailer 2
-
£2,894 GBP
View
A
Retailer 3
-
£2,979 GBP
View
A
Retailer 4
-
£3,153 GBP
View
Final sale: no returns
A
Retailer 5
-
£3,228 GBP
View
A
Retailer 6
-
£3,379 GBP
View
A
Retailer 7
-
£3,406 GBP
View
A
Retailer 8
-
£3,416 GBP
View
Retailer 9
-
£3,416 GBP
View
Price last confirmed 8 days ago
A
Retailer 10
-
£3,416 GBP
View
A
Retailer 11
-
£3,527 GBP
View
A
Retailer 12
-
£3,821 GBP
View
A
Retailer 13
-
£3,841 GBP
View
A
Retailer 14
-
£3,942 GBP
View
A
Retailer 15
-
£4,167 GBP
View
A
Retailer 16
-
£5,425 GBP
View
Most Expensive
B+
NZ Jewellers
14d787f4-caef-4e97-a03b-859e77defca2 · Nov 5
£5,951 GBP
$8,010 USD
View
16 more retailers have this diamond
Prices start from £2,678 GBPSave up to £3,274 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 Round
£2,678 GBP