Round|Natural|IGI

1.51ct N VVS1 Round Natural Diamond

EX • N/VVS1 • IGI 578331135

Shape and cutting style on the report: Round brilliant

Certificate IGI 578331135

Diamond specifications and retailer prices

From £2,329 GBP
As of November 5, 2026
Save £1,855 GBP (44%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: £4,185 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 N colour (tinted) and VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI 578331135. Listed at 9 retailers as of November 5, 2026, with prices from £2,329 to £4,185, a £1,855 spread on the same certified stone. NZ Jewellers lists it at £4,185. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.51
Carat
N
Colour
VVS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.1°
Pavilion angle40.9°
OriginNatural
Grading LabIGI
CertificateIGI 578331135
Dimensions7.29 × 7.33 × 4.54 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
IDEAL CUT ROUND BRILLIANT
Top View
7.29 mm7.33 mm1.51 ctN / VVS1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 578331135
Side View
Table 57.0%Crown 35.1°Girdle: MED-STKPavilion 40.9°Culet: NoneDepth 62.2%

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: £4,185 GBP|Low: £2,329 GBP|High: £4,185 GBP|Avg: £2,751 GBP
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 5, 2026
Retailer 8£2,329 GBP
Retailer 5£2,402 GBP
Retailer 7£2,402 GBP
Retailer 4£2,494 GBP
Retailer 9£2,508 GBP
Retailer 6£2,771 GBP
Retailer 3£2,794 GBP
Retailer 2£2,932 GBP
NZ Jewellers£4,185 GBP

27 data points across 9 retailers

9 retailers£2,329 GBP to £4,185 GBP

A
Cheapest Retailer
-
£2,329 GBP
A
Retailer 2
-
£2,402 GBP
View
Retailer 3
-
£2,402 GBP
View
Price last confirmed 8 days ago
A
Retailer 4
-
£2,494 GBP
View
A
Retailer 5
-
£2,508 GBP
View
B+
Retailer 6
-
£2,771 GBP
View
B+
Retailer 7
-
£2,794 GBP
View
B+
Retailer 8
-
£2,932 GBP
View
Most Expensive
B
NZ Jewellers
63c39e6e-d514-4ec3-b301-8391bfd18da8 · Nov 5
£4,185 GBP
$5,632 USD
View
8 more retailers have this diamond
Prices start from £2,329 GBPSave up to £1,855 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
£2,329 GBP