Round|Natural|IGI

1.51ct D VVS1 Round Natural Diamond

EX • D/VVS1 • IGI 778649425

Shape and cutting style on the report: Round brilliant

Certificate IGI 778649425

Diamond specifications and retailer prices

From £8,214 GBP
As of November 4, 2026
Save £4,234 GBP (34%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £13,368 GBP at NZ Jewellers · As of October 20, 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 D colour (colourless) and VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI 778649425. Listed at 13 retailers as of November 4, 2026, with a 52% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.51
Carat
D
Colour
VVS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle34.8°
Pavilion angle40.9°
OriginNatural
Grading LabIGI
CertificateIGI 778649425
Dimensions7.38 × 7.47 × 4.57 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
IDEAL CUT ROUND BRILLIANT
Top View
7.38 mm7.47 mm1.51 ctD / VVS1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateIGI 778649425
Side View
Table 55.0%Crown 34.8°Girdle: THN-MEDPavilion 40.9°Culet: NoneDepth 61.7%

Caratlytics Score

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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: £13,368 GBP|Low: £8,145 GBP|High: £16,382 GBP|Avg: £10,967 GBP|-1.1%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 4, 2026
Retailer 11£8,214 GBP
Retailer 5£8,545 GBP
Retailer 10£8,689 GBP
Retailer 9£8,822 GBP
Retailer 12£9,591 GBP
Retailer 8£9,788 GBP
Retailer 6£10,029 GBP
Retailer 3£11,067 GBP
Retailer 7£11,742 GBP
Retailer 2£12,448 GBP
NZ Jewellers£13,368 GBP
Retailer 4£16,382 GBP

36 data points across 12 retailers

13 retailers£8,214 GBP to £12,448 GBP

A
Cheapest Retailer
-
£8,214 GBP
A
Retailer 2
-
£8,545 GBP
View
A
Retailer 3
-
£8,689 GBP
View
A
Retailer 4
-
£8,822 GBP
View
Final sale: no returns
Retailer 5
-
£9,591 GBP
View
Price last confirmed 14 days ago
Retailer 6
-
£9,739 GBP
View
Price last confirmed 21 days ago
A
Retailer 7
-
£9,788 GBP
View
A
Retailer 8
-
£10,029 GBP
View
Retailer 9
-
£10,073 GBP
View
Price last confirmed 47 days ago
Retailer 10
-
£11,067 GBP
View
Price last confirmed 15 days ago
A
Retailer 11
-
£11,742 GBP
View
A
Retailer 12
-
£12,448 GBP
View
Most Expensive
NZ Jewellers
44b51075-e617-4632-8193-4a559ab3a3a8 · Oct 20
£13,368 GBP
$18,047 USD
View
Price last confirmed 15 days ago
12 more retailers have this diamond
Prices start from £8,214 GBPSave up to £4,234 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
£8,214 GBP