Round|Natural|IGI

1.51ct H VS1 Round Natural Diamond

VG • H/VS1 • IGI 725504343

Shape and cutting style on the report: Round brilliant

Certificate IGI 725504343

Diamond specifications and retailer prices

From £2,941 GBP
As of November 6, 2026
Save £3,274 GBP (53%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: £6,326 GBP at NZ Jewellers · As of September 21, 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 H colour (near-colourless) and VS1 clarity (very-slightly-included), with a very-good cut grade and certified by IGI 725504343. Listed at 20 retailers as of November 4, 2026, with a 111% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
H
Colour
VS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.6°
Pavilion angle40.2°
OriginNatural
Grading LabIGI
CertificateIGI 725504343
Dimensions7.16 × 7.08 × 4.61 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Top View
7.16 mm7.08 mm1.51 ctH / VS1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 725504343
Side View
Table 56.0%Crown 38.6°Girdle: STK-THKPavilion 40.2°Culet: NoneDepth 64.6%

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 6
Current: £2,941 GBP|Low: £2,861 GBP|High: £6,215 GBP|Avg: £3,983 GBP|+0.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 6, 2026
Retailer 1£2,941 GBP
Retailer 11£3,413 GBP
Retailer 3£3,433 GBP
Retailer 2£3,611 GBP
Retailer 10£3,670 GBP
Retailer 4£3,782 GBP
Retailer 6£3,916 GBP
Retailer 5£4,026 GBP
Retailer 9£4,144 GBP
Retailer 8£4,289 GBP
Retailer 7£4,774 GBP
Retailer 12£6,215 GBP

36 data points across 12 retailers

20 retailers£2,941 GBP to £6,215 GBP

A
Cheapest Retailer
-
£2,941 GBP
A
Retailer 2
-
£3,309 GBP
View
A
Retailer 3
-
£3,413 GBP
View
A
Retailer 4
-
£3,433 GBP
View
A
Retailer 5
-
£3,611 GBP
View
Final sale: no returns
A
Retailer 6
-
£3,670 GBP
View
Retailer 7
-
£3,782 GBP
View
Price last confirmed 36 days ago
Retailer 8
-
£3,782 GBP
View
Price last confirmed 12 days ago
Retailer 9
-
£3,782 GBP
View
Price last confirmed 38 days ago
Retailer 10
-
£3,808 GBP
View
Price last confirmed 44 days ago
A
Retailer 11
-
£3,916 GBP
View
A
Retailer 12
-
£4,026 GBP
View
A
Retailer 13
-
£4,144 GBP
View
A
Retailer 14
-
£4,289 GBP
View
Retailer 15
-
£4,364 GBP
View
Price last confirmed 45 days ago
Retailer 16
-
£4,364 GBP
View
Price last confirmed 38 days ago
Retailer 17
-
£4,393 GBP
View
Price last confirmed 63 days ago
B+
Retailer 18
-
£4,774 GBP
View
B+
Retailer 19
-
£6,215 GBP
View
Most Expensive
NZ Jewellers
3caca463-29e7-44fc-bba7-ad7ab26e1c64 · Sep 21
£6,326 GBP
$8,514 USD
View
Price last confirmed 45 days ago
19 more retailers have this diamond
Prices start from £2,941 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
£2,941 GBP