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Round|Natural|IGI

1.51ct H VS1 Round Natural Diamond

EX • H/VS1 • IGI 835613822

Shape and cutting style on the report: Round brilliant

Certificate IGI 835613822

Diamond specifications and retailer prices

From £3,640 GBP
As of November 6, 2026
Save £4,477 GBP (55%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: £8,117 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 H colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI 835613822. Listed at 20 retailers as of November 5, 2026, with prices from £3,640 to £8,117, a £4,477 spread on the same certified stone. NZ Jewellers lists it at £8,117. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.51
Carat
H
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.5°
Pavilion angle41.8°
OriginNatural
Grading LabIGI
CertificateIGI 835613822
Dimensions7.37 × 7.39 × 4.53 mm
L/W Ratio1.00
Girdle conditionFaceted
Top View
7.37 mm7.39 mm1.51 ctH / VS1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 835613822
Side View
Table 61.0%Crown 32.5°Girdle: MED-STKPavilion 41.8°Culet: NoneDepth 61.3%

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 6
Current: £8,117 GBP|Low: £3,640 GBP|High: £8,261 GBP|Avg: £5,142 GBP|-1.7%
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
Retailer 18
Retailer 19
Retailer 20
November 6, 2026
Retailer 2£3,640 GBP
Retailer 6£4,232 GBP
Retailer 10£4,364 GBP
Retailer 9£4,479 GBP
Retailer 3£4,480 GBP
Retailer 19£4,506 GBP
Retailer 14£4,643 GBP
Retailer 5£4,823 GBP
Retailer 13£4,836 GBP
Retailer 12£4,853 GBP
Retailer 18£4,874 GBP
Retailer 4£4,928 GBP
Retailer 20£4,971 GBP
Retailer 16£4,983 GBP
Retailer 8£5,119 GBP
Retailer 11£5,254 GBP
Retailer 7£5,600 GBP
Retailer 15£5,922 GBP
Retailer 17£7,130 GBP
NZ Jewellers£8,117 GBP

18 data points across 20 retailers

20 retailers£3,640 GBP to £8,117 GBP

A
Cheapest Retailer
-
£3,640 GBP
A
Retailer 2
-
£4,232 GBP
View
A
Retailer 3
-
£4,364 GBP
View
A
Retailer 4
-
£4,479 GBP
View
Final sale: no returns
Retailer 5
-
£4,480 GBP
View
Price last confirmed 8 days ago
A
Retailer 6
-
£4,506 GBP
View
A
Retailer 7
-
£4,643 GBP
View
A
Retailer 8
-
£4,823 GBP
View
A
Retailer 9
-
£4,836 GBP
View
A
Retailer 10
-
£4,853 GBP
View
A
Retailer 11
-
£4,874 GBP
View
A
Retailer 12
-
£4,928 GBP
View
A
Retailer 13
-
£4,971 GBP
View
A
Retailer 14
-
£4,983 GBP
View
A
Retailer 15
-
£5,119 GBP
View
A
Retailer 16
-
£5,254 GBP
View
B+
Retailer 17
-
£5,600 GBP
View
B+
Retailer 18
-
£5,922 GBP
View
B
Retailer 19
-
£7,130 GBP
View
Most Expensive
B
NZ Jewellers
2bdc7762-34ac-43f0-9e16-918a37bea07f · Nov 5
£8,117 GBP
$10,925 USD
View
19 more retailers have this diamond
Prices start from £3,640 GBPSave up to £4,477 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
£3,640 GBP