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Round|Natural|IGI

1.50ct I IF Round Natural Diamond

EX • I/IF • IGI 809656838

Shape and cutting style on the report: Round brilliant

Certificate IGI 809656838

Diamond specifications and retailer prices

From £3,433 GBP
As of November 1, 2026
Save £3,286 GBP (49%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £6,718 GBP at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.5ct natural round diamond

This 1.5ct natural round sits in the one-and-a-half to two carat band, graded I colour (near-colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI 809656838. Listed at 17 retailers as of November 1, 2026, with prices from £3,433 to £6,718, a £3,286 spread on the same certified stone. NZ Jewellers lists it at £6,718. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.50
Carat
I
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle35.7°
Pavilion angle40.9°
OriginNatural
Grading LabIGI
CertificateIGI 809656838
Dimensions7.20 × 7.28 × 4.51 mm
L/W Ratio1.01
Girdle conditionFaceted
Top View
7.20 mm7.28 mm1.50 ctI / IF
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateIGI 809656838
Side View
Table 61.0%Crown 35.7°Girdle: Slightly ThickPavilion 40.9°Culet: NoneDepth 62.3%

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 1
Current: £6,718 GBP|Low: £3,433 GBP|High: £6,822 GBP|Avg: £4,285 GBP|-1.5%
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 6£3,433 GBP
Retailer 16£3,493 GBP
Retailer 7£3,582 GBP
Retailer 8£3,683 GBP
Retailer 9£3,684 GBP
Retailer 2£3,743 GBP
Retailer 10£3,763 GBP
Retailer 12£3,974 GBP
Retailer 17£4,017 GBP
Retailer 5£4,032 GBP
Retailer 13£4,199 GBP
Retailer 15£4,251 GBP
Retailer 14£4,635 GBP
Retailer 11£4,901 GBP
Retailer 4£5,955 GBP
Retailer 3£6,405 GBP
NZ Jewellers£6,718 GBP

11 data points across 17 retailers

17 retailers£3,433 GBP to £6,718 GBP

A
Cheapest Retailer
-
£3,433 GBP
A
Retailer 2
-
£3,493 GBP
View
A
Retailer 3
-
£3,582 GBP
View
A
Retailer 4
-
£3,683 GBP
View
A
Retailer 5
-
£3,684 GBP
View
A
Retailer 6
-
£3,743 GBP
View
A
Retailer 7
-
£3,763 GBP
View
A
Retailer 8
-
£3,974 GBP
View
A
Retailer 9
-
£4,017 GBP
View
A
Retailer 10
-
£4,032 GBP
View
A
Retailer 11
-
£4,199 GBP
View
A
Retailer 12
-
£4,251 GBP
View
A
Retailer 13
-
£4,635 GBP
View
A
Retailer 14
-
£4,901 GBP
View
A
Retailer 15
-
£5,955 GBP
View
B+
Retailer 16
-
£6,405 GBP
View
Most Expensive
B+
NZ Jewellers
01df6e4f-7235-489c-8cba-e9394afa4bbe · Nov 5
£6,718 GBP
$9,042 USD
View
16 more retailers have this diamond
Prices start from £3,433 GBPSave up to £3,286 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
1.50ct Round
£3,433 GBP