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Round|Natural|IGI

1.50ct K IF Round Natural Diamond

EX • K/IF • IGI 671487509

Shape and cutting style on the report: Round brilliant

Certificate IGI 671487509

Diamond specifications and retailer prices

From £3,072 GBP
As of November 4, 2026
Save £2,524 GBP (45%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £6,138 GBP at NZ Jewellers · As of September 21, 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 K colour (faint-tinted) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI 671487509. Listed at 14 retailers as of November 4, 2026, with a 82% 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

1.50
Carat
K
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.9°
Pavilion angle40.2°
OriginNatural
Grading LabIGI
CertificateIGI 671487509
Dimensions7.49 × 7.51 × 4.33 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Top View
7.49 mm7.51 mm1.50 ctK / IF
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 671487509
Side View
Table 62.0%Crown 32.9°Girdle: MediumPavilion 40.2°Culet: NoneDepth 57.8%

Caratlytics Score

How it works →
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: £3,956 GBP|Low: £3,072 GBP|High: £5,678 GBP|Avg: £3,934 GBP|+1.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 5, 2026
Retailer 8£3,072 GBP
Retailer 5£3,266 GBP
Retailer 3£3,513 GBP
Retailer 7£3,523 GBP
Retailer 2£3,920 GBP
Retailer 1£3,956 GBP
Retailer 6£4,330 GBP
Retailer 4£5,596 GBP

39 data points across 8 retailers

14 retailers£3,072 GBP to £5,596 GBP

A
Cheapest Retailer
-
£3,072 GBP
A
Retailer 2
-
£3,266 GBP
View
A
Retailer 3
-
£3,325 GBP
View
A
Retailer 4
-
£3,513 GBP
View
Retailer 5
-
£3,523 GBP
View
Price last confirmed 36 days ago
Retailer 6
-
£3,523 GBP
View
Price last confirmed 50 days ago
Retailer 7
-
£3,523 GBP
View
Price last confirmed 38 days ago
A
Retailer 8
-
£3,920 GBP
View
A
Retailer 9
-
£3,956 GBP
View
Retailer 10
-
£4,065 GBP
View
Price last confirmed 45 days ago
Retailer 11
-
£4,065 GBP
View
Price last confirmed 38 days ago
A
Retailer 12
-
£4,330 GBP
View
B+
Retailer 13
-
£5,596 GBP
View
Most Expensive
NZ Jewellers
3c843d50-7945-432f-9b83-03aabbe55d5f · Sep 21
£6,138 GBP
$8,261 USD
View
Price last confirmed 46 days ago
13 more retailers have this diamond
Prices start from £3,072 GBPSave up to £2,524 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
£3,072 GBP