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Round|Natural|IGI

1.50ct K SI2 Round Natural Diamond

EX • K/SI2 • IGI 793631559

Shape and cutting style on the report: Round brilliant

Certificate IGI 793631559

Diamond specifications and retailer prices

From £698 GBP
As of November 6, 2026
Save £956 GBP (58%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £2,210 GBP at NZ Jewellers · As of October 20, 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 SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI 793631559. Listed at 12 retailers as of November 4, 2026, with a 137% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.50
Carat
K
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.4°
Pavilion angle41.8°
OriginNatural
Grading LabIGI
CertificateIGI 793631559
Dimensions7.19 × 7.24 × 4.58 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Top View
7.19 mm7.24 mm1.50 ctK / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 793631559
Side View
Table 60.0%Crown 35.4°Girdle: MED-STKPavilion 41.8°Culet: NoneDepth 63.3%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 6
Current: £2,210 GBP|Low: £698 GBP|High: £2,210 GBP|Avg: £1,179 GBP
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 2£698 GBP
Retailer 5£869 GBP
Retailer 7£906 GBP
Retailer 9£906 GBP
Retailer 8£1,005 GBP
Retailer 6£1,045 GBP
Retailer 3£1,195 GBP
Retailer 4£1,655 GBP
NZ Jewellers£2,210 GBP

45 data points across 9 retailers

12 retailers£698 GBP to £1,655 GBP

A
Cheapest Retailer
-
£698 GBP
A
Retailer 2
-
£869 GBP
View
Retailer 3
-
£906 GBP
View
Price last confirmed 44 days ago
Retailer 4
-
£906 GBP
View
Price last confirmed 17 days ago
Retailer 5
-
£941 GBP
View
Price last confirmed 22 days ago
A
Retailer 6
-
£1,005 GBP
View
Retailer 7
-
£1,045 GBP
View
Price last confirmed 45 days ago
Retailer 8
-
£1,045 GBP
View
Price last confirmed 16 days ago
A
Retailer 9
-
£1,195 GBP
View
A
Retailer 10
-
£1,655 GBP
View
Retailer 11
-
£2,210 GBP
View
Price last confirmed 46 days ago
Most Expensive
NZ Jewellers
bcd78ca7-eaa9-40a4-a777-fe8ed795d393 · Oct 20
£2,210 GBP
$2,974 USD
View
Price last confirmed 16 days ago
11 more retailers have this diamond
Prices start from £698 GBPSave up to £956 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
£698 GBP