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Radiant|Natural|IGI

1.50ct K SI2 Radiant Natural Diamond

VG • K/SI2 • IGI 805628357

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI 805628357

Diamond specifications and retailer prices

From £1,907 GBP
As of November 6, 2026
Save £2,061 GBP (52%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £3,968 GBP at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.5ct natural radiant diamond

This 1.5ct natural radiant sits in the one-and-a-half to two carat band, graded K colour (faint-tinted) and SI2 clarity (slightly-included), with a very-good cut grade and certified by IGI 805628357. Listed at 10 retailers as of November 5, 2026, with prices from £1,907 to £3,968, a £2,061 spread on the same certified stone. NZ Jewellers lists it at £3,968. 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

1.50
Carat
K
Colour
SI2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.4°
Pavilion angle33.3°
OriginNatural
Grading LabIGI
CertificateIGI 805628357
Dimensions7.85 × 5.56 × 3.91 mm
L/W Ratio1.41
Top View
7.85 mm5.56 mm1.50 ctK / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 805628357
Side View
Table 69.0%Crown 36.4°Girdle: ThickPavilion 33.3°CuletDepth 70.3%

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: £3,968 GBP|Low: £1,907 GBP|High: £3,968 GBP|Avg: £2,724 GBP
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 2£1,907 GBP
Retailer 3£2,270 GBP
Retailer 6£2,278 GBP
Retailer 9£2,282 GBP
Retailer 8£2,365 GBP
Retailer 5£2,628 GBP
Retailer 4£2,774 GBP
Retailer 7£3,799 GBP
NZ Jewellers£3,968 GBP

41 data points across 9 retailers

10 retailers£1,907 GBP to £3,968 GBP

A
Cheapest Retailer
-
£1,907 GBP
B+
Retailer 2
-
£2,270 GBP
View
B+
Retailer 3
-
£2,278 GBP
View
B+
Retailer 4
-
£2,282 GBP
View
B+
Retailer 5
-
£2,365 GBP
View
B+
Retailer 6
-
£2,384 GBP
View
B+
Retailer 7
-
£2,628 GBP
View
B+
Retailer 8
-
£2,774 GBP
View
B
Retailer 9
-
£3,799 GBP
View
Most Expensive
B
NZ Jewellers
0b63c881-ea09-4ee3-9a73-2b52b5393e56 · Nov 5
£3,968 GBP
$5,311 USD
View
9 more retailers have this diamond
Prices start from £1,907 GBPSave up to £2,061 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 Radiant
£1,907 GBP