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Round|Natural|IGI

1.50ct J IF Round Natural Diamond

EX • J/IF • IGI 821603857

Shape and cutting style on the report: Round brilliant

Certificate IGI 821603857

Diamond specifications and retailer prices

From £3,229 GBP
₹412,032 INR
As of October 31, 2026
Save £3,899 GBP (55%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £7,127 GBP at NZ Jewellers · As of October 30, 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 J colour (near-colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI 821603857. Listed at 17 retailers as of October 30, 2026, with prices from £3,229 to £7,127, a £3,899 spread on the same certified stone. NZ Jewellers lists it at £7,127. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.50
Carat
J
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.1°
Pavilion angle41°
OriginNatural
Grading LabIGI
CertificateIGI 821603857
Dimensions7.23 × 7.28 × 4.54 mm
L/W Ratio1.01
Girdle conditionFaceted
Cert comments
IDEAL CUT ROUND BRILLIANT
Top View
7.23 mm7.28 mm1.50 ctJ / IF
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 821603857
Side View
Table 59.0%Crown 36.1°Girdle: MED-STKPavilion 41°Culet: NoneDepth 62.5%

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: Oct 31
Current: £7,127 GBP|Low: £3,228 GBP|High: £7,127 GBP|Avg: £4,691 GBP|+7.3%
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
October 31, 2026
Retailer 10£3,229 GBP
Retailer 4£3,706 GBP
Retailer 5£3,717 GBP
Retailer 9£3,933 GBP
Retailer 7£3,982 GBP
Retailer 13£4,211 GBP
Retailer 12£4,226 GBP
Retailer 3£4,262 GBP
Retailer 15£4,262 GBP
Retailer 17£4,262 GBP
Retailer 8£4,377 GBP
Retailer 14£4,569 GBP
Retailer 6£4,673 GBP
Retailer 11£4,917 GBP
Retailer 2£5,238 GBP
Retailer 16£6,823 GBP
NZ Jewellers£7,127 GBP

31 data points across 17 retailers

17 retailers£3,229 GBP to £7,127 GBP

A
Cheapest Retailer
-
£3,229 GBP
₹412,032 INR
A
Retailer 2
-
£3,706 GBP
$4,965 USD
View
A
Retailer 3
-
£3,717 GBP
$4,980 USD
View
A
Retailer 4
-
£3,933 GBP
$5,270 USD
View
Final sale: no returns
A
Retailer 5
-
£3,982 GBP
$5,335 USD
View
A
Retailer 6
-
£4,211 GBP
View
A
Retailer 7
-
£4,226 GBP
View
B+
Retailer 8
-
£4,262 GBP
$5,710 USD
View
B+
Retailer 9
-
£4,262 GBP
$5,710 USD
View
A
Retailer 10
-
£4,262 GBP
$5,710 USD
View
B+
Retailer 11
-
£4,377 GBP
$5,865 USD
View
B+
Retailer 12
-
£4,569 GBP
€5,830 EUR
View
B+
Retailer 13
-
£4,673 GBP
View
B+
Retailer 14
-
£4,917 GBP
$6,588 USD
View
B+
Retailer 15
-
£5,238 GBP
ZAR 113,383 ZAR
View
B
Retailer 16
-
£6,823 GBP
View
Most Expensive
B
NZ Jewellers
29faedc9-9763-476a-b987-c2ebc2a4f4f7 · Oct 30
£7,127 GBP
$9,550 USD
View
16 more retailers have this diamond
Prices start from £3,229 GBPSave up to £3,899 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
£3,229 GBP