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Round|Natural|IGI

1.50ct J IF Round Natural Diamond

EX • J/IF • IGI 801638671

Shape and cutting style on the report: Round brilliant

Certificate IGI 801638671

Diamond specifications and retailer prices

From £3,634 GBP
$4,869 USD
As of October 30, 2026
Save £3,335 GBP (48%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £6,968 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 801638671. Listed at 18 retailers as of October 30, 2026, with prices from £3,634 to £6,968, a £3,335 spread on the same certified stone. NZ Jewellers lists it at £6,968. 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 angle34.5°
Pavilion angle40.7°
OriginNatural
Grading LabIGI
CertificateIGI 801638671
Dimensions7.31 × 7.38 × 4.55 mm
L/W Ratio1.01
Girdle conditionFaceted
Cert comments
IDEAL CUT ROUND BRILLIANT
Top View
7.31 mm7.38 mm1.50 ctJ / IF
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 801638671
Side View
Table 54.0%Crown 34.5°Girdle: MediumPavilion 40.7°Culet: NoneDepth 61.9%

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 30
Current: £6,968 GBP|Low: £3,525 GBP|High: £6,968 GBP|Avg: £4,597 GBP
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
Retailer 18
October 31, 2026
Retailer 10£3,634 GBP
Retailer 18£3,670 GBP
Retailer 15£3,846 GBP
Retailer 7£3,896 GBP
Retailer 2£4,118 GBP
Retailer 5£4,167 GBP
Retailer 6£4,167 GBP
Retailer 17£4,167 GBP
Retailer 4£4,169 GBP
Retailer 3£4,256 GBP
Retailer 9£4,282 GBP
Retailer 14£4,550 GBP
Retailer 11£4,715 GBP
Retailer 16£4,808 GBP
Retailer 13£5,074 GBP
Retailer 8£6,206 GBP
Retailer 12£6,672 GBP
NZ Jewellers£6,968 GBP

34 data points across 18 retailers

18 retailers£3,634 GBP to £6,968 GBP

A
Cheapest Retailer
-
£3,634 GBP
$4,869 USD
A
Retailer 2
-
£3,670 GBP
$4,918 USD
View
A
Retailer 3
-
£3,846 GBP
$5,153 USD
View
Final sale: no returns
A
Retailer 4
-
£3,896 GBP
$5,220 USD
View
A
Retailer 5
-
£4,118 GBP
View
A
Retailer 6
-
£4,167 GBP
$5,583 USD
View
A
Retailer 7
-
£4,167 GBP
$5,583 USD
View
A
Retailer 8
-
£4,167 GBP
$5,583 USD
View
Retailer 9
-
£4,169 GBP
View
Price last confirmed 32 days ago
A
Retailer 10
-
£4,256 GBP
$5,702 USD
View
A
Retailer 11
-
£4,282 GBP
$5,737 USD
View
B+
Retailer 12
-
£4,550 GBP
View
B+
Retailer 13
-
£4,715 GBP
€6,017 EUR
View
B+
Retailer 14
-
£4,808 GBP
$6,442 USD
View
B+
Retailer 15
-
£5,074 GBP
ZAR 109,826 ZAR
View
B+
Retailer 16
-
£6,206 GBP
$8,316 USD
View
B
Retailer 17
-
£6,672 GBP
View
Most Expensive
B
NZ Jewellers
d1f2f185-2f29-42dc-bd3e-7332a2f76f22 · Oct 30
£6,968 GBP
$9,337 USD
View
17 more retailers have this diamond
Prices start from £3,634 GBPSave up to £3,335 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
£3,634 GBP