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Round|Natural|GIA

1.50ct J SI1 Round Natural Diamond

EX • J/SI1 • GIA 7501741514

Certificate GIA 7501741514

Diamond specifications and retailer prices

From £2,847 GBP
HK$29,800 HKD
As of November 1, 2026
Save £3,563 GBP (56%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: £6,410 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 SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 7501741514. Listed at 23 retailers as of October 30, 2026, with prices from £2,847 to £6,410, a £3,563 spread on the same certified stone. NZ Jewellers lists it at £6,410. 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
J
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.5°
Pavilion angle41.6°
OriginNatural
Grading LabGIA
CertificateGIA 7501741514
Dimensions7.36 × 7.32 × 4.53 mm
L/W Ratio1.01
Star length55%
Lower girdle80%
Cert comments
Additional clouds are not shown. Pinpoints are not shown.
Key to symbols
Feather, Crystal, Cloud
Top View
7.36 mm7.32 mm1.50 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7501741514
Side View
Table 59.0%Crown 32.5°Girdle: STK-STKPavilion 41.6°Culet: NoneDepth 61.8%

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 1
Current: £6,410 GBP|Low: £2,818 GBP|High: £6,410 GBP|Avg: £4,109 GBP
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
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Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
Retailer 20
Retailer 21
Retailer 22
November 2, 2026
Retailer 20£2,847 GBP
Retailer 16£2,902 GBP
Retailer 12£3,209 GBP
Retailer 8£3,262 GBP
Retailer 9£3,396 GBP
Retailer 22£3,433 GBP
Retailer 21£3,463 GBP
Retailer 13£3,605 GBP
Retailer 11£3,618 GBP
Retailer 4£3,679 GBP
Retailer 5£3,679 GBP
Retailer 6£3,679 GBP
Retailer 3£3,792 GBP
Retailer 7£3,807 GBP
Retailer 18£4,072 GBP
Retailer 10£4,245 GBP
Retailer 2£4,395 GBP
Retailer 19£4,523 GBP
Retailer 15£5,400 GBP
Retailer 14£5,551 GBP
Retailer 17£5,860 GBP
NZ Jewellers£6,410 GBP

22 data points across 22 retailers

23 retailers£2,847 GBP to £6,410 GBP

A
Cheapest Retailer
-
£2,847 GBP
HK$29,800 HKD
A
Retailer 2
-
£2,902 GBP
₹370,350 INR
View
B+
Retailer 3
-
£3,209 GBP
$4,300 USD
View
B+
Retailer 4
-
£3,262 GBP
SGD 5,906 SGD
View
B+
Retailer 5
-
£3,396 GBP
$4,550 USD
View
Final sale: no returns
B+
Retailer 6
-
£3,433 GBP
$4,600 USD
View
B+
Retailer 7
-
£3,463 GBP
$4,640 USD
View
B+
Retailer 8
-
£3,605 GBP
View
B+
Retailer 9
-
£3,618 GBP
SGD 6,551 SGD
View
B+
Retailer 10
-
£3,679 GBP
$4,930 USD
View
B+
Retailer 11
-
£3,679 GBP
$4,930 USD
View
B+
Retailer 12
-
£3,679 GBP
$4,930 USD
View
B
Retailer 13
-
£3,792 GBP
$5,081 USD
View
B
Retailer 14
-
£3,807 GBP
$5,101 USD
View
Retailer 15
-
£3,866 GBP
A$7,969 AUD
View
Price last confirmed 23 days ago
B
Retailer 16
-
£4,072 GBP
€5,196 EUR
View
B
Retailer 17
-
£4,245 GBP
$5,688 USD
View
B+
Retailer 18
-
£4,395 GBP
View
B
Retailer 19
-
£4,523 GBP
ZAR 97,898 ZAR
View
B
Retailer 20
-
£5,400 GBP
$7,235 USD
View
B
Retailer 21
-
£5,551 GBP
$7,438 USD
View
B
Retailer 22
-
£5,860 GBP
View
Most Expensive
B
NZ Jewellers
d1e5f904-eb39-4ad7-9a09-37977d7083f9 · Oct 30
£6,410 GBP
$8,589 USD
View
22 more retailers have this diamond
Prices start from £2,847 GBPSave up to £3,563 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
£2,847 GBP