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Round|Natural|GIA

1.50ct J SI2 Round Natural Diamond

EX • J/SI2 • GIA 5503219397

Certificate GIA 5503219397

Diamond specifications and retailer prices

From £3,615 GBP
As of November 1, 2026
Save £4,275 GBP (54%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: £7,890 GBP at NZ Jewellers · As of November 5, 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 SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 5503219397. Listed at 19 retailers as of November 1, 2026, with prices from £3,615 to £7,890, a £4,275 spread on the same certified stone. NZ Jewellers lists it at £7,890. 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
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 5503219397
Dimensions7.47 × 7.42 × 4.44 mm
L/W Ratio1.01
Star length50%
Lower girdle80%
Top View
7.47 mm7.42 mm1.50 ctJ / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5503219397
Side View
Table 59.0%Crown 32°Girdle: MED-STKPavilion 41°Culet: NoneDepth 59.6%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: £7,890 GBP|Low: £3,287 GBP|High: £7,890 GBP|Avg: £5,001 GBP
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 5, 2026
Retailer 6£3,615 GBP
Retailer 7£3,945 GBP
Retailer 8£4,274 GBP
Retailer 10£4,274 GBP
Retailer 11£4,274 GBP
Retailer 4£4,451 GBP
Retailer 2£4,846 GBP
Retailer 9£4,931 GBP
Retailer 3£5,202 GBP
Retailer 5£6,931 GBP
NZ Jewellers£7,890 GBP

41 data points across 11 retailers

19 retailers£3,615 GBP to £7,890 GBP

B+
Cheapest Retailer
-
£3,615 GBP
B+
Retailer 2
-
£3,623 GBP
View
B+
Retailer 3
-
£3,727 GBP
View
B
Retailer 4
-
£3,945 GBP
View
Final sale: no returns
B
Retailer 5
-
£3,977 GBP
View
B
Retailer 6
-
£3,978 GBP
View
B
Retailer 7
-
£4,274 GBP
View
Retailer 8
-
£4,274 GBP
View
Price last confirmed 8 days ago
B
Retailer 9
-
£4,274 GBP
View
B
Retailer 10
-
£4,451 GBP
View
B
Retailer 11
-
£4,505 GBP
View
B
Retailer 12
-
£4,770 GBP
View
B
Retailer 13
-
£4,770 GBP
View
B
Retailer 14
-
£4,846 GBP
View
B
Retailer 15
-
£4,926 GBP
View
B
Retailer 16
-
£4,931 GBP
View
Retailer 17
-
£5,202 GBP
View
Price last confirmed 14 days ago
B
Retailer 18
-
£6,931 GBP
View
Most Expensive
B
NZ Jewellers
56214608-346b-49f2-9107-0c6052c58516 · Nov 5
£7,890 GBP
$10,619 USD
View
18 more retailers have this diamond
Prices start from £3,615 GBPSave up to £4,275 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.

B+
1.50ct Round
£3,615 GBP