Round|Natural|GIA

1.50ct J SI2 Round Natural Diamond

VG • J/SI2 • GIA 3505012549

Certificate GIA 3505012549

Diamond specifications and retailer prices

From £2,339 GBP
As of November 6, 2026
Save £2,879 GBP (55%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: £5,451 GBP at NZ Jewellers · As of September 15, 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 very-good cut grade and certified by GIA 3505012549. Listed at 24 retailers as of November 4, 2026, with a 123% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
J
Colour
SI2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle29°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 3505012549
Dimensions7.59 × 7.57 × 4.33 mm
L/W Ratio1.00
Star length50%
Lower girdle75%
Top View
7.59 mm7.57 mm1.50 ctJ / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 3505012549
Side View
Table 63.0%Crown 29°Girdle: MED-STKPavilion 41°Culet: NoneDepth 57.1%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: £5,451 GBP|Low: £2,262 GBP|High: £5,451 GBP|Avg: £3,307 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
November 6, 2026
Retailer 10£2,339 GBP
Retailer 2£2,355 GBP
Retailer 12£2,753 GBP
Retailer 11£2,797 GBP
Retailer 14£2,887 GBP
Retailer 3£3,128 GBP
Retailer 4£3,128 GBP
Retailer 5£3,128 GBP
Retailer 7£3,149 GBP
Retailer 13£3,326 GBP
Retailer 8£3,534 GBP
Retailer 6£3,609 GBP
Retailer 9£5,218 GBP
NZ Jewellers£5,451 GBP

39 data points across 14 retailers

24 retailers£2,339 GBP to £5,218 GBP

A
Cheapest Retailer
-
£2,339 GBP
A
Retailer 2
-
£2,355 GBP
View
B+
Retailer 3
-
£2,597 GBP
View
B+
Retailer 4
-
£2,695 GBP
View
B+
Retailer 5
-
£2,753 GBP
View
B+
Retailer 6
-
£2,786 GBP
View
B+
Retailer 7
-
£2,797 GBP
View
B+
Retailer 8
-
£2,887 GBP
View
Final sale: no returns
B+
Retailer 9
-
£2,947 GBP
View
Retailer 10
-
£3,128 GBP
View
Price last confirmed 53 days ago
Retailer 11
-
£3,128 GBP
View
Price last confirmed 39 days ago
Retailer 12
-
£3,128 GBP
View
Price last confirmed 8 days ago
Retailer 13
-
£3,128 GBP
View
Price last confirmed 8 days ago
Retailer 14
-
£3,128 GBP
View
Price last confirmed 8 days ago
B+
Retailer 15
-
£3,149 GBP
View
B+
Retailer 16
-
£3,238 GBP
View
B+
Retailer 17
-
£3,534 GBP
View
Retailer 18
-
£3,609 GBP
View
Price last confirmed 39 days ago
Retailer 19
-
£3,609 GBP
View
Price last confirmed 53 days ago
Retailer 20
-
£3,609 GBP
View
Price last confirmed 10 days ago
B
Retailer 21
-
£5,218 GBP
View
Retailer 22
-
£5,451 GBP
View
Price last confirmed 39 days ago
Retailer 23
-
£5,451 GBP
View
Price last confirmed 10 days ago
Most Expensive
NZ Jewellers
1a3ef172-76ce-4287-af4b-8e9bcef123cc · Sep 15
£5,451 GBP
$7,336 USD
View
Price last confirmed 52 days ago
23 more retailers have this diamond
Prices start from £2,339 GBPSave up to £2,879 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
£2,339 GBP