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Round|Natural|GIA

1.50ct J SI1 Round Natural Diamond

VG • J/SI1 • GIA 2537839680

Certificate GIA 2537839680

Diamond specifications and retailer prices

From £2,398 GBP
HK$25,100 HKD
As of October 31, 2026
Save £3,240 GBP (57%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: £5,638 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 very-good cut grade and certified by GIA 2537839680. Listed at 20 retailers as of October 30, 2026, with prices from £2,398 to £5,638, a £3,240 spread on the same certified stone. NZ Jewellers lists it at £5,638. 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
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceMedium
Crown angle38°
Pavilion angle40°
OriginNatural
Grading LabGIA
CertificateGIA 2537839680
Dimensions7.13 × 7.03 × 4.58 mm
L/W Ratio1.01
Top View
7.13 mm7.03 mm1.50 ctJ / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceMedium
CertificateGIA 2537839680
Side View
Table 56.0%Crown 38°Girdle: ThickPavilion 40°Culet: NoneDepth 64.7%

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: £5,638 GBP|Low: £2,369 GBP|High: £5,638 GBP|Avg: £3,568 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
November 1, 2026
Retailer 9£2,398 GBP
Retailer 12£2,648 GBP
Retailer 14£2,806 GBP
Retailer 3£2,987 GBP
Retailer 15£2,987 GBP
Retailer 2£3,084 GBP
Retailer 5£3,236 GBP
Retailer 6£3,236 GBP
Retailer 4£3,452 GBP
Retailer 10£3,662 GBP
Retailer 13£3,668 GBP
Retailer 7£3,734 GBP
Retailer 8£3,978 GBP
Retailer 11£5,182 GBP
NZ Jewellers£5,638 GBP

42 data points across 15 retailers

20 retailers£2,398 GBP to £5,638 GBP

A
Cheapest Retailer
-
£2,398 GBP
HK$25,100 HKD
B+
Retailer 2
-
£2,648 GBP
$3,548 USD
View
B+
Retailer 3
-
£2,806 GBP
$3,760 USD
View
B+
Retailer 4
-
£2,847 GBP
$3,815 USD
View
B+
Retailer 5
-
£2,987 GBP
$4,002 USD
View
Final sale: no returns
B+
Retailer 6
-
£2,987 GBP
SGD 5,409 SGD
View
B+
Retailer 7
-
£3,017 GBP
SGD 5,463 SGD
View
B+
Retailer 8
-
£3,084 GBP
View
B+
Retailer 9
-
£3,236 GBP
$4,336 USD
View
B+
Retailer 10
-
£3,236 GBP
$4,336 USD
View
B+
Retailer 11
-
£3,243 GBP
$4,346 USD
View
B+
Retailer 12
-
£3,247 GBP
$4,350 USD
View
Retailer 13
-
£3,452 GBP
A$7,115 AUD
View
Price last confirmed 22 days ago
B
Retailer 14
-
£3,662 GBP
€4,673 EUR
View
B
Retailer 15
-
£3,668 GBP
View
B
Retailer 16
-
£3,734 GBP
$5,003 USD
View
B
Retailer 17
-
£3,978 GBP
ZAR 86,105 ZAR
View
B
Retailer 18
-
£4,600 GBP
$6,163 USD
View
B
Retailer 19
-
£5,182 GBP
View
Most Expensive
C
NZ Jewellers
92a0c04c-1f2f-4945-a9e1-6f9b170ec050 · Oct 30
£5,638 GBP
$7,554 USD
View
19 more retailers have this diamond
Prices start from £2,398 GBPSave up to £3,240 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
£2,398 GBP