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Round|Natural|GIA

1.50ct J SI1 Round Natural Diamond

VG • J/SI1 • GIA 6555843132

Certificate GIA 6555843132

Diamond specifications and retailer prices

From £2,455 GBP
HK$25,700 HKD
As of November 1, 2026
Save £3,330 GBP (58%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: £5,786 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 6555843132. Listed at 21 retailers as of October 30, 2026, with prices from £2,455 to £5,786, a £3,330 spread on the same certified stone. NZ Jewellers lists it at £5,786. 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
FluorescenceNone
Crown angle38°
Pavilion angle40°
OriginNatural
Grading LabGIA
CertificateGIA 6555843132
Dimensions7.07 × 7.11 × 4.57 mm
L/W Ratio1.01
Girdle conditionFaceted
Key to symbols
Crystal, Cloud, Feather, Needle
Top View
7.07 mm7.11 mm1.50 ctJ / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6555843132
Side View
Table 57.0%Crown 38°Girdle: ThickPavilion 40°Culet: NoneDepth 64.5%

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: £5,786 GBP|Low: £2,436 GBP|High: £5,786 GBP|Avg: £3,622 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
November 2, 2026
Retailer 14£2,455 GBP
Retailer 15£2,766 GBP
Retailer 17£2,959 GBP
Retailer 8£3,020 GBP
Retailer 3£3,064 GBP
Retailer 18£3,065 GBP
Retailer 2£3,168 GBP
Retailer 6£3,320 GBP
Retailer 10£3,320 GBP
Retailer 7£3,507 GBP
Retailer 4£3,542 GBP
Retailer 11£3,741 GBP
Retailer 16£3,744 GBP
Retailer 9£3,832 GBP
Retailer 5£4,014 GBP
Retailer 13£4,082 GBP
Retailer 12£5,289 GBP
NZ Jewellers£5,786 GBP

39 data points across 18 retailers

21 retailers£2,455 GBP to £5,786 GBP

A
Cheapest Retailer
-
£2,455 GBP
HK$25,700 HKD
B+
Retailer 2
-
£2,766 GBP
$3,706 USD
View
B+
Retailer 3
-
£2,922 GBP
$3,915 USD
View
B+
Retailer 4
-
£2,959 GBP
$3,965 USD
View
B+
Retailer 5
-
£3,020 GBP
$4,046 USD
View
B+
Retailer 6
-
£3,064 GBP
$4,106 USD
View
Final sale: no returns
B+
Retailer 7
-
£3,065 GBP
SGD 5,550 SGD
View
Retailer 8
-
£3,098 GBP
SGD 5,609 SGD
View
Price last confirmed 7 days ago
B+
Retailer 9
-
£3,168 GBP
View
B+
Retailer 10
-
£3,320 GBP
$4,449 USD
View
B+
Retailer 11
-
£3,320 GBP
$4,449 USD
View
B
Retailer 12
-
£3,507 GBP
$4,699 USD
View
Retailer 13
-
£3,542 GBP
A$7,301 AUD
View
Price last confirmed 23 days ago
B
Retailer 14
-
£3,741 GBP
€4,774 EUR
View
B
Retailer 15
-
£3,744 GBP
View
B
Retailer 16
-
£3,832 GBP
$5,134 USD
View
Retailer 17
-
£4,014 GBP
View
Price last confirmed 33 days ago
B
Retailer 18
-
£4,082 GBP
ZAR 88,355 ZAR
View
B
Retailer 19
-
£4,720 GBP
$6,324 USD
View
B
Retailer 20
-
£5,289 GBP
View
Most Expensive
C
NZ Jewellers
aa77fa33-06bf-494f-b211-ce60b031f612 · Oct 30
£5,786 GBP
$7,752 USD
View
20 more retailers have this diamond
Prices start from £2,455 GBPSave up to £3,330 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
£2,455 GBP