CaratHunter
Plans
Round|Natural|GIA

1.50ct J SI1 Round Natural Diamond

EX • J/SI1 • GIA 6551696109

Certificate GIA 6551696109

Diamond specifications and retailer prices

From £2,732 GBP
HK$28,600 HKD
As of October 31, 2026
Save £3,407 GBP (55%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: £6,139 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 6551696109. Listed at 22 retailers as of October 30, 2026, with prices from £2,732 to £6,139, a £3,407 spread on the same certified stone. NZ Jewellers lists it at £6,139. 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
FluorescenceFaint
Crown angle36°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 6551696109
Dimensions7.26 × 7.21 × 4.54 mm
L/W Ratio1.01
Culet sizeNone
Key to symbols
Cloud, Feather, Crystal, Needle
Top View
7.26 mm7.21 mm1.50 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6551696109
Side View
Table 57.0%Crown 36°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 62.8%

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: Oct 31
Current: £6,139 GBP|Low: £2,704 GBP|High: £6,139 GBP|Avg: £4,103 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
Retailer 19
Retailer 20
Retailer 21
Retailer 22
October 31, 2026
Retailer 16£2,732 GBP
Retailer 13£2,786 GBP
Retailer 11£3,073 GBP
Retailer 8£3,252 GBP
Retailer 17£3,325 GBP
Retailer 7£3,364 GBP
Retailer 10£3,471 GBP
Retailer 20£3,481 GBP
Retailer 4£3,523 GBP
Retailer 5£3,523 GBP
Retailer 22£3,523 GBP
Retailer 18£3,636 GBP
Retailer 21£3,932 GBP
Retailer 6£3,934 GBP
Retailer 9£4,066 GBP
Retailer 19£4,222 GBP
Retailer 15£4,253 GBP
Retailer 2£4,331 GBP
Retailer 14£5,180 GBP
Retailer 12£5,325 GBP
Retailer 3£5,642 GBP
NZ Jewellers£6,139 GBP

20 data points across 22 retailers

22 retailers£2,732 GBP to £6,139 GBP

A
Cheapest Retailer
-
£2,732 GBP
HK$28,600 HKD
A
Retailer 2
-
£2,786 GBP
₹355,518 INR
View
B+
Retailer 3
-
£3,073 GBP
$4,117 USD
View
B+
Retailer 4
-
£3,252 GBP
$4,357 USD
View
Final sale: no returns
B+
Retailer 5
-
£3,325 GBP
$4,455 USD
View
B+
Retailer 6
-
£3,364 GBP
SGD 6,091 SGD
View
B+
Retailer 7
-
£3,471 GBP
SGD 6,284 SGD
View
B+
Retailer 8
-
£3,481 GBP
View
B+
Retailer 9
-
£3,523 GBP
$4,721 USD
View
B+
Retailer 10
-
£3,523 GBP
$4,721 USD
View
B+
Retailer 11
-
£3,523 GBP
$4,721 USD
View
B+
Retailer 12
-
£3,636 GBP
$4,872 USD
View
Retailer 13
-
£3,788 GBP
A$7,808 AUD
View
Price last confirmed 22 days ago
B+
Retailer 14
-
£3,932 GBP
€5,018 EUR
View
B
Retailer 15
-
£3,934 GBP
View
B
Retailer 16
-
£4,066 GBP
$5,448 USD
View
B+
Retailer 17
-
£4,222 GBP
View
B+
Retailer 18
-
£4,331 GBP
ZAR 93,757 ZAR
View
B
Retailer 19
-
£5,180 GBP
$6,940 USD
View
B
Retailer 20
-
£5,325 GBP
$7,135 USD
View
B
Retailer 21
-
£5,642 GBP
View
Most Expensive
B
NZ Jewellers
f38c7e27-58e3-4b8b-a85d-8d89340a845f · Oct 30
£6,139 GBP
$8,226 USD
View
21 more retailers have this diamond
Prices start from £2,732 GBPSave up to £3,407 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
£2,732 GBP