Round|Natural|GIA

1.50ct E SI1 Round Natural Diamond

EX • E/SI1 • GIA 6535610795

Certificate GIA 6535610795

Diamond specifications and retailer prices

From £4,143 GBP
HK$43,100 HKD
As of October 30, 2026
Save £3,992 GBP (49%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: £9,351 GBP at NZ Jewellers · As of October 17, 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 E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6535610795. Listed at 22 retailers as of October 28, 2026, with a 96% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
E
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle36.5°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 6535610795
Dimensions7.29 × 7.22 × 4.55 mm
L/W Ratio1.01
Top View
7.29 mm7.22 mm1.50 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6535610795
Side View
Table 56.0%Crown 36.5°Girdle: THN-STKPavilion 40.6°Culet: NoneDepth 62.7%

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 30
Current: £4,143 GBP|Low: £4,143 GBP|High: £8,173 GBP|Avg: £5,928 GBP
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
October 30, 2026
Retailer 1£4,143 GBP
Retailer 6£4,466 GBP
Retailer 13£4,845 GBP
Retailer 2£5,015 GBP
Retailer 3£5,160 GBP
Retailer 8£5,204 GBP
Retailer 12£5,427 GBP
Retailer 4£5,632 GBP
Retailer 5£5,713 GBP
Retailer 7£6,100 GBP
Retailer 10£6,808 GBP
Retailer 11£7,802 GBP
Retailer 9£8,135 GBP

30 data points across 13 retailers

22 retailers£4,143 GBP to £8,135 GBP

A
Cheapest Retailer
-
£4,143 GBP
HK$43,100 HKD
A
Retailer 2
-
£4,466 GBP
₹566,348 INR
View
Retailer 3
-
£4,648 GBP
$6,189 USD
View
Price last confirmed 15 days ago
A
Retailer 4
-
£4,845 GBP
$6,452 USD
View
Retailer 5
-
£4,887 GBP
SGD 8,794 SGD
View
Price last confirmed 18 days ago
A
Retailer 6
-
£5,015 GBP
SGD 9,024 SGD
View
A
Retailer 7
-
£5,160 GBP
$6,872 USD
View
Final sale: no returns
Retailer 8
-
£5,161 GBP
$6,873 USD
View
Price last confirmed 14 days ago
A
Retailer 9
-
£5,167 GBP
$6,881 USD
View
A
Retailer 10
-
£5,170 GBP
$6,885 USD
View
A
Retailer 11
-
£5,204 GBP
View
Retailer 12
-
£5,427 GBP
A$11,118 AUD
View
Price last confirmed 8 days ago
Retailer 13
-
£5,591 GBP
$7,446 USD
View
Price last confirmed 12 days ago
A
Retailer 14
-
£5,632 GBP
$7,500 USD
View
Retailer 15
-
£5,677 GBP
$7,560 USD
View
Price last confirmed 14 days ago
B+
Retailer 16
-
£5,713 GBP
$7,608 USD
View
B+
Retailer 17
-
£6,100 GBP
€7,736 EUR
View
Retailer 18
-
£6,451 GBP
$8,591 USD
View
Price last confirmed 11 days ago
B+
Retailer 19
-
£6,808 GBP
ZAR 146,473 ZAR
View
B+
Retailer 20
-
£7,802 GBP
View
B+
Retailer 21
-
£8,135 GBP
View
Most Expensive
NZ Jewellers
ba90496d-cc83-423f-9827-fd20d5a9f46a · Oct 17
£9,351 GBP
$12,453 USD
View
Price last confirmed 13 days ago
21 more retailers have this diamond
Prices start from £4,143 GBPSave up to £3,992 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
£4,143 GBP