CaratHunter
Plans
Round|Natural|GIA

1.50ct E SI1 Round Natural Diamond

VG • E/SI1 • GIA 1515431729

Certificate GIA 1515431729

Diamond specifications and retailer prices

From £4,335 GBP
HK$45,100 HKD
As of October 29, 2026
Save £7,204 GBP (62%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: £11,539 GBP at Diamond Quarter · As of October 29, 2026
View at Diamond Quarter

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 very-good cut grade and certified by GIA 1515431729. Listed at 24 retailers as of October 29, 2026, with prices from £4,335 to £11,539, a £7,204 spread on the same certified stone. Diamond Quarter lists it at £11,539. 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
E
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle38.5°
Pavilion angle39.8°
OriginNatural
Grading LabGIA
CertificateGIA 1515431729
Dimensions7.16 × 7.08 × 4.56 mm
L/W Ratio1.01
Star length55%
Lower girdle75%
Girdle conditionFaceted
Top View
7.16 mm7.08 mm1.50 ctE / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1515431729
Side View
Table 55.0%Crown 38.5°Girdle: STK-THKPavilion 39.8°Culet: NoneDepth 64.4%

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 29
Current: £6,034 GBP|Low: £4,267 GBP|High: £9,783 GBP|Avg: £5,625 GBP|-1.2%
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
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
Retailer 20
Retailer 21
October 30, 2026
Retailer 6£4,335 GBP
Retailer 7£4,415 GBP
Retailer 9£4,548 GBP
Retailer 16£4,621 GBP
Retailer 8£4,892 GBP
Retailer 10£4,892 GBP
Retailer 4£4,907 GBP
Retailer 3£5,299 GBP
Retailer 5£5,380 GBP
Retailer 12£5,477 GBP
Retailer 2£5,602 GBP
Retailer 21£5,602 GBP
Retailer 14£5,673 GBP
Retailer 17£5,790 GBP
Retailer 1£6,034 GBP
Retailer 13£6,060 GBP
Retailer 19£6,115 GBP
Retailer 18£6,506 GBP
Retailer 20£7,123 GBP
Retailer 15£8,196 GBP
Retailer 11£9,783 GBP

32 data points across 21 retailers

24 retailers£4,335 GBP to £11,539 GBP

Retailer 1
-
£4,219 GBP
$5,619 USD
Price last confirmed 7 days ago
A
Retailer 2
-
£4,335 GBP
HK$45,100 HKD
View
A
Retailer 3
-
£4,415 GBP
$5,880 USD
View
A
Retailer 4
-
£4,548 GBP
$6,057 USD
View
A
Retailer 5
-
£4,621 GBP
$6,154 USD
View
A
Retailer 6
-
£4,892 GBP
$6,514 USD
View
B+
Retailer 7
-
£4,892 GBP
$6,514 USD
View
Final sale: no returns
A
Retailer 8
-
£4,907 GBP
$6,535 USD
View
A
Retailer 9
-
£5,299 GBP
$7,057 USD
View
A
Retailer 10
-
£5,380 GBP
$7,165 USD
View
A
Retailer 11
-
£5,477 GBP
View
A
Retailer 12
-
£5,602 GBP
$7,460 USD
View
A
Retailer 13
-
£5,602 GBP
$7,460 USD
View
Retailer 14
-
£5,673 GBP
A$11,623 AUD
View
Price last confirmed 8 days ago
A
Retailer 15
-
£5,790 GBP
$7,710 USD
View
B+
Retailer 16
-
£6,034 GBP
View
Retailer 17
-
£6,060 GBP
€7,686 EUR
View
Price last confirmed 7 days ago
B+
Retailer 18
-
£6,115 GBP
$8,143 USD
View
Retailer 19
-
£6,482 GBP
$8,632 USD
View
Price last confirmed 7 days ago
B+
Retailer 20
-
£6,506 GBP
$8,664 USD
View
B+
Retailer 21
-
£7,123 GBP
ZAR 153,238 ZAR
View
B+
Retailer 22
-
£8,196 GBP
View
B
Retailer 23
-
£9,783 GBP
$13,028 USD
View
Most Expensive
B
Diamond Quarter
1.5SI1E1529E8EAN · Oct 29
£11,539 GBP
View
23 more retailers have this diamond
Prices start from £4,335 GBPSave up to £7,204 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
£4,335 GBP