Round|Natural|GIA

1.50ct E SI1 Round Natural Diamond

VG • E/SI1 • GIA 1559633672

Certificate GIA 1559633672

Diamond specifications and retailer prices

From £4,058 GBP
As of November 5, 2026
Save £3,783 GBP (48%) vs most expensive(unlock to see where)
26 retailers carry this diamond
Most expensive: £9,044 GBP at NZ Jewellers · As of September 28, 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 very-good cut grade and certified by GIA 1559633672. Listed at 26 retailers as of November 4, 2026, with a 93% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
SymmetryExcellent
FluorescenceMedium
Crown angle38°
Pavilion angle40°
OriginNatural
Grading LabGIA
CertificateGIA 1559633672
Dimensions7.09 × 4.59 × 4.59 mm
L/W Ratio1.54
Culet sizeNone
Top View
7.09 mm4.59 mm1.50 ctE / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 1559633672
Side View
Table 56.0%Crown 38°Girdle: MED-THKPavilion 40°Culet: NoneDepth 64.6%

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 5
Current: £5,101 GBP|Low: £3,473 GBP|High: £7,841 GBP|Avg: £5,196 GBP|+3.1%
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
November 6, 2026
Retailer 15£4,058 GBP
Retailer 5£4,153 GBP
Retailer 8£4,272 GBP
Retailer 18£4,277 GBP
Retailer 9£4,330 GBP
Retailer 2£4,522 GBP
Retailer 13£4,523 GBP
Retailer 6£4,547 GBP
Retailer 10£4,852 GBP
Retailer 1£5,101 GBP
Retailer 7£5,151 GBP
Retailer 4£5,303 GBP
Retailer 11£5,312 GBP
Retailer 20£5,312 GBP
Retailer 3£5,483 GBP
Retailer 14£5,528 GBP
Retailer 16£5,824 GBP
Retailer 12£6,598 GBP
Retailer 17£7,516 GBP
Retailer 19£7,841 GBP

28 data points across 20 retailers

26 retailers£4,058 GBP to £7,841 GBP

A
Cheapest Retailer
-
£4,058 GBP
A
Retailer 2
-
£4,153 GBP
View
A
Retailer 3
-
£4,272 GBP
View
A
Retailer 4
-
£4,277 GBP
View
A
Retailer 5
-
£4,330 GBP
View
A
Retailer 6
-
£4,522 GBP
View
Final sale: no returns
Retailer 7
-
£4,523 GBP
View
Price last confirmed 25 days ago
A
Retailer 8
-
£4,547 GBP
View
A
Retailer 9
-
£4,680 GBP
View
Retailer 10
-
£4,852 GBP
View
Price last confirmed 23 days ago
Retailer 11
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£4,899 GBP
View
Price last confirmed 39 days ago
Retailer 12
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£4,899 GBP
View
Price last confirmed 29 days ago
A
Retailer 13
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£5,101 GBP
View
A
Retailer 14
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£5,151 GBP
View
Retailer 15
-
£5,303 GBP
View
Price last confirmed 33 days ago
A
Retailer 16
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£5,312 GBP
View
A
Retailer 17
-
£5,312 GBP
View
B+
Retailer 18
-
£5,483 GBP
View
A
Retailer 19
-
£5,528 GBP
View
Retailer 20
-
£5,653 GBP
View
Price last confirmed 39 days ago
B+
Retailer 21
-
£5,824 GBP
View
B+
Retailer 22
-
£6,598 GBP
View
B
Retailer 23
-
£7,516 GBP
View
B
Retailer 24
-
£7,841 GBP
View
Retailer 25
-
£9,044 GBP
View
Price last confirmed 34 days ago
Most Expensive
NZ Jewellers
85d0aa70-be43-4a96-8d32-61fb0e0511a0 · Sep 28
£9,044 GBP
$12,173 USD
View
Price last confirmed 39 days ago
25 more retailers have this diamond
Prices start from £4,058 GBPSave up to £3,783 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
£4,058 GBP