Radiant|Natural|GIA

1.50ct E SI1 Radiant Natural Diamond

VG • E/SI1 • GIA 1236944160

Certificate GIA 1236944160

Diamond specifications and retailer prices

From £4,361 GBP
$5,808 USD
As of October 29, 2026
Save £3,645 GBP (46%) vs most expensive(unlock to see where)
27 retailers carry this diamond
Most expensive: £9,557 GBP at NZ Jewellers · As of October 11, 2026
View at NZ Jewellers

About this 1.5ct natural radiant diamond

This 1.5ct natural radiant 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 stated by the retailer rather than the lab and certified by GIA 1236944160. Listed at 27 retailers as of October 29, 2026, with a 84% 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 (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1236944160
Dimensions7.31 × 5.64 × 4.02 mm
L/W Ratio1.30
Culet sizeNone
Key to symbols
Crystal, Needle
Top View
7.31 mm5.64 mm1.50 ctE / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1236944160
Side View
Table 71.0%CrownGirdle: THK-THKPavilionCulet: NoneDepth 71.3%

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: £5,371 GBP|Low: £3,852 GBP|High: £8,242 GBP|Avg: £5,436 GBP|-1.5%
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
October 29, 2026
Retailer 8£4,361 GBP
Retailer 5£4,426 GBP
Retailer 4£4,515 GBP
Retailer 16£4,520 GBP
Retailer 9£4,576 GBP
Retailer 7£4,777 GBP
Retailer 18£4,798 GBP
Retailer 6£5,091 GBP
Retailer 11£5,177 GBP
Retailer 19£5,273 GBP
Retailer 1£5,371 GBP
Retailer 10£5,405 GBP
Retailer 17£5,509 GBP
Retailer 3£5,745 GBP
Retailer 20£5,745 GBP
Retailer 13£5,759 GBP
Retailer 14£5,896 GBP
Retailer 2£5,932 GBP
Retailer 15£6,958 GBP
Retailer 12£8,006 GBP

41 data points across 20 retailers

27 retailers£4,361 GBP to £8,006 GBP

A
Cheapest Retailer
-
£4,361 GBP
$5,808 USD
A
Retailer 2
-
£4,426 GBP
$5,894 USD
View
A
Retailer 3
-
£4,437 GBP
A$9,091 AUD
View
A
Retailer 4
-
£4,515 GBP
$6,012 USD
View
A
Retailer 5
-
£4,520 GBP
$6,019 USD
View
A
Retailer 6
-
£4,576 GBP
$6,094 USD
View
A
Retailer 7
-
£4,777 GBP
$6,362 USD
View
Final sale: no returns
A
Retailer 8
-
£4,778 GBP
$6,363 USD
View
Price last confirmed 17 days ago
A
Retailer 9
-
£4,798 GBP
$6,390 USD
View
A
Retailer 10
-
£5,091 GBP
$6,780 USD
View
B+
Retailer 11
-
£5,177 GBP
$6,894 USD
View
B+
Retailer 12
-
£5,177 GBP
$6,894 USD
View
Price last confirmed 19 days ago
B+
Retailer 13
-
£5,273 GBP
$7,022 USD
View
B+
Retailer 14
-
£5,358 GBP
A$10,978 AUD
View
B+
Retailer 15
-
£5,371 GBP
View
B+
Retailer 16
-
£5,375 GBP
$7,158 USD
View
Price last confirmed 28 days ago
B+
Retailer 17
-
£5,405 GBP
$7,198 USD
View
B+
Retailer 18
-
£5,509 GBP
A$11,287 AUD
View
Price last confirmed 7 days ago
B+
Retailer 19
-
£5,745 GBP
$7,650 USD
View
B+
Retailer 20
-
£5,745 GBP
$7,650 USD
View
B+
Retailer 21
-
£5,759 GBP
$7,669 USD
View
B+
Retailer 22
-
£5,896 GBP
€7,478 EUR
View
B+
Retailer 23
-
£5,932 GBP
$7,900 USD
View
B+
Retailer 24
-
£5,973 GBP
$7,954 USD
View
Price last confirmed 17 days ago
B+
Retailer 25
-
£6,958 GBP
ZAR 149,693 ZAR
View
B
Retailer 26
-
£8,006 GBP
View
Most Expensive
B
NZ Jewellers
aad98d3f-3b5f-438c-9e50-1c0b4e5b8c91 · Oct 11
£9,557 GBP
$12,727 USD
View
Price last confirmed 18 days ago
26 more retailers have this diamond
Prices start from £4,361 GBPSave up to £3,645 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 Radiant
£4,361 GBP