Radiant|Natural|GIA

1.50ct F SI1 Radiant Natural Diamond

EX • F/SI1 • GIA 7556198704

Certificate GIA 7556198704

Diamond specifications and retailer prices

From £4,445 GBP
$5,965 USD
As of November 1, 2026
Save £3,732 GBP (46%) vs most expensive(unlock to see where)
27 retailers carry this diamond
Most expensive: £9,495 GBP at NZ Jewellers · As of October 21, 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 F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 7556198704. Listed at 27 retailers as of October 28, 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. 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
F
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle44.6°
Pavilion angle31.97°
OriginNatural
Grading LabGIA
CertificateGIA 7556198704
Dimensions7.29 × 5.72 × 3.91 mm
L/W Ratio1.27
Girdle conditionThick
Key to symbols
Cloud, Crystal, Feather, Needle
Top View
7.29 mm5.72 mm1.50 ctF / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7556198704
Side View
Table 67.0%Crown 44.6°Girdle: STK-THKPavilion 31.97°Culet: NoneDepth 68.4%

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: Nov 1
Current: £5,311 GBP|Low: £4,351 GBP|High: £8,215 GBP|Avg: £5,772 GBP|-1.3%
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
November 2, 2026
Retailer 3£4,485 GBP
Retailer 2£4,748 GBP
Retailer 14£4,748 GBP
Retailer 4£4,765 GBP
Retailer 5£4,787 GBP
Retailer 1£5,311 GBP
Retailer 10£5,353 GBP
Retailer 16£5,444 GBP
Retailer 15£5,473 GBP
Retailer 7£5,485 GBP
Retailer 8£5,485 GBP
Retailer 6£5,671 GBP
Retailer 9£6,202 GBP
Retailer 12£6,975 GBP
Retailer 11£7,912 GBP
Retailer 13£8,177 GBP

31 data points across 16 retailers

27 retailers£4,445 GBP to £8,177 GBP

A
Cheapest Retailer
-
£4,445 GBP
$5,965 USD
A
Retailer 2
-
£4,485 GBP
$6,019 USD
View
A
Retailer 3
-
£4,748 GBP
$6,371 USD
View
A
Retailer 4
-
£4,748 GBP
$6,371 USD
View
Final sale: no returns
A
Retailer 5
-
£4,765 GBP
$6,395 USD
View
A
Retailer 6
-
£4,787 GBP
$6,424 USD
View
B+
Retailer 7
-
£5,058 GBP
$6,787 USD
View
Retailer 8
-
£5,143 GBP
$6,902 USD
View
Price last confirmed 11 days ago
B+
Retailer 9
-
£5,222 GBP
$7,008 USD
View
Retailer 10
-
£5,222 GBP
$7,008 USD
View
Price last confirmed 32 days ago
B+
Retailer 11
-
£5,311 GBP
View
B+
Retailer 12
-
£5,353 GBP
View
B+
Retailer 13
-
£5,444 GBP
$7,305 USD
View
Retailer 14
-
£5,473 GBP
A$11,300 AUD
View
Price last confirmed 11 days ago
B+
Retailer 15
-
£5,485 GBP
$7,360 USD
View
B+
Retailer 16
-
£5,485 GBP
$7,360 USD
View
B+
Retailer 17
-
£5,671 GBP
$7,610 USD
View
B+
Retailer 18
-
£5,782 GBP
$7,759 USD
View
Retailer 19
-
£5,935 GBP
$7,964 USD
View
Price last confirmed 24 days ago
Retailer 20
-
£5,935 GBP
$7,964 USD
View
Price last confirmed 12 days ago
B+
Retailer 21
-
£6,202 GBP
€7,927 EUR
View
Retailer 22
-
£6,255 GBP
$8,394 USD
View
Price last confirmed 18 days ago
B+
Retailer 23
-
£6,975 GBP
ZAR 151,215 ZAR
View
B
Retailer 24
-
£7,912 GBP
View
B
Retailer 25
-
£8,177 GBP
View
Retailer 26
-
£9,495 GBP
$12,742 USD
View
Price last confirmed 33 days ago
Most Expensive
NZ Jewellers
4fee10dc-47fc-4a7d-96dd-1f513190a552 · Oct 21
£9,495 GBP
$12,742 USD
View
Price last confirmed 12 days ago
26 more retailers have this diamond
Prices start from £4,445 GBPSave up to £3,732 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
£4,445 GBP