Radiant|Natural|GIA

1.50ct H SI1 Radiant Natural Diamond

GD • H/SI1 • GIA 3525840961

Certificate GIA 3525840961

Diamond specifications and retailer prices

From £3,635 GBP
$4,870 USD
As of October 28, 2026
Save £4,296 GBP (54%) vs most expensive(unlock to see where)
29 retailers carry this diamond
Most expensive: £7,931 GBP at NZ Jewellers · As of October 30, 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 H colour (near-colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 3525840961. Listed at 29 retailers as of October 28, 2026, with prices from £3,635 to £7,931, a £4,296 spread on the same certified stone. NZ Jewellers lists it at £7,931. 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
H
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 3525840961
Dimensions7.31 × 5.75 × 3.93 mm
L/W Ratio1.27
Top View
7.31 mm5.75 mm1.50 ctH / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 3525840961
Side View
Table 67.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 68.3%

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 28
Current: £7,931 GBP|Low: £3,635 GBP|High: £7,931 GBP|Avg: £4,936 GBP
NZ Jewellers
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
November 2, 2026
Retailer 5£3,635 GBP
Retailer 8£3,747 GBP
Retailer 4£3,965 GBP
Retailer 10£3,998 GBP
Retailer 9£4,012 GBP
Retailer 3£4,296 GBP
Retailer 16£4,296 GBP
Retailer 17£4,296 GBP
Retailer 2£4,468 GBP
Retailer 6£4,547 GBP
Retailer 12£4,549 GBP
Retailer 7£4,687 GBP
Retailer 18£4,956 GBP
Retailer 11£5,180 GBP
Retailer 14£5,826 GBP
Retailer 13£6,986 GBP
Retailer 15£7,417 GBP
NZ Jewellers£7,931 GBP

30 data points across 18 retailers

29 retailers£3,635 GBP to £7,931 GBP

Retailer 1
-
£3,387 GBP
$4,539 USD
Price last confirmed 90 days ago
A
Retailer 2
-
£3,635 GBP
$4,870 USD
View
B+
Retailer 3
-
£3,747 GBP
$5,020 USD
View
B+
Retailer 4
-
£3,769 GBP
$5,050 USD
View
B+
Retailer 5
-
£3,844 GBP
$5,151 USD
View
B+
Retailer 6
-
£3,965 GBP
$5,313 USD
View
Final sale: no returns
B+
Retailer 7
-
£3,998 GBP
$5,357 USD
View
B+
Retailer 8
-
£4,012 GBP
$5,375 USD
View
B+
Retailer 9
-
£4,030 GBP
A$8,308 AUD
View
B+
Retailer 10
-
£4,241 GBP
$5,683 USD
View
B+
Retailer 11
-
£4,296 GBP
$5,756 USD
View
B+
Retailer 12
-
£4,296 GBP
$5,756 USD
View
B+
Retailer 13
-
£4,296 GBP
$5,756 USD
View
B+
Retailer 14
-
£4,318 GBP
$5,785 USD
View
B+
Retailer 15
-
£4,468 GBP
View
B+
Retailer 16
-
£4,547 GBP
$6,092 USD
View
B+
Retailer 17
-
£4,549 GBP
View
B+
Retailer 18
-
£4,605 GBP
$6,170 USD
View
B+
Retailer 19
-
£4,605 GBP
$6,170 USD
View
Retailer 20
-
£4,687 GBP
A$9,663 AUD
View
Price last confirmed 22 days ago
B
Retailer 21
-
£4,762 GBP
$6,380 USD
View
B
Retailer 22
-
£4,858 GBP
$6,509 USD
View
B
Retailer 23
-
£4,956 GBP
$6,641 USD
View
B
Retailer 24
-
£5,180 GBP
€6,610 EUR
View
Retailer 25
-
£5,228 GBP
$7,005 USD
View
Price last confirmed 18 days ago
B
Retailer 26
-
£5,826 GBP
ZAR 126,109 ZAR
View
B
Retailer 27
-
£6,986 GBP
View
B
Retailer 28
-
£7,417 GBP
View
Most Expensive
C
NZ Jewellers
1b57a2d5-6c6a-4f5d-85d8-8b2e3e7b0c27 · Oct 30
£7,931 GBP
$10,626 USD
View
28 more retailers have this diamond
Prices start from £3,635 GBPSave up to £4,296 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
£3,635 GBP