Radiant|Natural|GIA

1.50ct I SI1 Radiant Natural Diamond

GD • I/SI1 • GIA 2534920160

Certificate GIA 2534920160

Diamond specifications and retailer prices

From £4,152 GBP
A$8,558 AUD
As of November 2, 2026
20 retailers carry this diamond
Most expensive: £7,483 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 I 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 2534920160. Listed at 20 retailers as of November 2, 2026. 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
I
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle50.1°
Pavilion angle59.9°
OriginNatural
Grading LabGIA
CertificateGIA 2534920160
Dimensions7.49 × 5.59 × 3.97 mm
L/W Ratio1.34
Top View
7.49 mm5.59 mm1.50 ctI / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2534920160
Side View
Table 68.0%Crown 50.1°Girdle: STK-THKPavilion 59.9°Culet: NoneDepth 71.0%

Caratlytics Score

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B+
Very Good
Strong quality and value balance
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Price History

Last verified: Nov 2
Current: £7,483 GBP|Low: £3,241 GBP|High: £7,483 GBP|Avg: £4,823 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
October 23, 2026
Retailer 11£3,742 GBP
Retailer 9£3,773 GBP
Retailer 13£3,799 GBP
Retailer 12£4,053 GBP
Retailer 3£4,152 GBP
Retailer 6£4,313 GBP
Retailer 8£4,440 GBP
Retailer 4£4,677 GBP
Retailer 2£4,855 GBP
Retailer 5£4,935 GBP
Retailer 7£5,400 GBP
Retailer 10£6,627 GBP
NZ Jewellers£7,483 GBP

35 data points across 13 retailers

20 retailers

Retailer 1
-
£3,496 GBP
$4,684 USD
Price last confirmed 9 days ago
Retailer 2
-
£3,535 GBP
$4,736 USD
View
Price last confirmed 9 days ago
Retailer 3
-
£3,773 GBP
$5,055 USD
View
Price last confirmed 11 days ago
Retailer 4
-
£3,799 GBP
$5,090 USD
View
Price last confirmed 10 days ago
Retailer 5
-
£4,008 GBP
$5,370 USD
View
Price last confirmed 15 days ago
Retailer 6
-
£4,053 GBP
$5,431 USD
View
Price last confirmed 16 days ago
Retailer 7
-
£4,053 GBP
$5,431 USD
View
Price last confirmed 10 days ago
Retailer 8
-
£4,053 GBP
$5,431 USD
View
Price last confirmed 17 days ago
B+
Retailer 9
-
£4,152 GBP
A$8,558 AUD
View
Retailer 10
-
£4,313 GBP
View
Price last confirmed 10 days ago
Retailer 11
-
£4,440 GBP
A$9,153 AUD
View
Price last confirmed 14 days ago
Retailer 12
-
£4,441 GBP
$5,950 USD
View
Price last confirmed 11 days ago
Retailer 13
-
£4,441 GBP
$5,950 USD
View
Price last confirmed 11 days ago
Retailer 14
-
£4,582 GBP
$6,140 USD
View
Price last confirmed 14 days ago
Retailer 15
-
£4,677 GBP
$6,267 USD
View
Price last confirmed 12 days ago
Retailer 16
-
£4,855 GBP
€6,195 EUR
View
Price last confirmed 10 days ago
Retailer 17
-
£4,935 GBP
$6,613 USD
View
Price last confirmed 10 days ago
Retailer 18
-
£5,400 GBP
ZAR 116,896 ZAR
View
Price last confirmed 10 days ago
Retailer 19
-
£6,627 GBP
View
Price last confirmed 12 days ago
Most Expensive
NZ Jewellers
a81da476-d318-4f22-b81d-a1e49bd12686 · Oct 21
£7,483 GBP
$10,027 USD
View
Price last confirmed 12 days ago
19 more retailers have this diamond
Prices start from £4,152 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.

B+
1.50ct Radiant
£4,152 GBP