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Radiant|Natural|GIA

1.50ct I SI1 Radiant Natural Diamond

GD • I/SI1 • GIA 2566543875

Certificate GIA 2566543875

Diamond specifications and retailer prices

From £3,031 GBP
₹386,778 INR
As of November 1, 2026
Save £3,661 GBP (55%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: £6,692 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 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 2566543875. Listed at 20 retailers as of October 30, 2026, with prices from £3,031 to £6,692, a £3,661 spread on the same certified stone. NZ Jewellers lists it at £6,692. 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
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 2566543875
Dimensions7.55 × 5.48 × 3.87 mm
L/W Ratio1.38
Girdle conditionPolished
Culet sizeNone
Key to symbols
Crystal, Indented Natural, Natural
Top View
7.55 mm5.48 mm1.50 ctI / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2566543875
Side View
Table 65.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 70.6%

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 1
Current: £6,692 GBP|Low: £3,031 GBP|High: £7,008 GBP|Avg: £4,266 GBP|-4.5%
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
Retailer 19
Retailer 20
November 2, 2026
Retailer 15£3,031 GBP
Retailer 7£3,300 GBP
Retailer 9£3,385 GBP
Retailer 6£3,489 GBP
Retailer 10£3,638 GBP
Retailer 4£3,750 GBP
Retailer 2£3,796 GBP
Retailer 14£3,904 GBP
Retailer 11£4,001 GBP
Retailer 19£4,001 GBP
Retailer 20£4,001 GBP
Retailer 3£4,041 GBP
Retailer 18£4,115 GBP
Retailer 8£4,172 GBP
Retailer 12£4,308 GBP
Retailer 13£4,526 GBP
Retailer 5£4,616 GBP
Retailer 17£4,918 GBP
Retailer 16£6,372 GBP
NZ Jewellers£6,692 GBP

16 data points across 20 retailers

20 retailers£3,031 GBP to £6,692 GBP

A
Cheapest Retailer
-
£3,031 GBP
₹386,778 INR
B+
Retailer 2
-
£3,300 GBP
A$6,803 AUD
View
A
Retailer 3
-
£3,385 GBP
$4,536 USD
View
A
Retailer 4
-
£3,489 GBP
$4,675 USD
View
B+
Retailer 5
-
£3,638 GBP
$4,874 USD
View
B+
Retailer 6
-
£3,750 GBP
$5,025 USD
View
B+
Retailer 7
-
£3,796 GBP
View
B+
Retailer 8
-
£3,904 GBP
View
B+
Retailer 9
-
£4,001 GBP
$5,361 USD
View
B+
Retailer 10
-
£4,001 GBP
$5,361 USD
View
B+
Retailer 11
-
£4,001 GBP
$5,361 USD
View
B+
Retailer 12
-
£4,041 GBP
$5,415 USD
View
B+
Retailer 13
-
£4,115 GBP
$5,514 USD
View
B+
Retailer 14
-
£4,172 GBP
$5,590 USD
View
Retailer 15
-
£4,308 GBP
A$8,881 AUD
View
Price last confirmed 15 days ago
B+
Retailer 16
-
£4,526 GBP
€5,776 EUR
View
B+
Retailer 17
-
£4,616 GBP
$6,185 USD
View
B
Retailer 18
-
£4,918 GBP
ZAR 106,451 ZAR
View
B
Retailer 19
-
£6,372 GBP
View
Most Expensive
B
NZ Jewellers
f4309533-d2d6-4892-8a7a-c4b35b1cd322 · Oct 30
£6,692 GBP
$8,966 USD
View
19 more retailers have this diamond
Prices start from £3,031 GBPSave up to £3,661 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
£3,031 GBP