Radiant|Natural|GIA

1.50ct G SI1 Radiant Natural Diamond

ID • G/SI1 • GIA 2546064937

Certificate GIA 2546064937

Diamond specifications and retailer prices

From £4,561 GBP
$6,111 USD
As of October 31, 2026
Save £5,518 GBP (55%) vs most expensive(unlock to see where)
28 retailers carry this diamond
Most expensive: £10,078 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 G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2546064937. Listed at 28 retailers as of October 30, 2026, with prices from £4,561 to £10,078, a £5,518 spread on the same certified stone. NZ Jewellers lists it at £10,078. 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
G
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle47.23°
Pavilion angle30.37°
OriginNatural
Grading LabGIA
CertificateGIA 2546064937
Dimensions7.18 × 5.66 × 3.95 mm
L/W Ratio1.27
Top View
7.18 mm5.66 mm1.50 ctG / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2546064937
Side View
Table 65.0%Crown 47.23°Girdle: THK-VTKPavilion 30.37°Culet: NoneDepth 69.9%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: £10,078 GBP|Low: £3,975 GBP|High: £10,078 GBP|Avg: £6,018 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
November 1, 2026
Retailer 4£4,561 GBP
Retailer 13£4,771 GBP
Retailer 15£5,038 GBP
Retailer 3£5,039 GBP
Retailer 5£5,459 GBP
Retailer 8£5,529 GBP
Retailer 9£5,532 GBP
Retailer 16£5,543 GBP
Retailer 17£5,565 GBP
Retailer 2£5,637 GBP
Retailer 14£5,774 GBP
Retailer 7£6,078 GBP
Retailer 11£6,206 GBP
Retailer 6£6,299 GBP
Retailer 10£7,403 GBP
Retailer 12£8,442 GBP
NZ Jewellers£10,078 GBP

44 data points across 17 retailers

28 retailers£4,561 GBP to £10,078 GBP

A
Cheapest Retailer
-
£4,561 GBP
$6,111 USD
A
Retailer 2
-
£4,670 GBP
$6,257 USD
View
A
Retailer 3
-
£4,683 GBP
A$9,654 AUD
View
A
Retailer 4
-
£4,762 GBP
$6,380 USD
View
A
Retailer 5
-
£4,771 GBP
$6,392 USD
View
A
Retailer 6
-
£4,830 GBP
$6,472 USD
View
B+
Retailer 7
-
£5,038 GBP
$6,751 USD
View
Final sale: no returns
B+
Retailer 8
-
£5,039 GBP
$6,752 USD
View
B+
Retailer 9
-
£5,045 GBP
$6,760 USD
View
B+
Retailer 10
-
£5,366 GBP
$7,189 USD
View
B+
Retailer 11
-
£5,459 GBP
$7,315 USD
View
B+
Retailer 12
-
£5,529 GBP
A$11,398 AUD
View
Retailer 13
-
£5,532 GBP
$7,412 USD
View
Price last confirmed 10 days ago
B+
Retailer 14
-
£5,543 GBP
$7,427 USD
View
B+
Retailer 15
-
£5,565 GBP
$7,457 USD
View
B+
Retailer 16
-
£5,637 GBP
View
B+
Retailer 17
-
£5,650 GBP
$7,570 USD
View
Retailer 18
-
£5,774 GBP
A$11,902 AUD
View
Price last confirmed 11 days ago
B+
Retailer 19
-
£6,030 GBP
$8,080 USD
View
B+
Retailer 20
-
£6,030 GBP
$8,080 USD
View
B+
Retailer 21
-
£6,078 GBP
$8,144 USD
View
B+
Retailer 22
-
£6,095 GBP
$8,167 USD
View
B+
Retailer 23
-
£6,206 GBP
€7,919 EUR
View
B+
Retailer 24
-
£6,232 GBP
$8,350 USD
View
B
Retailer 25
-
£6,299 GBP
$8,440 USD
View
B
Retailer 26
-
£7,403 GBP
ZAR 160,239 ZAR
View
B
Retailer 27
-
£8,442 GBP
View
Most Expensive
B
NZ Jewellers
90e3d10c-8dc7-49b4-9cc6-aea678289981 · Oct 30
£10,078 GBP
$13,504 USD
View
27 more retailers have this diamond
Prices start from £4,561 GBPSave up to £5,518 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
£4,561 GBP