Radiant|Natural|GIA

1.50ct G SI1 Radiant Natural Diamond

VG • G/SI1 • GIA 6551223804

Certificate GIA 6551223804

Diamond specifications and retailer prices

From £3,554 GBP
$4,762 USD
As of October 30, 2026
Save £3,664 GBP (51%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: £7,523 GBP at NZ Jewellers · As of September 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 very-good cut grade stated by the retailer rather than the lab and certified by GIA 6551223804. Listed at 23 retailers as of October 28, 2026, with a 103% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
G
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6551223804
Dimensions7.36 × 5.84 × 4.01 mm
L/W Ratio1.26
Top View
7.36 mm5.84 mm1.50 ctG / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6551223804
Side View
Table 69.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 68.8%

Caratlytics Score

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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 30
Current: £4,388 GBP|Low: £3,658 GBP|High: £7,246 GBP|Avg: £4,985 GBP|+2.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 1, 2026
Retailer 8£3,658 GBP
Retailer 9£3,762 GBP
Retailer 2£3,817 GBP
Retailer 7£4,313 GBP
Retailer 1£4,388 GBP
Retailer 10£4,447 GBP
Retailer 4£4,915 GBP
Retailer 3£5,527 GBP
Retailer 5£6,662 GBP
Retailer 6£7,218 GBP

40 data points across 10 retailers

23 retailers£3,554 GBP to £7,218 GBP

A
Cheapest Retailer
-
£3,554 GBP
$4,762 USD
A
Retailer 2
-
£3,658 GBP
$4,901 USD
View
A
Retailer 3
-
£3,762 GBP
$5,040 USD
View
Final sale: no returns
Retailer 4
-
£3,793 GBP
$5,082 USD
View
Price last confirmed 8 days ago
A
Retailer 5
-
£3,817 GBP
$5,115 USD
View
A
Retailer 6
-
£4,028 GBP
$5,397 USD
View
Retailer 7
-
£4,075 GBP
$5,460 USD
View
Price last confirmed 25 days ago
Retailer 8
-
£4,075 GBP
$5,460 USD
View
Price last confirmed 32 days ago
Retailer 9
-
£4,075 GBP
$5,460 USD
View
Price last confirmed 25 days ago
A
Retailer 10
-
£4,313 GBP
$5,779 USD
View
A
Retailer 11
-
£4,381 GBP
$5,870 USD
View
A
Retailer 12
-
£4,381 GBP
$5,870 USD
View
A
Retailer 13
-
£4,388 GBP
View
Retailer 14
-
£4,447 GBP
A$9,167 AUD
View
Price last confirmed 23 days ago
B+
Retailer 15
-
£4,523 GBP
$6,060 USD
View
B+
Retailer 16
-
£4,612 GBP
$6,179 USD
View
Retailer 17
-
£4,702 GBP
$6,300 USD
View
Price last confirmed 23 days ago
B+
Retailer 18
-
£4,915 GBP
€6,272 EUR
View
Retailer 19
-
£4,961 GBP
$6,647 USD
View
Price last confirmed 18 days ago
B+
Retailer 20
-
£5,527 GBP
ZAR 119,630 ZAR
View
B+
Retailer 21
-
£6,662 GBP
View
B
Retailer 22
-
£7,218 GBP
View
Most Expensive
NZ Jewellers
194092b5-fb0a-4757-a02c-093528dfb8cd · Sep 30
£7,523 GBP
$10,080 USD
View
Price last confirmed 32 days ago
22 more retailers have this diamond
Prices start from £3,554 GBPSave up to £3,664 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
£3,554 GBP