Radiant|Natural|GIA

1.50ct H SI1 Radiant Natural Diamond

VG • H/SI1 • GIA 6365450324

Certificate GIA 6365450324

Diamond specifications and retailer prices

From £6,295 GBP
$8,435 USD
As of November 1, 2026
Save £5,488 GBP (47%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: £11,783 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 very-good cut grade stated by the retailer rather than the lab and certified by GIA 6365450324. Listed at 23 retailers as of October 30, 2026, with prices from £6,295 to £11,783, a £5,488 spread on the same certified stone. NZ Jewellers lists it at £11,783. 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
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishVery Good
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6365450324
Dimensions7.58 × 5.88 × 4.09 mm
L/W Ratio1.29
Top View
7.58 mm5.88 mm1.50 ctH / SI1
OriginNatural
CutVery Good
PolishVery Good
SymmetryGood
FluorescenceNone
CertificateGIA 6365450324
Side View
Table 68.0%CrownGirdle: THN-STKPavilionCulet: NoneDepth 69.6%

Caratlytics Score

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B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: £11,783 GBP|Low: £5,892 GBP|High: £11,783 GBP|Avg: £8,464 GBP
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 2, 2026
Retailer 8£6,295 GBP
Retailer 3£7,070 GBP
Retailer 9£7,070 GBP
Retailer 11£7,659 GBP
Retailer 4£7,739 GBP
Retailer 10£7,777 GBP
Retailer 7£7,778 GBP
Retailer 2£8,490 GBP
Retailer 6£10,386 GBP
Retailer 5£11,041 GBP
NZ Jewellers£11,783 GBP

45 data points across 11 retailers

23 retailers£6,295 GBP to £11,783 GBP

B
Cheapest Retailer
-
£6,295 GBP
$8,435 USD
B
Retailer 2
-
£6,540 GBP
$8,763 USD
View
B
Retailer 3
-
£6,619 GBP
$8,869 USD
View
B
Retailer 4
-
£6,625 GBP
A$13,657 AUD
View
B
Retailer 5
-
£6,801 GBP
CA$12,656 CAD
View
B
Retailer 6
-
£7,004 GBP
$9,385 USD
View
B
Retailer 7
-
£7,070 GBP
$9,473 USD
View
B
Retailer 8
-
£7,070 GBP
$9,473 USD
View
Final sale: no returns
B
Retailer 9
-
£7,194 GBP
$9,639 USD
View
B
Retailer 10
-
£7,659 GBP
$10,262 USD
View
B
Retailer 11
-
£7,739 GBP
View
B
Retailer 12
-
£7,777 GBP
$10,420 USD
View
Retailer 13
-
£7,778 GBP
A$16,033 AUD
View
Price last confirmed 9 days ago
B
Retailer 14
-
£8,152 GBP
$10,923 USD
View
B
Retailer 15
-
£8,307 GBP
$11,130 USD
View
B
Retailer 16
-
£8,307 GBP
$11,130 USD
View
B
Retailer 17
-
£8,372 GBP
$11,218 USD
View
B
Retailer 18
-
£8,490 GBP
€10,834 EUR
View
B
Retailer 19
-
£8,590 GBP
$11,510 USD
View
C
Retailer 20
-
£8,837 GBP
$11,841 USD
View
B
Retailer 21
-
£10,386 GBP
ZAR 224,825 ZAR
View
B
Retailer 22
-
£11,041 GBP
View
Most Expensive
C
NZ Jewellers
8f48c987-7063-49bf-b6de-9dd9d0cbdb77 · Oct 30
£11,783 GBP
$15,788 USD
View
22 more retailers have this diamond
Prices start from £6,295 GBPSave up to £5,488 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
£6,295 GBP