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Radiant|Natural|GIA

1.51ct H SI2 Radiant Natural Diamond

GD • H/SI2 • GIA 2356963303

Certificate GIA 2356963303

Diamond specifications and retailer prices

From £5,239 GBP
$7,031 USD
As of November 2, 2026
Save £6,579 GBP (56%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: £11,818 GBP at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 1.51ct natural radiant diamond

This 1.51ct natural radiant sits in the one-and-a-half to two carat band, graded H colour (near-colourless) and SI2 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 2356963303. Listed at 22 retailers as of October 30, 2026, with prices from £5,239 to £11,818, a £6,579 spread on the same certified stone. NZ Jewellers lists it at £11,818. 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

1.51
Carat
H
Colour
SI2
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2356963303
Dimensions7.19 × 5.76 × 3.94 mm
L/W Ratio1.25
Top View
7.19 mm5.76 mm1.51 ctH / SI2
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2356963303
Side View
Table 65.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 68.3%

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 2
Current: £7,330 GBP|Low: £5,172 GBP|High: £9,966 GBP|Avg: £6,700 GBP|+2.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 2, 2026
Retailer 9£5,239 GBP
Retailer 5£5,272 GBP
Retailer 10£5,687 GBP
Retailer 7£5,909 GBP
Retailer 6£6,500 GBP
Retailer 3£6,596 GBP
Retailer 8£6,598 GBP
Retailer 1£7,330 GBP
Retailer 2£7,780 GBP
Retailer 4£9,847 GBP

42 data points across 10 retailers

22 retailers£5,239 GBP to £11,818 GBP

B
Cheapest Retailer
-
£5,239 GBP
$7,031 USD
Retailer 2
-
£5,272 GBP
$7,075 USD
View
Price last confirmed 14 days ago
B
Retailer 3
-
£5,495 GBP
$7,374 USD
View
B
Retailer 4
-
£5,516 GBP
A$11,388 AUD
View
B
Retailer 5
-
£5,533 GBP
$7,425 USD
View
B
Retailer 6
-
£5,687 GBP
$7,632 USD
View
B
Retailer 7
-
£5,803 GBP
CA$10,816 CAD
View
B
Retailer 8
-
£5,909 GBP
$7,930 USD
View
B
Retailer 9
-
£5,959 GBP
$7,996 USD
View
B
Retailer 10
-
£6,401 GBP
$8,590 USD
View
B
Retailer 11
-
£6,500 GBP
$8,723 USD
View
B
Retailer 12
-
£6,596 GBP
View
B
Retailer 13
-
£6,598 GBP
$8,854 USD
View
B
Retailer 14
-
£6,787 GBP
$9,108 USD
View
B
Retailer 15
-
£7,012 GBP
$9,410 USD
View
B
Retailer 16
-
£7,012 GBP
$9,410 USD
View
B
Retailer 17
-
£7,243 GBP
$9,720 USD
View
B
Retailer 18
-
£7,330 GBP
€9,368 EUR
View
B
Retailer 19
-
£7,386 GBP
$9,912 USD
View
Retailer 20
-
£7,780 GBP
$10,440 USD
View
Price last confirmed 10 days ago
B
Retailer 21
-
£9,847 GBP
View
Most Expensive
C
NZ Jewellers
92ea058a-f35e-4974-b1fd-ea52ff4a8fd2 · Oct 30
£11,818 GBP
$15,859 USD
View
21 more retailers have this diamond
Prices start from £5,239 GBPSave up to £6,579 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
1.51ct Radiant
£5,239 GBP