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Radiant|Natural|GIA

1.51ct G SI1 Radiant Natural Diamond

GD • G/SI1 • GIA 1435576385

Certificate GIA 1435576385

Diamond specifications and retailer prices

From £7,859 GBP
$10,530 USD
As of October 28, 2026
Save £6,957 GBP (47%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: £14,816 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 G 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 1435576385. Listed at 22 retailers as of October 28, 2026, with prices from £7,859 to £14,816, a £6,957 spread on the same certified stone. NZ Jewellers lists it at £14,816. 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
G
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1435576385
Dimensions8.06 × 5.60 × 3.86 mm
L/W Ratio1.44
Culet sizeNone
Top View
8.06 mm5.60 mm1.51 ctG / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1435576385
Side View
Table 67.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 68.9%

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: Oct 28
Current: £14,816 GBP|Low: £7,408 GBP|High: £14,816 GBP|Avg: £10,662 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£7,859 GBP
Retailer 9£8,890 GBP
Retailer 11£8,890 GBP
Retailer 4£9,619 GBP
Retailer 3£9,631 GBP
Retailer 7£9,674 GBP
Retailer 10£9,778 GBP
Retailer 2£11,198 GBP
Retailer 6£13,060 GBP
Retailer 5£13,883 GBP
NZ Jewellers£14,816 GBP

44 data points across 11 retailers

22 retailers£7,859 GBP to £14,816 GBP

B
Cheapest Retailer
-
£7,859 GBP
$10,530 USD
B
Retailer 2
-
£8,248 GBP
$11,051 USD
View
B
Retailer 3
-
£8,252 GBP
$11,057 USD
View
B
Retailer 4
-
£8,364 GBP
A$17,241 AUD
View
B
Retailer 5
-
£8,371 GBP
CA$15,578 CAD
View
B
Retailer 6
-
£8,758 GBP
$11,735 USD
View
B
Retailer 7
-
£8,890 GBP
$11,911 USD
View
B
Retailer 8
-
£8,890 GBP
$11,911 USD
View
Final sale: no returns
B
Retailer 9
-
£8,963 GBP
$12,010 USD
View
B
Retailer 10
-
£9,619 GBP
View
B
Retailer 11
-
£9,631 GBP
$12,904 USD
View
Retailer 12
-
£9,674 GBP
A$19,942 AUD
View
Price last confirmed 9 days ago
B
Retailer 13
-
£9,778 GBP
$13,102 USD
View
B
Retailer 14
-
£10,284 GBP
$13,780 USD
View
B
Retailer 15
-
£10,284 GBP
$13,780 USD
View
B
Retailer 16
-
£10,291 GBP
$13,789 USD
View
B
Retailer 17
-
£10,628 GBP
$14,240 USD
View
C
Retailer 18
-
£11,112 GBP
$14,889 USD
View
B
Retailer 19
-
£11,198 GBP
€14,290 EUR
View
B
Retailer 20
-
£13,060 GBP
ZAR 282,694 ZAR
View
B
Retailer 21
-
£13,883 GBP
View
Most Expensive
C
NZ Jewellers
9f4347c2-9e93-4dd6-bdc7-aa3dc2a5b770 · Oct 30
£14,816 GBP
$19,852 USD
View
21 more retailers have this diamond
Prices start from £7,859 GBPSave up to £6,957 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
£7,859 GBP