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Radiant|Natural|GIA

1.51ct I VS1 Radiant Natural Diamond

EX • I/VS1 • GIA 1515625085

Certificate GIA 1515625085

Diamond specifications and retailer prices

From £4,884 GBP
As of November 5, 2026
Save £6,364 GBP (57%) vs most expensive(unlock to see where)
26 retailers carry this diamond
Most expensive: £11,248 GBP at NZ Jewellers · As of November 5, 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 I colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1515625085. Listed at 26 retailers as of November 5, 2026, with prices from £4,884 to £11,248, a £6,364 spread on the same certified stone. NZ Jewellers lists it at £11,248. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.51
Carat
I
Colour
VS1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle49.05°
Pavilion angle60.97°
OriginNatural
Grading LabGIA
CertificateGIA 1515625085
Dimensions7.51 × 5.78 × 3.98 mm
L/W Ratio1.30
Key to symbols
Cloud
Top View
7.51 mm5.78 mm1.51 ctI / VS1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1515625085
Side View
Table 66.0%Crown 49.05°Girdle: STK-THKPavilion 60.97°Culet: NoneDepth 68.9%

Caratlytics Score

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

Price History

Last verified: Nov 5
Current: £11,248 GBP|Low: £4,913 GBP|High: £11,248 GBP|Avg: £7,031 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
November 7, 2026
Retailer 3£4,913 GBP
Retailer 10£4,976 GBP
Retailer 5£5,266 GBP
Retailer 11£5,623 GBP
Retailer 4£6,093 GBP
Retailer 12£6,186 GBP
Retailer 2£6,209 GBP
Retailer 9£6,377 GBP
Retailer 6£7,306 GBP
Retailer 7£8,204 GBP
Retailer 8£9,346 GBP
NZ Jewellers£11,248 GBP

46 data points across 12 retailers

26 retailers£4,884 GBP to £11,248 GBP

A
Cheapest Retailer
-
£4,884 GBP
A
Retailer 2
-
£4,913 GBP
View
Retailer 3
-
£4,976 GBP
View
Price last confirmed 20 days ago
A
Retailer 4
-
£5,225 GBP
View
A
Retailer 5
-
£5,243 GBP
View
A
Retailer 6
-
£5,266 GBP
View
A
Retailer 7
-
£5,611 GBP
View
A
Retailer 8
-
£5,623 GBP
View
Final sale: no returns
Retailer 9
-
£5,623 GBP
View
Price last confirmed 9 days ago
B+
Retailer 10
-
£5,991 GBP
View
B+
Retailer 11
-
£6,093 GBP
View
B+
Retailer 12
-
£6,186 GBP
View
B+
Retailer 13
-
£6,209 GBP
View
Retailer 14
-
£6,377 GBP
View
Price last confirmed 15 days ago
B+
Retailer 15
-
£6,448 GBP
View
B+
Retailer 16
-
£6,694 GBP
View
B+
Retailer 17
-
£6,694 GBP
View
B+
Retailer 18
-
£6,732 GBP
View
B+
Retailer 19
-
£6,918 GBP
View
B+
Retailer 20
-
£7,030 GBP
View
B
Retailer 21
-
£7,275 GBP
View
B+
Retailer 22
-
£7,306 GBP
View
Retailer 23
-
£7,406 GBP
View
Price last confirmed 15 days ago
B+
Retailer 24
-
£8,204 GBP
View
B
Retailer 25
-
£9,346 GBP
View
Most Expensive
B
NZ Jewellers
642596b9-837f-4d1b-9bb5-b9920170fdb6 · Nov 5
£11,248 GBP
$15,055 USD
View
25 more retailers have this diamond
Prices start from £4,884 GBPSave up to £6,364 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
1.51ct Radiant
£4,884 GBP