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Radiant|Natural|GIA

1.51ct J SI1 Radiant Natural Diamond

EX • J/SI1 • GIA 6472510095

Certificate GIA 6472510095

Diamond specifications and retailer prices

From £1,910 GBP
As of November 5, 2026
Save £2,017 GBP (51%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £3,926 GBP at MOH London · As of November 4, 2026
View at MOH London

About this 1.51ct natural radiant diamond

This 1.51ct natural radiant sits in the one-and-a-half to two carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6472510095. Listed at 12 retailers as of November 4, 2026, with prices from £1,910 to £3,926, a £2,017 spread on the same certified stone. MOH London lists it at £3,926. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.51
Carat
J
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle48.6°
Pavilion angle60.4°
OriginNatural
Grading LabGIA
CertificateGIA 6472510095
Dimensions6.24 × 6.20 × 4.17 mm
L/W Ratio1.01
Top View
6.24 mm6.20 mm1.51 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6472510095
Side View
Table 65.0%Crown 48.6°Girdle: ThickPavilion 60.4°Culet: NoneDepth 67.3%

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: £3,926 GBP|Low: £1,892 GBP|High: £4,192 GBP|Avg: £2,603 GBP|-5.2%
MOH London
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 8£1,910 GBP
Retailer 9£1,968 GBP
Retailer 7£2,088 GBP
Retailer 5£2,155 GBP
Retailer 3£2,207 GBP
Retailer 10£2,413 GBP
Retailer 12£2,413 GBP
Retailer 2£2,436 GBP
Retailer 11£2,495 GBP
Retailer 4£2,637 GBP
Retailer 6£2,873 GBP
MOH London£3,926 GBP

46 data points across 12 retailers

12 retailers£1,910 GBP to £3,926 GBP

A
Cheapest Retailer
-
£1,910 GBP
A
Retailer 2
-
£1,968 GBP
View
Final sale: no returns
A
Retailer 3
-
£2,088 GBP
View
A
Retailer 4
-
£2,155 GBP
View
Retailer 5
-
£2,207 GBP
View
Price last confirmed 13 days ago
A
Retailer 6
-
£2,413 GBP
View
A
Retailer 7
-
£2,413 GBP
View
A
Retailer 8
-
£2,436 GBP
View
A
Retailer 9
-
£2,495 GBP
View
Retailer 10
-
£2,637 GBP
View
Price last confirmed 31 days ago
B+
Retailer 11
-
£2,873 GBP
View
Most Expensive
B
MOH London
E61DA6E62 · Nov 4
£3,926 GBP
View
11 more retailers have this diamond
Prices start from £1,910 GBPSave up to £2,017 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
£1,910 GBP