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Radiant|Natural|GIA

1.50ct I SI1 Radiant Natural Diamond

VG • I/SI1 • GIA 1453276340

Certificate GIA 1453276340

Diamond specifications and retailer prices

From £2,104 GBP
As of November 2, 2026
Save £2,578 GBP (55%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £4,682 GBP at MOH London · As of November 2, 2026
View at MOH London

About this 1.5ct natural radiant diamond

This 1.5ct natural radiant sits in the one-and-a-half to two carat band, graded I 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 1453276340. Listed at 17 retailers as of November 2, 2026, with prices from £2,104 to £4,682, a £2,578 spread on the same certified stone. MOH London lists it at £4,682. 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
I
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Pavilion angle57.29°
OriginNatural
Grading LabGIA
CertificateGIA 1453276340
Dimensions6.31 × 6.28 × 4.25 mm
L/W Ratio1.00
Girdle conditionPolished
Top View
6.31 mm6.28 mm1.50 ctI / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1453276340
Side View
Table 64.0%CrownGirdle: Slightly ThickPavilion 57.29°Culet: NoneDepth 67.7%

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 2
Current: £4,682 GBP|Low: £2,065 GBP|High: £5,009 GBP|Avg: £2,949 GBP|-6.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
November 7, 2026
Retailer 11£2,104 GBP
Retailer 15£2,259 GBP
Retailer 6£2,276 GBP
Retailer 7£2,292 GBP
Retailer 14£2,341 GBP
Retailer 16£2,400 GBP
Retailer 4£2,447 GBP
Retailer 10£2,544 GBP
Retailer 2£2,672 GBP
Retailer 5£2,876 GBP
Retailer 8£3,178 GBP
Retailer 13£3,276 GBP
Retailer 3£3,441 GBP
Retailer 12£3,758 GBP
Retailer 9£4,418 GBP
MOH London£4,682 GBP

26 data points across 16 retailers

17 retailers£2,104 GBP to £4,682 GBP

A
Cheapest Retailer
-
£2,104 GBP
A
Retailer 2
-
£2,259 GBP
View
A
Retailer 3
-
£2,276 GBP
View
A
Retailer 4
-
£2,292 GBP
View
A
Retailer 5
-
£2,341 GBP
View
Final sale: no returns
Retailer 6
-
£2,400 GBP
View
Price last confirmed 6 days ago
Retailer 7
-
£2,447 GBP
View
Price last confirmed 5 days ago
A
Retailer 8
-
£2,544 GBP
View
A
Retailer 9
-
£2,672 GBP
View
Retailer 10
-
£2,876 GBP
View
Price last confirmed 8 days ago
Retailer 11
-
£3,178 GBP
View
Price last confirmed 30 days ago
B+
Retailer 12
-
£3,180 GBP
View
A
Retailer 13
-
£3,276 GBP
View
A
Retailer 14
-
£3,441 GBP
View
A
Retailer 15
-
£3,758 GBP
View
B+
Retailer 16
-
£4,418 GBP
View
Most Expensive
B+
MOH London
5A30393B5 · Nov 2
£4,682 GBP
View
16 more retailers have this diamond
Prices start from £2,104 GBPSave up to £2,578 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
1.50ct Radiant
£2,104 GBP