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Radiant|Natural|GIA

1.50ct I SI2 Radiant Natural Diamond

VG • I/SI2 • GIA 2557877387

Certificate GIA 2557877387

Diamond specifications and retailer prices

From £2,159 GBP
As of November 6, 2026
Save £2,835 GBP (57%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £4,994 GBP at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

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 SI2 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 2557877387. Listed at 18 retailers as of November 5, 2026, with prices from £2,159 to £4,994, a £2,835 spread on the same certified stone. NZ Jewellers lists it at £4,994. 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
SI2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2557877387
Dimensions7.69 × 5.63 × 3.82 mm
L/W Ratio1.37
Girdle conditionPolished
Culet sizeNone
Key to symbols
Feather, Crystal, Cloud, Needle, Indented Natural, Natural
Top View
7.69 mm5.63 mm1.50 ctI / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryGood
FluorescenceNone
CertificateGIA 2557877387
Side View
Table 62.0%CrownGirdle: VTK-ETKPavilionCulet: NoneDepth 67.8%

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 6
Current: £4,994 GBP|Low: £2,159 GBP|High: £5,207 GBP|Avg: £3,131 GBP|-4.1%
NZ Jewellers
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
Retailer 17
Retailer 18
November 7, 2026
Retailer 12£2,159 GBP
Retailer 3£2,277 GBP
Retailer 18£2,545 GBP
Retailer 9£2,757 GBP
Retailer 13£2,781 GBP
Retailer 16£2,867 GBP
Retailer 2£2,903 GBP
Retailer 6£2,940 GBP
Retailer 10£2,948 GBP
Retailer 14£2,976 GBP
Retailer 4£2,977 GBP
Retailer 11£3,026 GBP
Retailer 17£3,048 GBP
Retailer 15£3,150 GBP
Retailer 5£3,153 GBP
Retailer 7£3,308 GBP
Retailer 8£4,862 GBP
NZ Jewellers£4,994 GBP

15 data points across 18 retailers

18 retailers£2,159 GBP to £4,994 GBP

A
Cheapest Retailer
-
£2,159 GBP
A
Retailer 2
-
£2,277 GBP
View
Final sale: no returns
A
Retailer 3
-
£2,545 GBP
View
A
Retailer 4
-
£2,757 GBP
View
A
Retailer 5
-
£2,781 GBP
View
A
Retailer 6
-
£2,867 GBP
View
A
Retailer 7
-
£2,903 GBP
View
A
Retailer 8
-
£2,940 GBP
View
Retailer 9
-
£2,948 GBP
View
Price last confirmed 9 days ago
A
Retailer 10
-
£2,976 GBP
View
B+
Retailer 11
-
£2,977 GBP
View
A
Retailer 12
-
£3,026 GBP
View
A
Retailer 13
-
£3,048 GBP
View
A
Retailer 14
-
£3,150 GBP
View
A
Retailer 15
-
£3,153 GBP
View
B+
Retailer 16
-
£3,308 GBP
View
B
Retailer 17
-
£4,862 GBP
View
Most Expensive
B
NZ Jewellers
5e60bdd7-0f2a-4964-b8e6-500e298e64c6 · Nov 5
£4,994 GBP
$6,685 USD
View
17 more retailers have this diamond
Prices start from £2,159 GBPSave up to £2,835 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
£2,159 GBP