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Radiant|Natural|GIA

1.50ct D SI1 Radiant Natural Diamond

GD • D/SI1 • GIA 7551699481

Certificate GIA 7551699481

Diamond specifications and retailer prices

From £3,481 GBP
As of November 6, 2026
Save £4,356 GBP (56%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: £7,837 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 D colour (colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 7551699481. Listed at 20 retailers as of November 5, 2026, with prices from £3,481 to £7,837, a £4,356 spread on the same certified stone. NZ Jewellers lists it at £7,837. 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
D
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 7551699481
Dimensions7.50 × 5.76 × 3.94 mm
L/W Ratio1.30
Girdle conditionPolished
Culet sizeNone
Key to symbols
Crystal, Needle, Indented Natural, Natural
Top View
7.50 mm5.76 mm1.50 ctD / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 7551699481
Side View
Table 69.0%CrownGirdle: VTK-ETKPavilionCulet: NoneDepth 68.4%

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: £7,837 GBP|Low: £3,481 GBP|High: £8,009 GBP|Avg: £4,796 GBP|-2.1%
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 17£3,481 GBP
Retailer 13£3,697 GBP
Retailer 6£3,702 GBP
Retailer 14£3,815 GBP
Retailer 7£4,087 GBP
Retailer 11£4,117 GBP
Retailer 9£4,280 GBP
Retailer 12£4,408 GBP
Retailer 15£4,478 GBP
Retailer 2£4,640 GBP
Retailer 5£4,686 GBP
Retailer 10£4,755 GBP
Retailer 18£4,774 GBP
Retailer 16£4,826 GBP
Retailer 3£5,355 GBP
Retailer 4£5,717 GBP
Retailer 8£6,885 GBP
NZ Jewellers£7,837 GBP

15 data points across 18 retailers

20 retailers£3,481 GBP to £7,837 GBP

A
Cheapest Retailer
-
£3,481 GBP
A
Retailer 2
-
£3,697 GBP
View
Final sale: no returns
A
Retailer 3
-
£3,702 GBP
View
A
Retailer 4
-
£3,815 GBP
View
A
Retailer 5
-
£4,087 GBP
View
A
Retailer 6
-
£4,117 GBP
View
A
Retailer 7
-
£4,280 GBP
View
A
Retailer 8
-
£4,408 GBP
View
B+
Retailer 9
-
£4,478 GBP
View
Retailer 10
-
£4,631 GBP
View
Price last confirmed 28 days ago
A
Retailer 11
-
£4,640 GBP
View
A
Retailer 12
-
£4,686 GBP
View
Retailer 13
-
£4,755 GBP
View
Price last confirmed 9 days ago
A
Retailer 14
-
£4,774 GBP
View
A
Retailer 15
-
£4,826 GBP
View
Retailer 16
-
£4,940 GBP
View
Price last confirmed 15 days ago
B+
Retailer 17
-
£5,355 GBP
View
B+
Retailer 18
-
£5,717 GBP
View
B
Retailer 19
-
£6,885 GBP
View
Most Expensive
B
NZ Jewellers
14fe732a-88a0-4827-abc5-ade167974442 · Nov 5
£7,837 GBP
$10,490 USD
View
19 more retailers have this diamond
Prices start from £3,481 GBPSave up to £4,356 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
£3,481 GBP