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Radiant|Natural|GIA

1.50ct D SI2 Radiant Natural Diamond

VG • D/SI2 • GIA 6551540443

Certificate GIA 6551540443

Diamond specifications and retailer prices

From £3,055 GBP
As of November 6, 2026
Save £3,813 GBP (56%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £6,868 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 SI2 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 6551540443. Listed at 16 retailers as of November 5, 2026, with prices from £3,055 to £6,868, a £3,813 spread on the same certified stone. NZ Jewellers lists it at £6,868. 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
SI2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6551540443
Dimensions7.80 × 5.57 × 3.70 mm
L/W Ratio1.40
Girdle conditionPolished
Culet sizeNone
Key to symbols
Cloud, Crystal, Feather, Needle, Indented Natural
Top View
7.80 mm5.57 mm1.50 ctD / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6551540443
Side View
Table 69.0%CrownGirdle: ThickPavilionCulet: NoneDepth 66.5%

Caratlytics Score

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

Price History

Last verified: Nov 6
Current: £6,868 GBP|Low: £3,044 GBP|High: £6,868 GBP|Avg: £4,302 GBP|+0.7%
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
November 7, 2026
Retailer 12£3,055 GBP
Retailer 9£3,239 GBP
Retailer 4£3,582 GBP
Retailer 6£3,679 GBP
Retailer 10£3,826 GBP
Retailer 8£3,931 GBP
Retailer 7£4,050 GBP
Retailer 2£4,069 GBP
Retailer 3£4,107 GBP
Retailer 13£4,221 GBP
Retailer 11£4,266 GBP
Retailer 14£4,333 GBP
Retailer 15£4,695 GBP
Retailer 5£6,523 GBP
NZ Jewellers£6,868 GBP

22 data points across 15 retailers

16 retailers£3,055 GBP to £6,868 GBP

A
Cheapest Retailer
-
£3,055 GBP
A
Retailer 2
-
£3,239 GBP
View
Final sale: no returns
A
Retailer 3
-
£3,582 GBP
View
A
Retailer 4
-
£3,679 GBP
View
A
Retailer 5
-
£3,826 GBP
View
A
Retailer 6
-
£3,931 GBP
View
Retailer 7
-
£4,050 GBP
View
Price last confirmed 9 days ago
A
Retailer 8
-
£4,069 GBP
View
A
Retailer 9
-
£4,107 GBP
View
A
Retailer 10
-
£4,221 GBP
View
A
Retailer 11
-
£4,266 GBP
View
A
Retailer 12
-
£4,333 GBP
View
A
Retailer 13
-
£4,695 GBP
View
Retailer 14
-
£4,804 GBP
View
Price last confirmed 62 days ago
B+
Retailer 15
-
£6,523 GBP
View
Most Expensive
B
NZ Jewellers
7b5098ec-7ca7-4c7e-a813-2c4bcf349377 · Nov 5
£6,868 GBP
$9,193 USD
View
15 more retailers have this diamond
Prices start from £3,055 GBPSave up to £3,813 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
£3,055 GBP