Radiant|Natural|GIA

1.50ct I SI2 Radiant Natural Diamond

VG • I/SI2 • GIA 6551177998

Certificate GIA 6551177998

Diamond specifications and retailer prices

From £2,161 GBP
As of November 6, 2026
Save £2,623 GBP (55%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £5,018 GBP at NZ Jewellers · As of October 17, 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 6551177998. Listed at 18 retailers as of November 2, 2026, with a 121% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6551177998
Dimensions7.39 × 5.67 × 4.02 mm
L/W Ratio1.30
Top View
7.39 mm5.67 mm1.50 ctI / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6551177998
Side View
Table 69.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 71.0%

Caratlytics Score

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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: £5,018 GBP|Low: £2,152 GBP|High: £5,018 GBP|Avg: £3,099 GBP
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 14£2,161 GBP
Retailer 8£2,281 GBP
Retailer 11£2,551 GBP
Retailer 3£2,640 GBP
Retailer 9£2,720 GBP
Retailer 6£2,880 GBP
Retailer 7£2,880 GBP
Retailer 2£2,897 GBP
Retailer 15£2,970 GBP
Retailer 4£2,991 GBP
Retailer 13£2,996 GBP
Retailer 5£3,323 GBP
Retailer 10£3,330 GBP
Retailer 12£4,784 GBP
NZ Jewellers£5,018 GBP

31 data points across 15 retailers

18 retailers£2,161 GBP to £4,784 GBP

A
Cheapest Retailer
-
£2,161 GBP
A
Retailer 2
-
£2,281 GBP
View
A
Retailer 3
-
£2,551 GBP
View
A
Retailer 4
-
£2,640 GBP
View
Final sale: no returns
B+
Retailer 5
-
£2,663 GBP
View
B+
Retailer 6
-
£2,720 GBP
View
B+
Retailer 7
-
£2,820 GBP
View
Retailer 8
-
£2,880 GBP
View
Price last confirmed 20 days ago
Retailer 9
-
£2,880 GBP
View
Price last confirmed 22 days ago
A
Retailer 10
-
£2,897 GBP
View
B+
Retailer 11
-
£2,970 GBP
View
Retailer 12
-
£2,991 GBP
View
Price last confirmed 22 days ago
B+
Retailer 13
-
£2,996 GBP
View
Retailer 14
-
£3,323 GBP
View
Price last confirmed 19 days ago
B+
Retailer 15
-
£3,330 GBP
View
Retailer 16
-
£3,346 GBP
View
Price last confirmed 62 days ago
B+
Retailer 17
-
£4,784 GBP
View
Most Expensive
NZ Jewellers
07bdb9c0-730f-41c8-b1b8-fa274a8128ff · Oct 17
£5,018 GBP
$6,716 USD
View
Price last confirmed 20 days ago
17 more retailers have this diamond
Prices start from £2,161 GBPSave up to £2,623 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
£2,161 GBP