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Radiant|Natural|GIA

1.50ct L SI1 Radiant Natural Diamond

EX • L/SI1 • GIA 6531975175

Certificate GIA 6531975175

Diamond specifications and retailer prices

From £2,086 GBP
As of November 4, 2026
Save £2,170 GBP (51%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £4,256 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 L colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6531975175. Listed at 14 retailers as of November 4, 2026, with prices from £2,086 to £4,256, a £2,170 spread on the same certified stone. NZ Jewellers lists it at £4,256. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.50
Carat
L
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6531975175
Dimensions8.08 × 5.43 × 3.84 mm
L/W Ratio1.49
Top View
8.08 mm5.43 mm1.50 ctL / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6531975175
Side View
Table 63.0%CrownGirdlePavilionCulet: NoneDepth 70.8%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: £4,256 GBP|Low: £2,003 GBP|High: £4,256 GBP|Avg: £2,583 GBP|+2.4%
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
November 7, 2026
Retailer 4£2,086 GBP
Retailer 3£2,168 GBP
Retailer 14£2,239 GBP
Retailer 5£2,365 GBP
Retailer 7£2,402 GBP
Retailer 11£2,442 GBP
Retailer 13£2,442 GBP
Retailer 2£2,527 GBP
Retailer 12£2,536 GBP
Retailer 6£2,550 GBP
Retailer 10£2,818 GBP
Retailer 8£2,844 GBP
Retailer 9£2,981 GBP
NZ Jewellers£4,256 GBP

25 data points across 14 retailers

14 retailers£2,086 GBP to £4,256 GBP

B+
Cheapest Retailer
-
£2,086 GBP
B+
Retailer 2
-
£2,168 GBP
View
B+
Retailer 3
-
£2,239 GBP
View
B+
Retailer 4
-
£2,365 GBP
View
B+
Retailer 5
-
£2,402 GBP
View
B
Retailer 6
-
£2,442 GBP
View
Retailer 7
-
£2,442 GBP
View
Price last confirmed 9 days ago
B
Retailer 8
-
£2,527 GBP
View
B
Retailer 9
-
£2,536 GBP
View
B
Retailer 10
-
£2,550 GBP
View
B
Retailer 11
-
£2,818 GBP
View
B
Retailer 12
-
£2,844 GBP
View
B
Retailer 13
-
£2,981 GBP
View
Most Expensive
B
NZ Jewellers
31d9b2a6-61a1-4c63-9edb-e90d664cb76a · Nov 5
£4,256 GBP
$5,696 USD
View
13 more retailers have this diamond
Prices start from £2,086 GBPSave up to £2,170 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.

B+
1.50ct Radiant
£2,086 GBP