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Radiant|Natural|GIA

1.50ct L SI1 Radiant Natural Diamond

EX • L/SI1 • GIA 2526141392

Certificate GIA 2526141392

Diamond specifications and retailer prices

From £1,771 GBP
As of November 5, 2026
Save £2,202 GBP (55%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: £3,973 GBP at NZ Jewellers · As of November 3, 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 2526141392. Listed at 7 retailers as of November 3, 2026, with prices from £1,771 to £3,973, a £2,202 spread on the same certified stone. NZ Jewellers lists it at £3,973. 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
SymmetryVery Good
FluorescenceNone
Crown angle44.95°
Pavilion angle30.35°
OriginNatural
Grading LabGIA
CertificateGIA 2526141392
Dimensions8.01 × 5.46 × 3.71 mm
L/W Ratio1.47
Top View
8.01 mm5.46 mm1.50 ctL / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2526141392
Side View
Table 64.0%Crown 44.95°GirdlePavilion 30.35°CuletDepth 67.9%

Caratlytics Score

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

Price History

Last verified: Nov 5
Current: £3,973 GBP|Low: £1,767 GBP|High: £4,050 GBP|Avg: £2,198 GBP|-1.9%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 5, 2026
Retailer 2£1,771 GBP
Retailer 4£1,878 GBP
Retailer 5£1,883 GBP
Retailer 7£1,900 GBP
Retailer 6£1,988 GBP
Retailer 3£2,134 GBP
NZ Jewellers£3,973 GBP

42 data points across 7 retailers

7 retailers£1,771 GBP to £3,973 GBP

B+
Cheapest Retailer
-
£1,771 GBP
B+
Retailer 2
-
£1,878 GBP
View
B+
Retailer 3
-
£1,883 GBP
View
B+
Retailer 4
-
£1,900 GBP
View
B+
Retailer 5
-
£1,988 GBP
View
B
Retailer 6
-
£2,134 GBP
View
Most Expensive
C
NZ Jewellers
43d6fa45-7067-4ceb-b39a-d5fa0019c924 · Nov 3
£3,973 GBP
$5,318 USD
View
6 more retailers have this diamond
Prices start from £1,771 GBPSave up to £2,202 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
£1,771 GBP