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Radiant|Natural|GIA

1.55ct J SI2 Radiant Natural Diamond

EX • J/SI2 • GIA 1549934703

Certificate GIA 1549934703

Diamond specifications and retailer prices

From £1,960 GBP
As of November 6, 2026
Save £2,454 GBP (56%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £4,815 GBP at NZ Jewellers · As of September 25, 2026
View at NZ Jewellers

About this 1.55ct natural radiant diamond

This 1.55ct natural radiant sits in the one-and-a-half to two carat band, graded J colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1549934703. Listed at 13 retailers as of November 4, 2026, with a 125% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

1.55
Carat
J
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 1549934703
Dimensions7.46 × 5.72 × 3.98 mm
L/W Ratio1.30
Girdle conditionPolished
Top View
7.46 mm5.72 mm1.55 ctJ / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 1549934703
Side View
Table 69.0%CrownGirdle: ThickPavilionCulet: NoneDepth 69.6%

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: £2,618 GBP|Low: £1,960 GBP|High: £4,678 GBP|Avg: £2,806 GBP|-7.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 7, 2026
Retailer 7£1,960 GBP
Retailer 2£2,037 GBP
Retailer 4£2,116 GBP
Retailer 3£2,191 GBP
Retailer 11£2,223 GBP
Retailer 8£2,384 GBP
Retailer 6£2,428 GBP
Retailer 1£2,618 GBP
Retailer 9£2,944 GBP
Retailer 5£4,063 GBP
Retailer 10£4,415 GBP

39 data points across 11 retailers

13 retailers£1,960 GBP to £4,415 GBP

A
Cheapest Retailer
-
£1,960 GBP
A
Retailer 2
-
£2,037 GBP
View
A
Retailer 3
-
£2,116 GBP
View
Final sale: no returns
A
Retailer 4
-
£2,191 GBP
View
A
Retailer 5
-
£2,223 GBP
View
A
Retailer 6
-
£2,384 GBP
View
A
Retailer 7
-
£2,428 GBP
View
A
Retailer 8
-
£2,618 GBP
View
B+
Retailer 9
-
£2,805 GBP
View
B+
Retailer 10
-
£2,944 GBP
View
B
Retailer 11
-
£4,063 GBP
View
B
Retailer 12
-
£4,415 GBP
View
Most Expensive
NZ Jewellers
3fde1d46-4b5a-4945-8972-e9c2438b3c38 · Sep 25
£4,815 GBP
$6,445 USD
View
Price last confirmed 42 days ago
12 more retailers have this diamond
Prices start from £1,960 GBPSave up to £2,454 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
1.55ct Radiant
£1,960 GBP