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Radiant|Natural|GIA

0.90ct E SI1 Radiant Natural Diamond

EX • E/SI1 • GIA 1545606797

Certificate GIA 1545606797

Diamond specifications and retailer prices

From £980 GBP
HK$10,200 HKD
As of October 29, 2026
Save £1,395 GBP (59%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £3,192 GBP at NZ Jewellers · As of October 6, 2026
View at NZ Jewellers

About this 0.9ct natural radiant diamond

This 0.9ct natural radiant sits in the just-under-one-carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1545606797. Listed at 10 retailers as of October 29, 2026, with a 142% 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

0.90
Carat
E
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1545606797
Dimensions6.63 × 4.88 × 3.28 mm
L/W Ratio1.36
Culet sizeNone
Key to symbols
Feather, Crystal
Top View
6.63 mm4.88 mm0.90 ctE / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceNone
CertificateGIA 1545606797
Side View
Table 61.0%CrownGirdle: SLI-POLPavilionCulet: NoneDepth 67.2%

Caratlytics Score

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

Price History

Last verified: Oct 29
Current: £1,737 GBP|Low: £980 GBP|High: £2,700 GBP|Avg: £1,452 GBP|-7.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
October 30, 2026
Retailer 2£980 GBP
Retailer 4£1,021 GBP
Retailer 3£1,048 GBP
Retailer 6£1,261 GBP
Retailer 7£1,405 GBP
Retailer 1£1,737 GBP
Retailer 5£2,376 GBP

45 data points across 7 retailers

10 retailers£980 GBP to £2,376 GBP

A
Cheapest Retailer
-
£980 GBP
HK$10,200 HKD
A
Retailer 2
-
£1,021 GBP
₹129,438 INR
View
A
Retailer 3
-
£1,048 GBP
$1,395 USD
View
Final sale: no returns
A
Retailer 4
-
£1,261 GBP
$1,679 USD
View
A
Retailer 5
-
£1,405 GBP
SGD 2,528 SGD
View
Retailer 6
-
£1,428 GBP
$1,902 USD
View
Price last confirmed 28 days ago
Retailer 7
-
£1,527 GBP
$2,033 USD
View
Price last confirmed 22 days ago
B+
Retailer 8
-
£1,737 GBP
View
B
Retailer 9
-
£2,376 GBP
View
Most Expensive
NZ Jewellers
c338a6c1-ce1c-4cc0-84de-5894107c57d5 · Oct 6
£3,192 GBP
$4,251 USD
View
Price last confirmed 23 days ago
9 more retailers have this diamond
Prices start from £980 GBPSave up to £1,395 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
0.90ct Radiant
£980 GBP