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Round|Natural|GIA

0.45ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 1533989187

Certificate GIA 1533989187

Diamond specifications and retailer prices

From £154 GBP
As of November 6, 2026
Save £808 GBP (84%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: £962 GBP at NZ Jewellers · As of November 4, 2026
View at NZ Jewellers

About this 0.45ct natural round diamond

This 0.45ct natural round sits in the sub-half-carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1533989187. Listed at 21 retailers as of November 4, 2026, with prices from £154 to £962, a £808 spread on the same certified stone. NZ Jewellers lists it at £962. 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

0.45
Carat
I
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceMedium
Crown angle35°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 1533989187
Dimensions4.92 × 4.86 × 3.03 mm
L/W Ratio1.01
Key to symbols
Crystal, Feather
Top View
4.92 mm4.86 mm0.45 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceMedium
CertificateGIA 1533989187
Side View
Table 59.0%Crown 35°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 62.1%

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: Nov 6
Current: £962 GBP|Low: £154 GBP|High: £999 GBP|Avg: £327 GBP|-2.5%
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
Retailer 16
Retailer 17
Retailer 18
Retailer 19
November 6, 2026
Retailer 12£154 GBP
Retailer 18£168 GBP
Retailer 11£190 GBP
Retailer 6£212 GBP
Retailer 14£233 GBP
Retailer 10£238 GBP
Retailer 2£240 GBP
Retailer 7£245 GBP
Retailer 4£253 GBP
Retailer 15£266 GBP
Retailer 8£286 GBP
Retailer 17£297 GBP
Retailer 9£321 GBP
Retailer 19£331 GBP
Retailer 16£367 GBP
Retailer 5£379 GBP
Retailer 13£427 GBP
Retailer 3£490 GBP
NZ Jewellers£962 GBP

14 data points across 19 retailers

21 retailers£154 GBP to £962 GBP

A
Cheapest Retailer
-
£154 GBP
A
Retailer 2
-
£168 GBP
View
A
Retailer 3
-
£190 GBP
View
A
Retailer 4
-
£212 GBP
View
A
Retailer 5
-
£233 GBP
View
Retailer 6
-
£238 GBP
View
Price last confirmed 8 days ago
A
Retailer 7
-
£240 GBP
View
A
Retailer 8
-
£245 GBP
View
A
Retailer 9
-
£253 GBP
View
A
Retailer 10
-
£266 GBP
View
Retailer 11
-
£279 GBP
View
Price last confirmed 51 days ago
A
Retailer 12
-
£286 GBP
View
A
Retailer 13
-
£297 GBP
View
Retailer 14
-
£321 GBP
View
Price last confirmed 7 days ago
A
Retailer 15
-
£331 GBP
View
A
Retailer 16
-
£367 GBP
View
A
Retailer 17
-
£379 GBP
View
Retailer 18
-
£409 GBP
View
Price last confirmed 38 days ago
B+
Retailer 19
-
£427 GBP
View
B+
Retailer 20
-
£490 GBP
View
Most Expensive
C
NZ Jewellers
557ebd78-ab8e-40a9-ac6c-43c110e4162f · Nov 4
£962 GBP
$1,295 USD
View
20 more retailers have this diamond
Prices start from £154 GBPSave up to £808 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
0.45ct Round
£154 GBP