Round|Natural|GIA

0.63ct E SI1 Round Natural Diamond

EX • E/SI1 • GIA 2554958968

Certificate GIA 2554958968

Diamond specifications and retailer prices

From £500 GBP
HK$5,200 HKD
As of October 29, 2026
Save £728 GBP (59%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: £2,179 GBP at NZ Jewellers · As of October 3, 2026
View at NZ Jewellers

About this 0.63ct natural round diamond

This 0.63ct natural round sits in the half to three-quarter carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2554958968. Listed at 24 retailers as of October 29, 2026, with a 146% 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

0.63
Carat
E
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 2554958968
Dimensions5.50 × 5.52 × 3.38 mm
L/W Ratio1.00
Culet sizeNone
Key to symbols
Cloud, Feather
Top View
5.50 mm5.52 mm0.63 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2554958968
Side View
Table 60.0%Crown 34.5°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 61.4%

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: £773 GBP|Low: £500 GBP|High: £1,227 GBP|Avg: £751 GBP|+0.6%
Retailer 1
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
October 29, 2026
Retailer 5£500 GBP
Retailer 8£509 GBP
Retailer 11£614 GBP
Retailer 6£622 GBP
Retailer 4£668 GBP
Retailer 3£683 GBP
Retailer 7£704 GBP
Retailer 2£760 GBP
Retailer 1£773 GBP
Retailer 9£785 GBP
Retailer 12£792 GBP
Retailer 13£881 GBP
Retailer 14£882 GBP
Retailer 15£983 GBP
Retailer 10£1,227 GBP

22 data points across 15 retailers

24 retailers£500 GBP to £1,227 GBP

A
Cheapest Retailer
-
£500 GBP
HK$5,200 HKD
A
Retailer 2
-
£509 GBP
₹64,576 INR
View
A
Retailer 3
-
£614 GBP
$818 USD
View
Final sale: no returns
A
Retailer 4
-
£622 GBP
A$1,275 AUD
View
A
Retailer 5
-
£668 GBP
$890 USD
View
A
Retailer 6
-
£683 GBP
$910 USD
View
Price last confirmed 49 days ago
A
Retailer 7
-
£683 GBP
$910 USD
View
A
Retailer 8
-
£695 GBP
$925 USD
View
Price last confirmed 26 days ago
A
Retailer 9
-
£704 GBP
SGD 1,266 SGD
View
A
Retailer 10
-
£728 GBP
$970 USD
View
Price last confirmed 30 days ago
A
Retailer 11
-
£760 GBP
$1,012 USD
View
A
Retailer 12
-
£773 GBP
View
A
Retailer 13
-
£785 GBP
$1,045 USD
View
B+
Retailer 14
-
£788 GBP
$1,050 USD
View
Price last confirmed 48 days ago
A
Retailer 15
-
£792 GBP
View
A
Retailer 16
-
£802 GBP
$1,068 USD
View
Price last confirmed 27 days ago
B+
Retailer 17
-
£881 GBP
€1,117 EUR
View
B+
Retailer 18
-
£882 GBP
$1,175 USD
View
B+
Retailer 19
-
£897 GBP
A$1,838 AUD
View
B+
Retailer 20
-
£983 GBP
ZAR 21,158 ZAR
View
B+
Retailer 21
-
£1,045 GBP
A$2,141 AUD
View
Price last confirmed 24 days ago
B+
Retailer 22
-
£1,227 GBP
View
B
Retailer 23
-
£2,142 GBP
$2,853 USD
View
Price last confirmed 48 days ago
Most Expensive
B
NZ Jewellers
c296e0d8-b864-4aa7-b7ee-6c4a48b9c8ae · Oct 3
£2,179 GBP
$2,902 USD
View
Price last confirmed 26 days ago
23 more retailers have this diamond
Prices start from £500 GBPSave up to £728 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
0.63ct Round
£500 GBP