Round|Natural|GIA

0.63ct E SI1 Round Natural Diamond

EX • E/SI1 • GIA 7446554205

Certificate GIA 7446554205

Diamond specifications and retailer prices

From £439 GBP
₹55,705 INR
As of October 29, 2026
Save £1,405 GBP (76%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: £1,925 GBP at NZ Jewellers · As of September 24, 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 7446554205. Listed at 24 retailers as of October 26, 2026, with a 320% 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
PolishVery Good
SymmetryExcellent
FluorescenceStrong
Crown angle35°
Pavilion angle41.4°
OriginNatural
Grading LabGIA
CertificateGIA 7446554205
Dimensions5.50 × 5.46 × 3.44 mm
L/W Ratio1.01
Top View
5.50 mm5.46 mm0.63 ctE / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceStrong
CertificateGIA 7446554205
Side View
Table 57.0%Crown 35°Girdle: MED-STKPavilion 41.4°Culet: NoneDepth 62.7%

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: £1,844 GBP|Low: £436 GBP|High: £1,844 GBP|Avg: £759 GBP
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
October 29, 2026
Retailer 10£439 GBP
Retailer 8£567 GBP
Retailer 15£586 GBP
Retailer 3£588 GBP
Retailer 4£588 GBP
Retailer 6£597 GBP
Retailer 13£597 GBP
Retailer 7£600 GBP
Retailer 16£611 GBP
Retailer 17£670 GBP
Retailer 5£679 GBP
Retailer 2£701 GBP
Retailer 12£762 GBP
Retailer 14£876 GBP
Retailer 9£923 GBP
Retailer 11£1,083 GBP
NZ Jewellers£1,844 GBP

32 data points across 17 retailers

24 retailers£439 GBP to £1,844 GBP

A
Cheapest Retailer
-
£439 GBP
₹55,705 INR
A
Retailer 2
-
£567 GBP
$755 USD
View
Final sale: no returns
A
Retailer 3
-
£581 GBP
$774 USD
View
Price last confirmed 49 days ago
A
Retailer 4
-
£586 GBP
$780 USD
View
Price last confirmed 11 days ago
A
Retailer 5
-
£588 GBP
$783 USD
View
A
Retailer 6
-
£588 GBP
$783 USD
View
A
Retailer 7
-
£597 GBP
$795 USD
View
A
Retailer 8
-
£597 GBP
$795 USD
View
A
Retailer 9
-
£600 GBP
$799 USD
View
A
Retailer 10
-
£611 GBP
$813 USD
View
A
Retailer 11
-
£614 GBP
$817 USD
View
Price last confirmed 36 days ago
A
Retailer 12
-
£670 GBP
$892 USD
View
A
Retailer 13
-
£671 GBP
$893 USD
View
Price last confirmed 52 days ago
A
Retailer 14
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£679 GBP
$904 USD
View
A
Retailer 15
-
£701 GBP
View
A
Retailer 16
-
£708 GBP
$943 USD
View
Price last confirmed 37 days ago
A
Retailer 17
-
£762 GBP
€967 EUR
View
B+
Retailer 18
-
£876 GBP
ZAR 18,848 ZAR
View
B+
Retailer 19
-
£923 GBP
A$1,891 AUD
View
Price last confirmed 25 days ago
B+
Retailer 20
-
£1,083 GBP
View
B
Retailer 21
-
£1,408 GBP
View
B
Retailer 22
-
£1,822 GBP
$2,426 USD
View
Price last confirmed 48 days ago
B
Retailer 23
-
£1,844 GBP
$2,456 USD
View
Most Expensive
B
NZ Jewellers
87db1e81-3bd7-4834-9184-e24ed3f46ec3 · Sep 24
£1,925 GBP
$2,564 USD
View
Price last confirmed 35 days ago
23 more retailers have this diamond
Prices start from £439 GBPSave up to £1,405 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
£439 GBP