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0.63ct M SI2 Round Natural Diamond

EX • M/SI2 • GIA 1427814003

Certificate GIA 1427814003

Diamond specifications and retailer prices

From £187 GBP
As of November 5, 2026
Save £238 GBP (56%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: £425 GBP at Yorxs · As of November 1, 2026
View at Yorxs

About this 0.63ct natural round diamond

This 0.63ct natural round sits in the half to three-quarter carat band, graded M colour (faint-tinted) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1427814003. Listed at 2 retailers as of November 1, 2026, with prices from £187 to £425, a £238 spread on the same certified stone. Yorxs lists it at £425. 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
M
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 1427814003
Dimensions5.42 × 5.46 × 3.41 mm
L/W Ratio1.01
Top View
5.42 mm5.46 mm0.63 ctM / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 1427814003
Side View
Table 58.0%CrownGirdle: MED-STKPavilionCulet: NoneDepth 62.6%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 5
Current: £187 GBP|Low: £187 GBP|High: £428 GBP|Avg: £306 GBP|-1.6%
Retailer 1
Yorxs
November 5, 2026
Retailer 1£187 GBP
Yorxs£425 GBP

43 data points across 2 retailers

2 retailers£187 GBP to £425 GBP

A
Cheapest Retailer
-
£187 GBP
Most Expensive
B+
Yorxs
6-65. · Nov 1
£425 GBP
€545 EUR
View
1 more retailer has this diamond
Prices start from £187 GBPSave up to £238 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
£187 GBP