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0.64ct K SI2 Round Natural Diamond

EX • K/SI2 • GIA 6451896295

Certificate GIA 6451896295

Diamond specifications and retailer prices

From £524 GBP
As of November 4, 2026
Save £555 GBP (51%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: £1,079 GBP at MOH London · As of November 4, 2026
View at MOH London

About this 0.64ct natural round diamond

This 0.64ct natural round sits in the half to three-quarter carat band, graded K colour (faint-tinted) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6451896295. Listed at 4 retailers as of November 4, 2026, with prices from £524 to £1,079, a £555 spread on the same certified stone. MOH London lists it at £1,079. 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

0.64
Carat
K
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6451896295
Dimensions5.50 × 5.48 × 3.42 mm
L/W Ratio1.00
Top View
5.50 mm5.48 mm0.64 ctK / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6451896295
Side View
Table 58.0%CrownGirdle: Slightly ThickPavilionCulet: NoneDepth 62.3%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: £1,079 GBP|Low: £524 GBP|High: £1,093 GBP|Avg: £754 GBP|-0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 6, 2026
Retailer 4£524 GBP
Retailer 5£637 GBP
Retailer 2£698 GBP
Retailer 3£827 GBP
MOH London£1,079 GBP

40 data points across 5 retailers

4 retailers£524 GBP to £1,079 GBP

B+
Cheapest Retailer
-
£524 GBP
B
Retailer 2
-
£698 GBP
View
B
Retailer 3
-
£827 GBP
View
Most Expensive
B
MOH London
CEB853480 · Nov 4
£1,079 GBP
View
3 more retailers have this diamond
Prices start from £524 GBPSave up to £555 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.

B+
0.64ct Round
£524 GBP