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Round|Natural|GIA

0.64ct K SI2 Round Natural Diamond

VG • K/SI2 • GIA 7418949255

Certificate GIA 7418949255

Diamond specifications and retailer prices

From £251 GBP
As of November 6, 2026
Save £1,126 GBP (82%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £1,378 GBP at NZ Jewellers · As of November 4, 2026
View at NZ Jewellers

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 very-good cut grade and certified by GIA 7418949255. Listed at 16 retailers as of November 4, 2026, with prices from £251 to £1,378, a £1,126 spread on the same certified stone. NZ Jewellers lists it at £1,378. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

0.64
Carat
K
Colour
SI2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle38°
Pavilion angle40°
OriginNatural
Grading LabGIA
CertificateGIA 7418949255
Dimensions5.45 × 5.39 × 3.41 mm
L/W Ratio1.01
Top View
5.45 mm5.39 mm0.64 ctK / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 7418949255
Side View
Table 58.0%Crown 38°Girdle: STK-THKPavilion 40°Culet: NoneDepth 63.0%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: £251 GBP|Low: £251 GBP|High: £840 GBP|Avg: £467 GBP|-2.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 6, 2026
Retailer 1£251 GBP
Retailer 5£364 GBP
Retailer 2£367 GBP
Retailer 8£387 GBP
Retailer 3£442 GBP
Retailer 7£490 GBP
Retailer 4£492 GBP
Retailer 6£829 GBP

40 data points across 8 retailers

16 retailers£251 GBP to £1,378 GBP

A
Cheapest Retailer
-
£251 GBP
B+
Retailer 2
-
£294 GBP
View
B+
Retailer 3
-
£360 GBP
View
B+
Retailer 4
-
£364 GBP
View
B+
Retailer 5
-
£367 GBP
View
Retailer 6
-
£387 GBP
View
Price last confirmed 8 days ago
B+
Retailer 7
-
£387 GBP
View
B+
Retailer 8
-
£415 GBP
View
B+
Retailer 9
-
£415 GBP
View
B+
Retailer 10
-
£442 GBP
View
B+
Retailer 11
-
£457 GBP
View
B+
Retailer 12
-
£490 GBP
View
B+
Retailer 13
-
£492 GBP
View
B
Retailer 14
-
£736 GBP
View
B
Retailer 15
-
£829 GBP
View
Most Expensive
C
NZ Jewellers
3c79a001-378c-4cd9-908e-6e66b7a18c64 · Nov 4
£1,378 GBP
$1,854 USD
View
15 more retailers have this diamond
Prices start from £251 GBPSave up to £1,126 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
0.64ct Round
£251 GBP