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0.65ct K SI2 Round Natural Diamond

EX • K/SI2 • GIA 6243098003

Certificate GIA 6243098003

Diamond specifications and retailer prices

From £387 GBP
As of November 5, 2026
Save £332 GBP (46%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £719 GBP at Frank Darling · As of November 6, 2026
View at Frank Darling

About this 0.65ct natural round diamond

This 0.65ct 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 6243098003. Listed at 11 retailers as of November 5, 2026, with prices from £387 to £719, a £332 spread on the same certified stone. Frank Darling lists it at £719. 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

0.65
Carat
K
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle35°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 6243098003
Dimensions5.52 × 5.55 × 3.45 mm
L/W Ratio1.01
Culet sizeNone
Top View
5.52 mm5.55 mm0.65 ctK / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6243098003
Side View
Table 57.0%Crown 35°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 62.4%

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 5
Current: £719 GBP|Low: £386 GBP|High: £744 GBP|Avg: £558 GBP|-3.4%
Frank Darling
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 6£387 GBP
Retailer 8£400 GBP
Retailer 3£416 GBP
Retailer 4£466 GBP
Retailer 7£490 GBP
Retailer 11£538 GBP
Retailer 5£580 GBP
Retailer 9£585 GBP
Retailer 2£590 GBP
Retailer 10£616 GBP
Frank Darling£719 GBP

22 data points across 11 retailers

11 retailers£387 GBP to £719 GBP

A
Cheapest Retailer
-
£387 GBP
A
Retailer 2
-
£400 GBP
View
A
Retailer 3
-
£416 GBP
View
A
Retailer 4
-
£466 GBP
View
A
Retailer 5
-
£490 GBP
View
B+
Retailer 6
-
£538 GBP
View
B+
Retailer 7
-
£580 GBP
View
B+
Retailer 8
-
£585 GBP
View
B+
Retailer 9
-
£590 GBP
View
B+
Retailer 10
-
£616 GBP
View
Most Expensive
B+
Frank Darling
2706055HK · Nov 6
£719 GBP
$968 USD
View
10 more retailers have this diamond
Prices start from £387 GBPSave up to £332 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
0.65ct Round
£387 GBP