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Round|Natural|GIA

0.65ct K SI2 Round Natural Diamond

GD • K/SI2 • GIA 2239373720

Certificate GIA 2239373720

Diamond specifications and retailer prices

From £403 GBP
As of November 4, 2026
Save £314 GBP (44%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: £717 GBP at 77 Diamonds · As of November 6, 2026
View at 77 Diamonds

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 standard cut grade and certified by GIA 2239373720. Listed at 5 retailers as of November 4, 2026, with prices from £403 to £717, a £314 spread on the same certified stone. 77 Diamonds lists it at £717. 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

0.65
Carat
K
Colour
SI2
Clarity
Good
Cut

Specifications

CutGood
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2239373720
Dimensions5.44 × 5.52 × 3.42 mm
L/W Ratio1.01
Top View
5.44 mm5.52 mm0.65 ctK / SI2
OriginNatural
CutGood
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 2239373720
Side View
Table 65.0%CrownGirdle: MED-THKPavilionCulet: SmallDepth 62.4%

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: £717 GBP|Low: £485 GBP|High: £728 GBP|Avg: £621 GBP|+0.8%
77 Diamonds
Retailer 2
Retailer 3
November 6, 2026
Retailer 3£490 GBP
Retailer 2£649 GBP
77 Diamonds£717 GBP

41 data points across 3 retailers

5 retailers£403 GBP to £717 GBP

B+
Cheapest Retailer
-
£403 GBP
B+
Retailer 2
-
£490 GBP
View
B
Retailer 3
-
£584 GBP
View
B
Retailer 4
-
£649 GBP
View
Most Expensive
B
77 Diamonds
RBMBAAKZZDJE · Nov 6
£717 GBP
View
4 more retailers have this diamond
Prices start from £403 GBPSave up to £314 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+
0.65ct Round
£403 GBP