Oval|Natural|GIA

0.65ct F SI2 Oval Natural Diamond

EX • F/SI2 • GIA 6555373479

Certificate GIA 6555373479

Diamond specifications and retailer prices

From £305 GBP
SGD 552 SGD
As of October 31, 2026
Save £335 GBP (52%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: £639 GBP at Frank Darling · As of November 2, 2026
View at Frank Darling

About this 0.65ct natural oval diamond

This 0.65ct natural oval sits in the half to three-quarter carat band, graded F colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6555373479. Listed at 7 retailers as of October 31, 2026, with prices from £305 to £639, a £335 spread on the same certified stone. Frank Darling lists it at £639. 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
F
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle39.19°
Pavilion angle40.5°
OriginNatural
Grading LabGIA
CertificateGIA 6555373479
Dimensions6.92 × 4.86 × 3.00 mm
L/W Ratio1.42
Culet sizeNone
Top View
6.92 mm4.86 mm0.65 ctF / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6555373479
Side View
Table 60.0%Crown 39.19°Girdle: THN-THKPavilion 40.5°Culet: NoneDepth 61.8%

Caratlytics Score

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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: Oct 31
Current: £639 GBP|Low: £305 GBP|High: £687 GBP|Avg: £470 GBP|-7.0%
Frank Darling
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 28, 2026
Retailer 4£305 GBP
Retailer 5£317 GBP
Retailer 3£363 GBP
Retailer 2£413 GBP
Retailer 9£429 GBP
Retailer 6£491 GBP
Retailer 8£524 GBP
Retailer 7£578 GBP
Frank Darling£639 GBP

20 data points across 9 retailers

7 retailers£305 GBP to £639 GBP

A
Cheapest Retailer
-
£305 GBP
SGD 552 SGD
A
Retailer 2
-
£317 GBP
SGD 574 SGD
View
A
Retailer 3
-
£363 GBP
View
A
Retailer 4
-
£413 GBP
$553 USD
View
A
Retailer 5
-
£429 GBP
$575 USD
View
A
Retailer 6
-
£491 GBP
$658 USD
View
Most Expensive
A
Frank Darling
2648787HK · Nov 2
£639 GBP
$857 USD
View
6 more retailers have this diamond
Prices start from £305 GBPSave up to £335 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 Oval
£305 GBP