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Oval|Natural|GIA

20.66ct D FL Oval Natural Diamond

D/FL • GIA 2221500018

Certificate GIA 2221500018

Diamond specifications and retailer prices

From £1,593,369 GBP
€2,020,820 EUR
As of October 28, 2026
1 retailer carries this diamond
Only listing: £1,593,369 GBP at Baunat/BNT Diamonds
Only one retailer lists this diamond right now, and it is shown above, so there is nothing to unlock. Similar diamonds are carried by several retailers.
View at Baunat/BNT Diamonds

About this 20.66ct natural oval diamond

This 20.66ct natural oval sits in the over five carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless) and certified by GIA 2221500018. Listed at a single retailer as of October 28, 2026. If it later appears at another store, Carat Hunter will surface the price comparison automatically. 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

20.66
Carat
D
Colour
FL
Clarity
-
Cut

Specifications

Cut
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2221500018
Dimensions22.60 × 15.35 × 9.40 mm
L/W Ratio1.47
Top View
22.60 mm15.35 mm20.66 ctD / FL
OriginNatural
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2221500018
Side View
Table 55.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 61.3%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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Price History

Last verified: Oct 28
Current: £1,593,369 GBP|Low: £1,565,623 GBP|High: £1,593,369 GBP|Avg: £1,574,882 GBP|+1.8%
October 4, 2026
Baunat/BNT Diamonds£1,593,369 GBP

3 data points across 1 retailer

1 retailer

B+
Baunat/BNT Diamonds
183964120 · Oct 28
£1,593,369 GBP
€2,020,820 EUR
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B+
20.66ct Oval
£1,593,369 GBP