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Oval|Natural|GIA

20.32ct D SI1 Oval Natural Diamond

EX • D/SI1 • GIA 2235178666

Certificate GIA 2235178666

Diamond specifications and retailer prices

From $2,617,504 NZD
$1,475,232 USD
As of October 31, 2026
1 retailer carries this diamond
Only listing: $2,617,504 NZD at William & Sons Jewelers
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 William & Sons Jewelers

About this 20.32ct natural oval diamond

This 20.32ct natural oval sits in the over five carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2235178666. Listed at a single retailer as of October 31, 2026. If it later appears at another store, Carat Hunter will surface the price comparison automatically. 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

20.32
Carat
D
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2235178666
Dimensions21.98 × 15.65 × 9.64 mm
L/W Ratio1.40
Top View
21.98 mm15.65 mm20.32 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2235178666
Side View
Table 60.0%CrownGirdle: MED-STKPavilionCulet: NoneDepth 61.6%

Caratlytics Score

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

Last verified: Oct 31
Current: $2,310,435 NZD|Low: $2,310,435 NZD|High: $2,617,504 NZD|Avg: $2,404,481 NZD
Retailer 1
William & Sons Jewelers
October 5, 2026
Retailer 1$2,310,435 NZD
William & Sons Jewelers$2,617,504 NZD

2 data points across 2 retailers

1 retailer

B+
William & Sons Jewelers
cert_2235178666 · Oct 31
$2,617,504 NZD
$1,475,232 USD
View
Final sale: no returns

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+
20.32ct Oval
$2,617,504 NZD