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1.63ct D SI2 Round Natural Diamond

EX • D/SI2 • GIA 5413633467

Certificate GIA 5413633467

Diamond specifications and retailer prices

From $19,648 AUD
£10,867 GBP
As of October 30, 2026
Save $2,530 AUD (11%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: $22,178 AUD at Blue Nile · As of October 29, 2026
View at Blue Nile

About this 1.63ct natural round diamond

This 1.63ct natural round sits in the one-and-a-half to two carat band, graded D colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 5413633467. Listed at 2 retailers as of October 29, 2026, with a relatively tight 13% spread, which is unusual at this carat range and suggests competitive pricing across the listings. 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

1.63
Carat
D
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 5413633467
Dimensions7.49 × 7.55 × 4.67 mm
L/W Ratio1.01
Top View
7.49 mm7.55 mm1.63 ctD / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 5413633467
Side View
Table 60.0%CrownGirdle: MED-STKPavilionCulet: NoneDepth 62.0%

Caratlytics Score

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

Last verified: Oct 30
Current: $22,178 AUD|Low: $19,296 AUD|High: $22,178 AUD|Avg: $20,733 AUD
Blue Nile
Retailer 2
October 30, 2026
Retailer 2$19,648 AUD
Blue Nile$22,178 AUD

34 data points across 2 retailers

2 retailers$19,648 AUD to $22,178 AUD

B+
Cheapest Retailer
-
$19,648 AUD
£10,867 GBP
Most Expensive
B
Blue Nile
15458541 · Oct 29
$22,178 AUD
$15,579 USD
View
1 more retailer has this diamond
Prices start from $19,648 AUDSave up to $2,530 AUD

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+
1.63ct Round
$19,648 AUD