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Oval|Natural|GIA

20.42ct D VS1 Oval Natural Diamond

D/VS1

Diamond specifications and retailer prices

From $3,350,659 NZD
$1,888,440 USD
As of October 29, 2026
Save $134,027 NZD (4%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: $3,484,686 NZD at Carbon Sparkle · As of November 1, 2026
View at Carbon Sparkle

About this 20.42ct natural oval diamond

This 20.42ct natural oval sits in the over five carat band, graded D colour (colourless) and VS1 clarity (very-slightly-included) and certified by GIA. Listed at 2 retailers as of October 29, 2026, with a relatively tight 4% spread, which is unusual at this carat range and suggests competitive pricing across the listings. 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

20.42
Carat
D
Colour
VS1
Clarity
-
Cut

Specifications

Cut
PolishExcellent
SymmetryExcellent
FluorescenceMedium
OriginNatural
Grading LabGIA
Dimensions20.81 × 15.04 × 10.10 mm
L/W Ratio1.38
Top View
20.81 mm15.04 mm20.42 ctD / VS1
OriginNatural
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA
Side View
Table 58.0%CrownGirdlePavilionCuletDepth 67.2%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: $3,484,686 NZD|Low: $3,035,540 NZD|High: $5,629,109 NZD|Avg: $3,666,756 NZD
Carbon Sparkle
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
October 16, 2026
Retailer 3$3,035,540 NZD
Retailer 5$3,216,634 NZD
Retailer 7$3,331,953 NZD
Retailer 2$3,350,659 NZD
Carbon Sparkle$3,484,686 NZD
Retailer 4$3,618,713 NZD
Retailer 6$5,629,109 NZD

4 data points across 7 retailers

2 retailers$3,350,659 NZD to $3,484,686 NZD

B+
Cheapest Retailer
-
$3,350,659 NZD
$1,888,440 USD
Most Expensive
B
Carbon Sparkle
9dec36eb-4921-4baf-8d47-f54376de1bf2 · Nov 1
$3,484,686 NZD
$1,963,978 USD
View
1 more retailer has this diamond
Prices start from $3,350,659 NZDSave up to $134,027 NZD

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+
20.42ct Oval
$3,350,659 NZD